Tunnel

FIELD: building, particularly underground structures built under difficult mining and geological conditions, namely in presence of soft watered grounds at tunnel base.

SUBSTANCE: tunnel comprises prefabricated lining including hollow metal members driven in ground and forming a screen, load-bearing frames and grouting concrete. Metal members are joined by means of locking means. At least some metal members driven in ground have constant outer diameters. At least part of above metal members are composed of sections having different lengths. Lengths of the metal members decrease in direction opposite to the driving direction.

EFFECT: increased reliability and operational safety due to prevention of original ground surface settlement during tunnel building and operation; prevention of ground settlement during tunnel building under traffic road without traffic interruption, reduced time of tunnel building, labor and power inputs, material consumption due to optimal material distribution along driven member in correspondence with loading of its sections.

21 cl, 12 dwg

 

The invention relates to the field of construction, namely, the construction of underground structures, erected in difficult mining and geological conditions, including weak watered soil that lies beneath the tray tunnel and forming its base.

Closest to the invention in its essence and the achieved technical result is a tunnel, constructed in soft soils, with precast-monolithic lining, comprising forming a perforated screen in the ground hollow metal elements, combined locks, load bearing frame and the concrete poured (see, for example, RU 2138507, 27.09.1999).

However, the known design of the tunnel does not take into account different degrees of loading of each element, the resulting stresses in length and when the construction is rather time-consuming and material-intensive.

The present invention is to improve the reliability and safety of long-term operation of the tunnel, built in difficult mining and geological conditions, while reducing the consumption of materials and labor.

The problem is solved due to the fact that in the tunnel, constructed in soft soils, with precast-monolithic lining, comprising forming a perforated screen in the ground hollow metallic screen elements, combined locks, mainframes and bionomenclature, according to the invention, at least part of the perforated hollow in the ground metal elements of the screen is made with a constant outer diameter and at least part of their length elements made of different size along the length of the sections, the length of which decreases in the direction opposite to the direction of thrust.

Hollow metal screen elements can be performed with a closed or open cross-sectional configuration, including metal pipes, mainly kropiewnicki, including rolled and/or welded and/or cold and/or solder along the seam, and/or seamless, and/or spiral.

Cavity of screen elements can be filled with a hardening material, which can be used in concrete or polymer concrete. Filling the cavities of the screen elements can be made with reinforcement.

The reinforcement cavities of the screen elements can be carried by the frames, and/or rods and/or nets, and/or with the inclusion of rolled sections and/or with the use of beam structures is a type of flat or spatial farms.

At least part of the surfaces of the screen elements can be made with a protective coating.

Hollow metal elements screen, supporting frames and concrete concreting can form together the Yu composite spatial system.

Mainframes can be performed single-span or multi-span, with posts and beams made in the form of closed or open, and/or the combined profiles of rolled and/or bent and/or welded and/or tubular elements.

Interlocking connection of the hollow metallic screen elements can be made in the form of lock forming, welded to facing each other, the adjacent surfaces of the metal elements of the screen are two extended locking elements, one of which is made of C-shaped in cross-section, and the other is made in the form of a wound in his wall with located on the free edge of the broadening width greater than the width of the cross-section of a C-shaped cross section with a locking element.

Interlocking connection of the hollow metallic screen elements can be made in the form of lock forming, welded to facing each other, the surfaces of adjacent elements of the screen are two extended locking elements, which one of the adjacent elements of the screen is made of C-shaped in cross section and the other in the form of exciting in a C-shaped locking elements of the walls located on the free edge of each wall by widening a width greater than the width of cross-sections C-shaped in cross-section of the locking elements.

The tunnel can be made with pile Foundation is receiving, piles which are made of injection.

Pressed in the ground hollow metallic screen elements can be located around the perimeter of the tunnel with the formation of a protective screen, part of the flume which together with the elements of the supporting frame, the pile Foundation pile Foundation and reinforced concrete monolithic and/or prefabricated elements of the tray forms part of the flume lining.

The tunnel can be performed with portals, with a retaining wall of variable height and protective screen located in the grounds of the portals and at least part of the height and length adjacent to the base of the retaining wall, and a protective shield made of a depression in the ground, hollow metal elements, the cavity of which is filled by reinforced concrete.

The base of the portals can be performed pile, with transition plates.

Pile Foundation portals can be made of injection, cementogenesis.

The lining may include overlapping walls and the tray, and the thickness of slabs, walls and tray tunnel are related as 1:(0,7...1,2):(0,5...0,9), the diameter of the piles is 600...1000 mm at a length of 10...16 m, and the diameter of the elements of the screen is 800 to 1400 mm

With one inner side of the tunnel can be established utility track, and on the other side of the sidewalk.

