Underground facility lining

FIELD: construction.

SUBSTANCE: underground facility lining has a spatial reinforced woven frame corresponding to an underground facility contour and concrete. At the same time the spatial reinforced woven frame comprises closed external and internal contours connected to each other by two external circular elements. Besides, the frame also comprises internal solid partitions forming tight chambers, where internal partitions with arranged holes are located. Tight chambers are equipped with valves connected to the inside of the underground facility. Besides, for each tight chamber one valve is installed for filling with air, and the other one - for its filling with concrete. The spatial reinforced woven frame may be arranged from a waterproof high-strength fabric reinforced with aramide fibres.

EFFECT: increased load-carrying capacity and reliability of tunnel walls reinforcement.

2 cl, 4 dwg

 

The invention relates to transportation construction and can be used during the construction of the tunnel lining tunnels and underground tunnels.

Famous tunnel lining, consisting of precast concrete elements coated steel sheet and United by means of bolts (Japan's bid 303959, E21D 11/14, E21D 11/15, 1989) the disadvantages of known construction can be attributed to lack of waterproofing and complexity of the detection and elimination of leaks that occur during operation, which complicates its use in flooded soils.

Well-known lining of the underground structure of emometalband containing internal metallically with ribs and concrete. The blocks are made of atualizando along the radius of the sheet with the ribs, projecting beyond its ends, and supporting elements in the form of transverse strips placed along the block with a uniform pitch and connected to the ribs vertical plates (EN 2114376, C1 F41H 11/00, op. 27.06.1998,) This device has a major drawback: the design aromatology practically applicable to a limited number of underground facilities (mainly for underground fortification objects exposed to mechanical stress in the near zone of a nuclear explosion). Design aromatology seems unacceptable gesture is Oh with anchors, doesn't exist in the compressed area, that is a structure containing fragile destructible connection. So this aromaterapia cannot be recommended for widespread use in the practice of underground construction.

Known for lining underground structures (EN 2378456, C1 E02D 29/045, op. 10.01.2010 year). The lining of the underground structure of emometalband contains internal metallically with ribs and concrete. Thus aromatology made in the form of rectangular parallelepipeds, consisting of sheet metal welded thereto rods working rebar length is 20 mm less than the length of sheet metal and stiffeners in the form of two or more truss metal truss, the top of the upper zones which are located in the same plane, and the wire mesh made of longitudinal reinforcing bars number equal to twice the number of farms, and transverse reinforcing rods in increments of step cross stay farms. And the top of the upper chords are anchor fasteners on them wire mesh and are arranged so that the metal sheet, welded to it, the rods of the working armature, farm diagonal and longitudinal bar reinforcement mesh, mounted on the tops of the upper chords, form the lower and upper diaphragm vertical jetcost is aromatology, transverse reinforcement mesh forms the upper aperture horizontal stiffness, and sheet metal - the lower the aperture, the length of the longitudinal rods of the grid exceeds the length of sheet metal on each side by the value 1, and educated editions of longitudinal rods are curved on a radius equal to the distance between the metal sheet and wire mesh h, and with one hand no less than one half placed in a tubular sleeve length 10-20 diameters of rebar, bent at the knee on the same radius as the longitudinal reinforcing bars, with the average length of the holes for the Gulf rapid hardening cement-sand mortar and is supplied with fixing bolts and cross wires of the wire mesh, the length of each side equal to the width of the metal sheet, with one side not less than half placed in a straight tubular sleeve, supplied with fixing bolts and holes similar to the knuckle of the sleeves, and the excess length of the longitudinal rods of the grid over the length of the metal sheet 1 is determined by the formula

l=h·sin(α/2),

where α is the angle at which the mate between the neighbor aromatology.

Also known tunnel lining (EN 2202681, C2 E02D 29/00, op. 20.04.2003,)

Tunnel lining includes outer and inner enclosures. In sesarmid them placed a layer of waterproofing material. As a waterproofing material used liquid inorganic material, in which the internal pressure exceeds the value of the external hydrostatic pressure. Density waterproofing material exceeds the density of water, and in the gap between the building envelope, which is made of precast and/or cast iron rings, set of fixing the armature frame and rigidly connected to the outer and inner walling of the annular wall separating the gap on the sealed compartments and partitions are supplied with valves and nozzles, bred inside the tunnel.

The disadvantages of the considered devices is the relative low efficiency due to the complexity of their designs of metal and installation complexity of construction.

The objective of the invention is the creation of the lining of underground facilities, which will reduce transportation costs, and installation, to expand the scope of its application.

The technical result of the invention is to increase efficiency by expanding the scope of its application in water-saturated soils, in terms of seismic activity, as well as by simplifying the design and reducing its metal consumption while providing high load capacity and n is secure.

The technical result of the invention is achieved by the fact that the lining of the underground structure has a spatial asmoday frame corresponding to the shape of underground structures, and concrete. Spatial asmoday frame contains a closed outer and inner contours, interconnected by two external annular elements, the internal solid walls forming a sealed chamber in which are located the inner walls with holes. The sealed chamber provided with valves bred inside underground structures, and for each sealed chamber one-way valve installed to fill the air, and the other valve to fill it with concrete.

Spatial asmoday the frame is made from waterproof high strength fabric reinforced with aramid fibers.

Specified a new set of essential features necessary and sufficient to achieve the technical result that allows the use of the lining of the underground structures in water-saturated soils and in terms of seismic activity. The design of the lining of underground structures easier, and its intensity is reduced to zero, because metal is not used.

The invention is illustrated by drawings:

figure 1 is a view of the lining of underground construction in AK is hometree;

Fig 2 is a General view of the lining of underground structures;

Fig 3 is a cross section along a - a;

Fig 4 is a view of the sealed chamber.

The lining of the underground structure has a spatial asmoday frame, which includes a closed external circuit 1 and the internal circuit 2 connected between the two external ring elements 3, the internal solid walls 4 forming the sealed chamber 5. Inside the sealed chambers 5 are internal partitions 6 with holes. These partitions function as reinforcing elements. The sealed chamber 5 provided with valves 7 and 8, bred inside underground structures. For each sealed chamber 5 is equipped with two valves. One-way valve 7 is installed to fill the air, another valve 8 is set to fill the sealed chamber concrete 9. The number of sealed chambers defined by the formula:

where N is an integer of cameras (including the rounding rules);

R is the radius of outer closed loop in meters.

The number of internal solid walls 4 corresponds to the number of sealed chambers 5, and the number of internal holes of the partitions 6 are determined by calculation(constructively). Material Romodanovo frame selected with consideration of the conditions of his work. Asmoday the frame is made from topproducermag high-strength fabric, reinforced with aramid fibers. Asmoday frame sewn in the factory, connecting structural elements according to one well-known technologies: stitching threads, gluing, welding.

The mounting Assembly lining of underground structures is as follows. Asmoday frame, which includes a closed external circuit 1 and the internal circuit 2, rolled into a roll for transportation, delivered to the site of erection of the lining. With the help of an air compressor (not shown) serves the compressed air through the valve 7 in the sealed chamber 5 to give armedana frame containing a closed external circuit 1 and the internal circuit 2, the shape corresponding to the shape of underground structures. Inside the sealed chambers 5 are internal partitions 6 with holes. These partitions function as reinforcing elements. At the same time control the pressure in each sealed chamber 5 to an acceptable level. Then from the bottom up fill with concrete through the valves 8 sealed chamber 5. At the same time air pressure in each sealed chamber 5 release through the valve 7.

The use of the present invention will significantly reduce the labor costs of transport to place of installation, as asmoday which the frame can be collapsed into a roll, that greatly facilitates its delivery. Reduced costs for manufacturing and Assembly, as well as metal is not used, which reduces the intensity to zero.

1. Lining underground structures, characterized by the fact that it has a spatial asmoday frame corresponding to the shape of underground structures, and concrete spatial asmoday frame contains a closed outer and inner contours, interconnected by two external annular elements, the internal solid walls forming a sealed chamber in which are located the inner walls with holes, additionally, the sealed chamber, provided with valves bred inside underground structures, and for each sealed chamber one-way valve installed to fill the air, and the other valve to fill it with concrete.

2. Lining for underground structures according to claim 1, characterized in that the spatial asmoday the frame is made from waterproof high strength fabric reinforced with aramid fibers.



 

Same patents:

FIELD: mining.

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The invention relates to underground construction and can be used in the construction of tunnels and shafts

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FIELD: construction.

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FIELD: construction, road engineering.