Road clothing tunnel can be made of placentas is tion spaced from the bottom up layers of claydite-concrete, porous asphalt and a layer of dense asphalt concrete with a surface treatment.

Road clothing official track can be made of consecutive bottom-up layers of gravel with a layer of polystyrene foam, the layer of cement-sand mixture and tile flooring.

Road wear of the pavement can be made of consecutive bottom-up layers of gravel with a layer of polystyrene foam, mortar screed, cement-sand mixture and tile flooring.

Technical result provided by the invention is to improve reliability and safety of operation by eliminating the sediment surface as during the construction and operation while reducing sediment soil base tunnel constructed under the highway without interruption of traffic in difficult mining and geological conditions, including in the presence of weak flooded soils at the base of the tunnel, while reducing construction time, energy, labor and materialsfrom due to the optimum distribution of material along the length of the breakable element corresponding to the degree of loading of its sites.

The invention is illustrated by drawings, where

1 shows a longitudinal section of the future tunnel on stage PR is dalimania hollow elements of the screen behind the walls of the future tunnel;

figure 2 - the hollow element of the screen in the form of a composite metal pipes, longitudinal section;

figure 3 is a hollow element of the screen in the form of a composite metal pipes with different wall thickness, longitudinal section;

figure 4 is a hollow screen element in cross section;

figure 5 - lock connection hollow metallic screen elements in cross section;

figure 6 is a fragment of the cross-section of part of the tunnel at an intermediate stage of construction with protective screen frames and temporary fastening;

figure 7 is a fragment of the portal of the tunnel, longitudinal section, piles conventionally not shown;

on Fig portal of the tunnel with retaining walls, front view;

figure 9 is a cross section of the tunnel with a protective screen and pile base;

figure 10 - road clothing tunnel cross section;

figure 11 - road clothing official track tunnel cross section;

on Fig - road clothing sidewalk tunnel cross section.

Tunnel 1, constructed in soft soils, with precast-monolithic lining 2, includes forming a pressed screen 3 in the ground hollow metal elements 4, United interlocks 5, the supporting frame 6 and the concrete poured 7. At least part of the perforated hollow in the ground metal elements 4 screen is made with a constant outer diameter and Raina least on part of their length elements made of different length sections 8-10, the length of which decreases in the direction opposite to the direction of thrust.

Hollow metal elements 4 screen 3 is made with a closed or open loop configuration of the cross-section (not shown), including metal pipes, mainly kropiewnicki, including rolling, and/or welded and/or cold and/or solder along the seam, and/or seamless, and/or spiral.

Cavity 11 elements 4 screen 3 filled with hardening material, which can be used in concrete or polymer concrete. Filling cavities 11 elements 4 screen 3 can be made with reinforcement.

The reinforcement cavities 11 elements 4 screen 3 is made frames 12, and/or rods (not shown), and/or nets, and/or with the inclusion of rolled sections and/or with the use of beam structures is a type of flat or trusses (not shown).

At least part of the surface elements 4 screen 3 is made with a protective coating (not shown).

Hollow metal elements 4 screen 3, the supporting frame 6 and the concrete poured 7 together form a single composite spatial system.

The supporting frame 6 is made single-span or multi-span, with the racks of the beams 13 and 14, made in the form of closed or open, and/or the combined profiles of rolled and/or bent and/or welded and/or tubular elements.

Interlocking connection 5 hollow metal elements 4 screen 3 can be made in the form of lock forming, welded to facing each other, the surfaces of adjacent metal elements 4, two long elements, one of which is made of C-shaped in cross-section, and the other is made in the form of a wound in his wall with located on the free edge of the broadening width greater than the width of the cross-section of a C-shaped cross section with a locking element.

Interlocking connection 5 hollow metal elements 4 screen 3 can be made in the form of lock forming, welded to facing each other, the surfaces of adjacent elements 4 two long elements, which one of the adjacent elements are made of C-shaped in cross section and the other in the form of exciting them in the walls located on the free edge of each wall by widening a width greater than the width of cross-sections C-shaped in cross-section of the locking elements.

The tunnel 1 is made from pile base 15, piles 16 which is made of injection.

Pressed in the ground hollow metal elements 4 screen 3 is located along the perimeter of the tunnel 1 with the image is of a protective screen 3, part of the flume which together with the elements of the supporting frame 6, the pile Foundation pile Foundation 15 and reinforced concrete monolithic 7 and/or prefabricated elements of a tray (not shown) forms part of the flume lining.

The tunnel 1 is made with portals 17 having a retaining wall 18 of variable height and protective screen 3, located in the grounds of portals 17 and, at least part of the height and length adjacent to the base of the retaining walls 18, and a protective shield 3 is made of breakable in the ground hollow metal elements 4, the cavity 8 which is filled with reinforced concrete.

The basis of portals 17 made of pile, with transition plates (not shown).

Piles (not shown) of the Foundation portals 17 are made of injection, cementogenesis.

The casing 2 includes blocking 19 wall 20 and the tray 21, and the thickness of the slab 19, the walls 20 and the tray 21 of the tunnel are related as 1:(0,7...1,2):(0,5...0,9), the diameter of the pile 16 is 600...1000 mm at a length of 10...16 m, and the diameter of the elements 4 of the screen is 800 to 1400 mm

With one inner side of the tunnel 1 is formed utility track (not shown), and on the other side of the sidewalk (not shown).

Road clothing tunnel 1 is made of consecutive bottom-up layers 22 claydite-concrete, porous asphalt layer 23 and a dense asphalt concrete with 24 surface obrabotka is.

Road clothing official track made of consecutive bottom-up layers of gravel 25 with a layer of foam 26, the layer of cement-sand mixture 27 and tiles cover 28.

Road clothing sidewalk made of consecutive bottom-up layers of gravel 25 with a layer of foam 26, mortar screed 29, cement-sand mixture 27 and tiles cover 28.

1. The tunnel, constructed in soft soils, with precast-monolithic lining, comprising forming a perforated screen in the ground hollow metal elements, combined locks, load bearing frame and the concrete poured,characterized in that,at least part of the perforated hollow in the ground metal elements of the screen is made with a constant outer diameter and at least part of their length elements made of different size along the length of the sections, the length of which decreases in the direction opposite to the direction of thrust.

2. The tunnel according to claim 1, characterized in that the hollow metallic screen elements are made with a closed or open cross-sectional configuration, including metal pipes, mainly kropiewnicki, including rolling, and/or welded and/or cold and/or solder along the seam, and/or seamless, and/or spirally.

3. The tone of the spruce according to any one of paragraphs. 1 and 2, characterized in that the cavity of the elements of the screen filled with hardening material.

4. The tunnel under item 3, characterized in that the cavity of the elements of the screen is filled with concrete or polymer concrete.

5. The tunnel according to any one of paragraphs. 3 and 4, characterized in that the filling of the cavities of the screen elements are made with reinforcement.

6. The tunnel under item 5, characterized in that the reinforcement cavities screen elements made frames, and/or rods and/or nets, and/or with the inclusion of rolled sections and/or with the use of beam structures is a type of flat or spatial farms.

7. The tunnel according to any one of paragraphs. 2-7, characterized in that at least part of the surfaces of the screen elements are made with a protective coating.

8. The tunnel according to any one of paragraphs. 1-7, characterized in that the hollow metal elements of the screen carrying frame and the concrete poured to form together a single composite spatial system.

9. The tunnel according to any one of paragraphs. 1-8, characterized in that the supporting frame is made single-span or multi-span with posts and beams made in the form of closed or open, and/or the combined profile of rolled and/or bent and/or welded and/or tubular elements.

10. The tunnel according to any one of paragraphs. 2-9, characterized in that the interlocking connection of the hollow metal e the cops screen made in the form of forming a lock, welded to facing each other, the adjacent surfaces of the metal elements of the screen are two extended locking elements, one of which is made of C-shaped in cross-section, and the other is made in the form of a wound in his wall with located on the free edge of the broadening width greater than the width of the cross-section of a C-shaped cross section with a locking element.

11. The tunnel according to any one of paragraphs. 2-9, characterized in that the interlocking connection of the hollow metallic screen elements made in the form of lock forming, welded to facing each other, the surfaces of adjacent elements of the screen are two extended locking elements, which one of the adjacent elements of the screen is made of C-shaped in cross section and the other in the form of exciting in a C-shaped locking elements of the walls located on the free edge of each wall by widening a width greater than the width of cross-sections C-shaped in cross-section of the locking elements.

12. The tunnel according to any one of paragraphs. 1-11, characterized in that it is made with pile Foundation pile which is made of injection.

13. The tunnel under item 12, characterized in that the perforated hollow in the ground metal screen elements are located around the perimeter of the tunnel with the formation of a protective screen, part of the flume which together with the items bearing the am, the pile Foundation pile Foundation and reinforced concrete monolithic and/or prefabricated elements of the tray forms part of the flume lining.