SUBSTANCE: invention is related to construction of tunnels and may be used in creation of earthquake-proof tunnel design. Earthquake-proof tunnel consists of rigidly fixed metal and elastic, for instance, rubber, elements installed one after another, at that elastic elements are made of two types: autonomous longitudinal rectangular in shape, equal in length to metal element and in width also equal to width of metal element with symmetrically arranged holes in number equal to number of fixtures in metal elements of tunnel and round in external diametre equal to external diametre of tunnel and by thickness that makes 1.618 of metal element end height and holes with identical pitch, which are located in transverse plane and along axis of elastic element symmetry and in number equal to number of fixtures installed in metal elements of tunnel. At the middle of every half-wave of average length of earthquakes wave observed in this area, under their maximums compensators are installed, which consist of elastic material with length of 1.618 Lm, where Lm is longitudinal size of metal element arranged in the form of ring with symmetrically installed holes in its ends with identical pitch at ring end surface, and two springs are installed inside these holes: one compression spring of the largest diametre, and inside of it - tension spring with two horizontal threaded ends fixed by nuts on opposite ends of tunnel metal elements with a close fit. Similar springs are installed also in holes of autonomous longitudinal rectangular elastic elements.

EFFECT: increased strength and reliability of tunnel during earthquakes.

4 dwg

FIELD: road construction industry.

SUBSTANCE: invention refers to underground excavations and can be used for big-section transport tunneling under railway embankments as well as for conduit pipes' construction under railway embankments. Method of tunnel piercing under railway embankment includes boring of a number of wells along the outline of tunnel being constructed with subsequent concreting and soil removal from outline resulted from boring process. Wells are bored step by step in horizontal plane, with portal frames with conductor guides preinstalled on two sides of embankment slopes along their external outline. Leading small well is bored by means of determining boring direction by hole provided in conductor. After the leading well is bored, end of small boring tool is hinged to end of big boring tool arranged in casing pipe. Big boring tool moves in leading well behind small boring tool together with casing pipe, which is installed in well after boring is completed, and boring tools are removed. After required number of casing pipes is installed along outline of portal frames, soil is removed from their cavity and they are filled with concrete mix. Soil is removed from outline formed by continuous rows of casing pipes along the whole section and throughout the length of tunnel.

EFFECT: reduction of risk of integrity damage, protection of railway embankment from deformations and breakage without road traffic stop when piercing a tunnel.

2 dwg

FIELD: building, particularly to erect building structures in permafrost areas and thick snow cover.

SUBSTANCE: tunnel comprises trench in which load-bearing enclosing structure partly submersed in ground below natural ground surface is arranged. The enclosing structure defines space for transport passage structure location. Tunnel built in permafrost ground comprises longitudinal embankment having axis coinciding with longitudinal tunnel axis and defining combination of trapeze and triangle located above trapeze in cross-section. Triangle base coincides with upper trapeze base. Above load-bearing enclosing structure is arranged within the bounds of longitudinal embankment and back-filling ground below natural ground surface and may partly project over the embankment and back-filling ground. Nonfrost-susceptible ground layer is arranged under the passage structure. Total height of the nonfrost-susceptible ground layer between passage structure bottom and lower trench surface is to be not less than season thawing depth. Width B thereof is determined along trench top. Trapeze height ht, maximal ground embankment height he along passage structure axis, upper trapeze base width Bu, total ground embankment width Be are determined from given correlations.

EFFECT: reduced costs of motor road and rail road erection in permafrost ground and increased ability of ground retaining in permafrost condition.

3 cl, 2 dwg

FIELD: building, particularly to erect building structures in permafrost areas and thick snow cover.

SUBSTANCE: tunnel comprises trench in which load-bearing enclosing structure partly submersed in ground below natural ground surface is arranged. The enclosing structure defines space for transport passage structure location. Nonfrost-susceptible ground layer is arranged under the passage structure. Total height of the nonfrost-susceptible ground layer between passage structure bottom and lower trench surface is to be not less than season thawing depth. Ground prism is created above natural ground surface having axis coinciding with tunnel axis. Width B of ground prism determined along trench top, ground prism width Bp, ground prism height he at edges thereof and ground prism height ha along structure axis are determined from given correlations.

EFFECT: reduced costs of motor road and rail road erection in permafrost ground and increased ability of ground retaining in permafrost condition.

2 cl, 2 dwg

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: 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

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