14. The tunnel according to any one of paragraphs. 1-13, characterized in that it is made with portals, with a retaining wall of variable height and protective screen located in the grounds of the portals and at least part of the height and length adjacent to the base of the retaining wall, and a protective shield made of a depression in the ground, hollow metal elements, the cavity of which is filled by reinforced concrete.

15. The tunnel under item 14, characterized in that the base of portals made pile with transition plates.

16. The tunnel under item 15, characterized in that the pile Foundation of portals made of injection, cementogenesis.

17. The tunnel according to any one of paragraphs. 2-16, wherein the lining includes a ceiling wall and the tray, and the thickness of slabs, walls and tray tunnel are related as 1 : (0,7...1,2) : (0,5...0,9), the diameter of the piles is 600...1000mmat a length of 10...16 m, and the diameter of the screen elements - 800 1400...mm

18. The tunnel according to any one of paragraphs. 1-17, characterized in that one of its inner side formed utility track, and on the other side of the sidewalk.

19. The tunnel according to any one of paragraphs. 1-18, characterized in that road clothing tunnel made of sequentially located the x bottom-up layers of claydite-concrete, porous asphalt and a layer of dense asphalt concrete with a surface treatment.

20. The tunnel under item 18, characterized in that road clothing official track made of consecutive bottom-up layers of gravel with a layer of polystyrene foam, the layer of cement-sand mixture and tile flooring.

21. The tunnel under item 18, characterized in that the road wear of the pavement is made of consecutive bottom-up layers of gravel with a layer of polystyrene foam, mortar screed, cement-sand mixture and tile flooring.



 

Same patents:

FIELD: construction.

SUBSTANCE: method includes continuous feeding of electric power having appropriate frequency and voltage to consumers due to maintenance operations, and also launching new areas of network into operation, while at least one of constructed network areas is driven in soil or in body of existing embankment by micro-tunneling by means of serial pressing in soil with concurrent feeding of special solution of at least two hollow concrete sections, connected to each other and to network with pressing, each section being made with open end portions, one of which is made on outer side with open circular groove at end portion, wherein metallic ring is mounted, projecting behind end piece, having thickness no greater than groove depth, hollow of which together with inner hollow of end portion of section forms shelf-like cone, and other end portion of section is made stepped and narrowing towards end with forming of bushing portion with one shelf for ring of adjacent section cone and no less, than with one shelf for ring compacting insert of soft pressurizing gas and water impermeable material, tightly clinging by one side to shelf surface, and by other side - to inner surface of ring, while shelves of bushing portion are made within limits of outward-directed half of thickness of section wall. After pressing through all sections of reconstructed network portion, free ends of end sections are attached to existing network.

EFFECT: lower laboriousness, lower costs, higher reliability and durability.

8 cl, 16 dwg

FIELD: construction.

SUBSTANCE: method includes cleaning pipes and wells and further maintenance while providing for continuous draining of sewage by liquidating breakdowns, liquidating random obstructions, and also launching new areas of network into operation, while at least one constructed network area is driven though soil or body of existing embankment by, micro-tunneling by means of serial pressing through in soil with concurrent feeding of special solution, at least two hollow concrete sections connected with pressing, each of which is made with end portions open at ends, one of which is made on outer side with ring-shaped groove open from end portion, wherein metallic ring is mounted projecting beyond section end, with thickness not greater than groove depth, hollow of which together with inner hollow of end portion of section forms shelf-like cone, and other end portion of section is made stepped and narrowing towards end with forming of bushing portion with one shelf for ring of adjacent section cone and no less than with one shelf for ring compacting insert made of soft pressurizing gas and water impermeable material, tightly clinging by one side to surface of shelf, and by other - to inner surface of ring, while shelves of bushing portion are made within limits of section wall half thickness, which half is directed outwards. After pressing through all sections of reconstructed network portion free ends of end sections are connected to existing network.

EFFECT: higher reliability and durability, lower costs.

8 cl, 16 dwg

FIELD: construction.

SUBSTANCE: method includes making a mini-tunnel by serial pressing through, in soil with concurrent feeding of special solution, at least two hollow concrete sections connected with pressing, each of which is made with end portions open at ends, one of which is made on outer side with ring-shaped groove open from end portion, wherein metallic ring is mounted projecting beyond section end, with thickness not greater than groove depth, hollow of which together with inner hollow of end portion of section forms shelf-like cone, and other end portion of section is made stepped and narrowing towards end with forming of bushing portion with one shelf for ring of adjacent section cone and no less than with one shelf for ring compacting insert made of soft pressurizing gas and water impermeable material, tightly clinging by one side to surface of shelf, and by other - to inner surface of ring, while shelves of bushing portion are made within limits of section wall half thickness, which half is directed outwards. End portions of pipeline sections adjacent to mini-tunnel are made matching with adjacent mini-tunnel sections or transfer sections are used and/or inserts, while pipeline is connected to mini-tunnel after pressing through in soil and/or embankment of the last mini-tunnel section.

EFFECT: lower costs, higher reliability and durability.

8 cl, 16 dwg

Tunnel // 2250962

FIELD: building, particularly underground structures erected in difficult mining and geological conditions, namely in soft watered ground bedded under tunnel scoop and forming tunnel base.

SUBSTANCE: tunnel has composite lining including hollow metal members driven in ground and forming screen, load-bearing frames and grouting concrete. Metal members are connected one to another through interlocks. At least some of metal members have rigidity varying along length thereof and increasing in direction opposite to metal member driving direction. Metal members have constant outer diameters.

EFFECT: increased tunnel reliability and operational safety due to prevention of original ground deformation during tunnel building and operation; reduced ground settlement at base of tunnel built under motor road without traffic interruption, reduced building time, power and labor inputs, material consumption due to optimal material distribution along driven member in accordance with load distribution among member parts.

24 cl, 11 dwg

FIELD: mining industry.

SUBSTANCE: rotor is made in form of cylindrical body, on working surface of which cutter holders are radially placed, each of which is made in form of shaft, freely placed in cylindrical groove of rotor body. Along whole length of each cutter holder cutting elements are mounted with hard-alloy inserts. Between cutter holders cutting elements are placed, made in form of rectangular prisms with hard-alloy inserts.

EFFECT: higher efficiency.

3 dwg

FIELD: mining industry.

SUBSTANCE: method includes erection of wall, prior reinforcement of rock massif along extraction track by drilling longitudinal and slanting wells and forcing reinforcing cementing solutions into these wells, destruction and cleaning of rocks under protection of cementing cover, erection of permanent support, following reinforcement of contour-adjacent massif by cementation solutions through wells, drilled perpendicularly to mine axis. Draining wells are additionally drilled with delay through cementing layer having length greater than thickness of reinforced rocks zone, to form a draining layer around reinforced cover.

EFFECT: higher effectiveness.

2 cl, 4 dwg

FIELD: mining industry.

SUBSTANCE: device has two asynchronous electric engines, connected via reducers to drive sprockets of continuous traction chain, provided with plane carriages with their possible displacement along the guide, and hydraulic cylinders for displacing guide on pit-face. To windings of stators of first and second electric engines connected respectively are outputs of first and second frequency converters, inputs of which are connected to power grid and control inputs of which are connected respectively to outputs of first and second frequency adjusters. To frequency adjusters also connected are inputs of load detectors, to outputs of which load balancing block is connected, outputs of which are connected to inputs of first frequency adjuster. To inputs of both frequency adjusters output of load adjuster is connected, inputs of which are connected to load-setting block and load sensor for second engine. To output of second frequency converter connected are input of control block, other input of which is connected to signal block of base plant, and stator winding of third asynchronous engine, which via mechanical link is connected to first and second hydraulic pumps, having constant working volumes. Output of first hydraulic pump is connected to force hydro-main and input of second preventing hydraulic valve and to first inputs of two-position hydraulic distributors with electromagnetic control, to electromagnets of which outputs of control block are connected. Second inputs of two-positional hydraulic distributors with electromagnetic control are connected to control chambers of hydro-controlled two-positional hydro-distributors, which are part of hydro-blocks. Outputs of hydro-controlled two-positional distributors are connected to opposite hollows of volumetric dosing device of each hydro-block, and their inputs are connected respectively to outputs of hydro-distributors for controlling hydro-cylinder for moving the guide on pit-face, inputs of each of which are connected to force and drain hydro-mains, and outputs are connected to piston and rod hollows of appropriate hydro-cylinder.

EFFECT: higher efficiency.

1 dwg

FIELD: mining industry.

SUBSTANCE: method includes expanding guiding pipeline by extracting soil from around it by driving shield with rotor working implement. Soil is extracted to value, surpassing needed outer diameter of shield cover. Forming ring-shaped space inside tunnel mine is compacted from back side and continuously filled with liquid. Concurrently sedimentation of extracted soil is drained from lower portion of face. Displacement of driving equipment relatively to guiding pipeline is performed along soft trajectory. Device has means for driving guiding pipeline and driving shield with rotor working implement. Rotor working implement is mounted on body of driving shield. Front surface of working implement with cutters extends beyond outer contour of shield cover, provided with back end compaction. Device is provided with fluid pump device. Force hose of pump is outputted from upward portion beyond outer contour of shield cover. Device for transporting extracted soil from face is made in form of suck-in hose connected to pump device and to lower portion of ring space beyond rotor working implement.

EFFECT: lower transverse loads on guiding pipeline.

2 cl, 1 dwg

FIELD: mining industry.

SUBSTANCE: device has frontal, two side and two conical working tools with rock-destroying tools on outer surfaces, drives, rigidly connected to axes of each working tool, and displacement mechanism, connected to guides, placed at angle relatively to each other, which angle is determined from mathematical expression. Frontal and each of side working tools are made in form of two rotation bodies, having arced forming lines with given value of convexity. Axes of frontal working tool and axes of two conical working tools are rigidly connected to guides, axes of upper rotation body of frontal working tool being displaced relatively to axis of its lower rotation body towards pit-face, and axes of each pair of side working tools are jointly connected to each other and to guides. Frontal working tool may be made in form of several modules.

EFFECT: higher efficiency.

2 cl, 4 dwg

FIELD: construction.

SUBSTANCE: method includes continuous feeding of electric power having appropriate frequency and voltage to consumers due to maintenance operations, and also launching new areas of network into operation, while at least one of constructed network areas is driven in soil or in body of existing embankment by micro-tunneling by means of serial pressing in soil with concurrent feeding of special solution of at least two hollow concrete sections, connected to each other and to network with pressing, each section being made with open end portions, one of which is made on outer side with open circular groove at end portion, wherein metallic ring is mounted, projecting behind end piece, having thickness no greater than groove depth, hollow of which together with inner hollow of end portion of section forms shelf-like cone, and other end portion of section is made stepped and narrowing towards end with forming of bushing portion with one shelf for ring of adjacent section cone and no less, than with one shelf for ring compacting insert of soft pressurizing gas and water impermeable material, tightly clinging by one side to shelf surface, and by other side - to inner surface of ring, while shelves of bushing portion are made within limits of outward-directed half of thickness of section wall. After pressing through all sections of reconstructed network portion, free ends of end sections are attached to existing network.

EFFECT: lower laboriousness, lower costs, higher reliability and durability.

8 cl, 16 dwg

FIELD: construction.

SUBSTANCE: method includes cleaning pipes and wells and further maintenance while providing for continuous draining of sewage by liquidating breakdowns, liquidating random obstructions, and also launching new areas of network into operation, while at least one constructed network area is driven though soil or body of existing embankment by, micro-tunneling by means of serial pressing through in soil with concurrent feeding of special solution, at least two hollow concrete sections connected with pressing, each of which is made with end portions open at ends, one of which is made on outer side with ring-shaped groove open from end portion, wherein metallic ring is mounted projecting beyond section end, with thickness not greater than groove depth, hollow of which together with inner hollow of end portion of section forms shelf-like cone, and other end portion of section is made stepped and narrowing towards end with forming of bushing portion with one shelf for ring of adjacent section cone and no less than with one shelf for ring compacting insert made of soft pressurizing gas and water impermeable material, tightly clinging by one side to surface of shelf, and by other - to inner surface of ring, while shelves of bushing portion are made within limits of section wall half thickness, which half is directed outwards. After pressing through all sections of reconstructed network portion free ends of end sections are connected to existing network.

EFFECT: higher reliability and durability, lower costs.

8 cl, 16 dwg

FIELD: construction.

SUBSTANCE: method includes making a mini-tunnel by serial pressing through, in soil with concurrent feeding of special solution, at least two hollow concrete sections connected with pressing, each of which is made with end portions open at ends, one of which is made on outer side with ring-shaped groove open from end portion, wherein metallic ring is mounted projecting beyond section end, with thickness not greater than groove depth, hollow of which together with inner hollow of end portion of section forms shelf-like cone, and other end portion of section is made stepped and narrowing towards end with forming of bushing portion with one shelf for ring of adjacent section cone and no less than with one shelf for ring compacting insert made of soft pressurizing gas and water impermeable material, tightly clinging by one side to surface of shelf, and by other - to inner surface of ring, while shelves of bushing portion are made within limits of section wall half thickness, which half is directed outwards. End portions of pipeline sections adjacent to mini-tunnel are made matching with adjacent mini-tunnel sections or transfer sections are used and/or inserts, while pipeline is connected to mini-tunnel after pressing through in soil and/or embankment of the last mini-tunnel section.

EFFECT: lower costs, higher reliability and durability.

8 cl, 16 dwg

FIELD: building, particularly engineering structures adapted for protection of linear and separate installations, including motor roads and railroads, against rock sliding, rock sloughing and mudflows.

SUBSTANCE: retaining wall includes relaxation device, face and foundation slabs rigidly secured one to another. Foundation slab is anchored in foundation ground. Relaxation device is formed of reinforced concrete slabs arranged in two longitudinal rows and secured to face slab by springs with variable spring force so that reinforced concrete slabs extend at different angles to horizon line. Low row slabs have lesser angle of inclination. Face slab and low slab row are provided with through slots. Foundation plate has cylindrical base and connected to inclined anchor by means of damping device.

EFFECT: reduced building time and operational costs for accumulating cavity cleaning, reduced labor inputs.

2 dwg

FIELD: building, particularly disassembling means.

SUBSTANCE: system comprises disassembling cavity formed by cut-and-cover method and including a tray, transversal end solid walls including rear and front ones and longitudinal side solid walls. End walls have windows. Side walls have outer metal isolation formed of dividers and matched panels. Dividers form anti-filtering screen and have interlocks. Matched panels are conjoined with tray waterproofing means with forming watertight shell. Walls consist of monolithic inner reinforced concrete part, anti-filtering screen and outer protective concrete layer in wall thickness. All above components form a single structure. Outer protective layer fills depressions in dividers and matched panels. Each matched panel includes at least two elongated members having closed cross-section outline and connected one to another with at least one part secured in air-tight manner to members to be connected. The part extends along medium longitudinal panel plane or is parallel thereto and is continuous in length. Fixedly secured to members to be connected are additional connectors intermittently extending along panel length and located in longitudinal planes parallel to medium longitudinal panel plane and displaced in both directions from above plane for 0.1R - 1.0R distance, where R is distance from medium longitudinal panel plane to outermost point on panel surface measured in panel cross-section. Rear transversal wall of disassembling chamber is arranged in area of closed tunnel part abutment to chamber. Tunnel end part abutting disassembling chamber is located in concrete body previously built in ground. Concrete body has strength of 15-35% of that of end tunnel part lining. Concrete body length is not less than 1/3 of disassembling chamber length.

EFFECT: increased structure strength by cooperation of disassembling system and closed tunnel part built into soft ground including watered ground, possibility of optimal material distribution in correspondence with load on tunnel parts, increased strength in tunnel end part, providing of tunneling machine accurate and stable position in disassembling tunnel chamber, prevention of deformation in above tunnel part and as result prevention of deformation of buildings and installations located near tunnel building site.

22 cl, 24 dwg

Tunnel // 2250962

FIELD: building, particularly underground structures erected in difficult mining and geological conditions, namely in soft watered ground bedded under tunnel scoop and forming tunnel base.

SUBSTANCE: tunnel has composite lining including hollow metal members driven in ground and forming screen, load-bearing frames and grouting concrete. Metal members are connected one to another through interlocks. At least some of metal members have rigidity varying along length thereof and increasing in direction opposite to metal member driving direction. Metal members have constant outer diameters.

EFFECT: increased tunnel reliability and operational safety due to prevention of original ground deformation during tunnel building and operation; reduced ground settlement at base of tunnel built under motor road without traffic interruption, reduced building time, power and labor inputs, material consumption due to optimal material distribution along driven member in accordance with load distribution among member parts.

24 cl, 11 dwg

FIELD: building, namely underground structure erection, particularly for building multipurpose pipelines under acting roads without traffic interruption and in difficult mining and geological conditions and in presence of watered tunnel base ground.

SUBSTANCE: method involves forming minitunnel by successive driving hollow reinforced concrete sections in ground and/or embankment along with simultaneous supplying thixotropic mix; connecting above sections one to another and to neighboring pipeline sections during driving thereof. Pipeline sections have opened end parts. One end part has annular grove opened from section end for receiving metal shell extending out of the section end and having thickness of not more than groove depth. Shell and end section part form stepped funnel. The second section end part tapers in stepwise manner to end thereof to form bush part having one step for shell of neighboring section receiving. The second section end part is provided at least with one step for gasket. Gasket is made of pliable sealing gas-and waterproof material and bearing against step surface by one gasket side and against inner shell surface by another side thereof. Steps of bush part are formed within half of thickness of section wall facing outwards, wherein neighboring sections are located so that gaps are formed between ends thereof. Compression ring and additional gasket abutting compression ring are installed in above gap. Additional gasket is made of pliable gas- and waterproof material and bears against inner shell surface by outer ring side and to neighboring section ends by end surface thereof. Length of bush part exceeds that of adjoining part of metal shell. End parts of pipeline sections adjacent to minitunnel mate neighboring end parts of minitunnel or adapter and/or inserted sections are used for pipeline and minitunnel connection. Pipeline is connected to minitunnel after driving the last pipeline section.

EFFECT: reduced material consumption, labor inputs and time required for pipeline laying; increased service life and economy.

8 cl, 16 dwg

FIELD: building, particularly for slope consolidation and for stabilizing deep front landslide areas.

SUBSTANCE: structure includes foundation mat and piles formed in wells grouped in rows. Upper pile parts are embedded in foundation mat, lower one is restrained by not-sliding ground layers. Piles are composite along their lengths. Central pile parts are not filled with concrete. Heights of upper and lower pile parts decrease towards landslide head. Structure to prevent deep front land-slides comprises separate local pile groups connected by foundation mats and located within landslide body boundaries. Each foundation mat has tension bars anchored in stable slope layers and arranged under and above foundation mat along slope to retain thereof against displacement and rotation.

EFFECT: improved slope stability, increased operational reliability of structure built on wide landslides, reduced building time and material consumption.

2 dwg

FIELD: building, particularly underground or underwater structures.

SUBSTANCE: method involves building foundation; heating thereof before pouring concrete mix and performing concreting cast-in-place blocks by pouring concrete mix having different temperature along structure height; vibrating concrete mix; covering structure surfaces not enclosed by form with water-impermeable and heat-insulating material and curing thereof in form up to obtaining necessary concrete strength. Foundation is formed of piles arranged along tunnel wall axes. Foundation is heated up to 5 - 20oC. Concreting of members supported by wall piles is performed by filling form with concrete mix under temperature of 20 - 30oC up to level located at height exceeding height of wall component with 4 m-1 surface modulus by 500 mm. Remaining wall and floor structure parts are filled with reinforced concrete mix under 10 - 20oC temperature. Concrete of outer pile foundation area having 600 - 800 mm height measured from contact line with concrete mix is heated up to obtaining 0.28 - 0.3 R28 concrete strength. Form material and covering material have thermal resistance of 0.2 - 0.3 (m2·deg)/W. Form for forming wall components having 4 m-1 surface modulus are coated starting from bottom by material having thermal resistance of 0.2 - 0.5 (m2·deg)/W to improve warmth-keeping thereof. Height of form to be covered and concreting block height are determined from given formulae.

EFFECT: improved crack-resistance; increased erection rate due to increasing admissible dimensions of blocks to be concreted.

3 dwg, 1 ex

FIELD: building, particularly erection of all-purpose underground structures having deep foundation pit of irregular shape.

SUBSTANCE: method involves building enclosing walls, two-stage foundation pit excavation, wherein the first stage includes anchoring of enclosing walls with cross-pieces; and assembling frame. Additionally installed within contour defined by enclosing walls is sheet-pile enclosure. Cross-pieces are arranged between enclosing walls and sheet-pile enclosure. The first stage of foundation pit excavation is performed in thrust support between enclosing walls and sheet-pile enclosure and then contour frame members are mounted in developed pit area. The second stage of foundation pit excavation includes developing inner pit part after which frame erection is completed.

EFFECT: improved structure stability, reduced labor inputs, material consumption and increased reliability.

4 cl, 2 dwg

FIELD: hydraulic structures, particularly for laying underwater pipelines.

SUBSTANCE: method involves transporting pipeline tunnel sections by water to pipeline laying site; submerging thereof; placing pipeline tunnel sections on underwater piers with the use of flexible ties; sealing pipeline tunnel sections. Tunnel sections have nearly zero floatability. Pipeline tunnel sections are submerged and put on piers by flexible ties. Then pipeline tunnel sections are pushed in docking unit of previous submerged section with the use of submarine and sealed from inside and outside along with connection of inner service lines. After finishing pipeline tunnel sections assemblage entry and exit tunnels are secured to pipeline tunnel. System for underwater pipeline tunnel sections assembling includes underwater pipeline tunnel mounted on underwater piers and formed of separate sections having design lengths. Pipeline tunnel sections are divided into two chambers by horizontal partition. Transport path is arranged in upper chamber. Lower section is divided into several cavities by air-tight partitions for laying inner pipelines. Underwater pipeline tunnel sections are formed of two thick-walled shells of steel plates or titanium alloy. Longitudinal partitions are mounted between shells and secured along perimeter thereof. Longitudinal partitions serve as pipelines and stiffening ribs. Pipeline tunnel sections are laid on underwater permanent and temporary piers. Upper pier parts have bases of semicircular or parabolic shape. Pier part dimensions exceed that of pipeline tunnel sections.

EFFECT: increased efficiency of pipeline laying and maintenance during multi-purpose usage thereof.

5 cl, 6 dwg

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