Tunnel construction method and device

FIELD: mining industry and construction, particularly to construct multipurpose tunnels, and tunneling rigs.

SUBSTANCE: method involves successive tunneling tunnel having variable cross-section and demounting tunneling rig. In going from tunnel section having one cross-section to that having another one the tunneling machine is reset by replacing tunnel profile forming members thereof in mounting chamber constructed in end of the first tunnel section so that the number of above members is constant. The rig comprises load-bearing body with air-tight membrane. Fastened to the body are shield shell composed of head and rear parts, shield hydraulic cylinders, cutting edge and multi-axis executive tool with driving modules. Executive tool housing is made as skeleton grid with rock cutting and mixing members. The grid is arranged in front of geometric diaphragm and is connected to outlet shafts of driving modules by means of crankshafts. Means for transporting cut rock from tunnel face and means for tunnel lining laying are arranged inside the shield shell. The rig has additional system comprising head and rear parts of shield shell, removable cutting edge and skeleton grid having outer cross-sectional outline different from that of similar primary members. Head part of sheet shield is composed of figured covering members in transversal cross-section. The covering members are fastened to load-bearing body along tunnel excavation contour.

EFFECT: possibility to construct tunnel having variable profile.

2 cl, 4 dwg

 

The proposed group of inventions relates to the field of mining and construction and can be used in the construction of tunnels for different purposes /in particular, communication, sewage and waste reservoirs of various shapes and sizes in cross section and in the manufacture of tunnel boring machine units.

The need to increase bandwidth tunnel collectors in dense urban areas, requiring minimal impact on the environment, forcing the builders and designers to replace the traditional round cross-sectional shape of output, for example, oval, ovoid, rectangular or horseshoe-shaped, while maintaining the minimum impact on the environment with sinking output.

In addition, sometimes there is a need for consistent drilling several tunnels of different cross-sectional shape or a separate profile of the tunnel.

The above requirements are met by modern technical developments with the use of shield tunneling units equipped with the working body, which allows the development of the face of the underground workings of a non-circular cross-section.

Famous tunnel Assembly that includes a bearing body on which are mounted itova shell, having a form similar to triangular, with blade ring, the power cylinders located inside of the shield shell rock-working body of the selective action and belt conveyor for shipment from the bottom of destroyed rock /see, for example, patent RF №2209978; IPC7E 21 D 9/00, published. 10.08.2003,/.

As disadvantages of this unit are its low productivity and the need for the presence of staff in the critical zone in connection with the use of rock cutting and transporting organs of the specified type, as well as a very narrow field of application covered by the receipt develop only one set of profile.

A known method of construction of the various tunnels, including sequential driving along a given road tunnels with different cross-sectional shape /station and tunnels metro/ double-tunneling unit, consisting of two functionally independent machines with their formative elements in the form of a shield shells, while the driving of the first tunnel a larger cross-section are performed simultaneously on both machines, the driving of the tunnel, the second tunnel of smaller size, and other forms of exercise with one of these machines when the output from another machine and, after vetelino, with change of the number involved in the process of molding elements /see, for example, Japan patent No. 2000002078, IPC E 21 D 9/06, published. 07.01.2000,/. This solution is the closest analogue of the claimed method from the point of view of the solved task.

The main disadvantage of the above method is that it is not possible to change on the highway tunnel strictly defined cross-sectional shape of the underground workings. If necessary, the tunneling other form you want to use any other means of penetration without the participation of the specified double unit.

Also known tunnel Assembly that includes a bearing housing with a sealed diaphragm, which is fixed to shield shell, consisting of head and tail parts, panel hydraulic, knife ring and multi-axis working body with drive modules, the body of which is made in the form of a frame grille with rock cutting and mixing elements placed in front of a sealed aperture and connected with the output shaft of the drive modules by means of cranks, and installed inside the shield shell unit length of the ship from the bottom of destroyed rock and stacker tunnel lining /see, for example, Japan patent No. 2000002078, IPC E 21 D 9/06, published. 07.01.2000,/. This unit is the most the closest analogue of the claimed device.

The main drawback of this unit is that it allows to obtain the production of only one cross-sectional shape. In the case of the need of tunneling with various sections or other tunnel other form completely replace applied the first part of the unit with a new one.

The objective of the proposed group of inventions is a method of construction of tunnels and device for its implementation, ensuring sequential tunneling with different cross-sectional shape as separate parts of one given track and the other tracks constructed tunnels while maintaining the basic design used tunnel Assembly.

The problem is solved in that in the method of construction of tunnels, including the installation of this unit with forming elements, the sequential tunneling of different cross-sectional shape and the dismantling of the tunnel unit according to the invention in the transition from the tunneling of one form of the cross section of the tunnel excavation other form, produce the changeover tunneling unit by replacing in the mounting chamber, built at the end of the first tunnel section, its formative elements at a constant number of them.

The problem is solved t is m, that tunnel Assembly that includes a bearing housing with a sealed diaphragm, which is fixed to shield shell, consisting of head and tail parts, panel hydraulic, knife ring and multi-axis working body with drive modules, the body of which is made in the form of a frame grille with rock cutting and mixing elements placed in front of a sealed aperture and connected with the output shaft of the drive modules by means of cranks, and installed inside the shield shell of the device for shipment from the bottom of destroyed rock and stacker tunnel lining according to the invention, equipped with an additional set of tail andthe head parts of the shield shell, the knife ring and frame grille, the outer contour of which in cross section has a different contour similar to the primary elements with the knife ring is made removable, the head part of the shield shell made of composite cross-section of shaped plates secured to the support body unit generation circuit constructed of the tunnel.

The essence of the proposed group of inventions, as well as the above-noted features and advantages of these technical solutions in comparison with the known analogues will become more clear and apparent from the following description of the use of the and of their performance with reference to the drawings, showing:

Figure 1 is a General schematic view in partial longitudinal section of the unit for sinking a multi tunnel.

Figure 2 is a view along arrow a in figure 1 with the image of the multi-axis tool and cutter ring Assembly for tunneling round cross-section.

Figure 3 is a view in transverse section B-B in figure 1, depicting the placement figured overlays the head part of the shield shell to the support housing Assembly for drilling a tunnel of rectangular cross-section.

Figure 4 - same as figure 3, but in the aggregate for the tunneling round cross-section.

According to the information provided in this option the proposed group of inventions is used when tunneling with lots of round and rectangular cross-section.

This unit contains the bearing body 1 is sealed by the diaphragm 2. On the front face of the sealed diaphragm 2 with bolted connections /on the drawings shows the relative/ fixed removable knife ring 3. From the backside, sealed diaphragm 2 is fixed shield shell from the head 4 and rear 5 parts. The head part 4 of the shield shell made of composite cross-section of the curved plates 6, is hosted on the host body 1 of the unit so that its outer contour corresponds to the contour generation constructed tunnel. In this case, the bearing housing 1 is fixed to four pads, the outer contour of which is to collect the first part of the constructed tunnel is a circle.

On a sealed diaphragm 2 mounted drive modules 7 multi-axis working body 8 in such a way that their output shafts 9 are in front of the front face of the diaphragm sealed diaphragm 2 and are fixedly mounted cranks 10.

The housing of the working body in the form of a frame grid 11, pivotally connected with the free ends of the cranks 10. On the front face of the frame grating 11 is fixed Portorosa elements in the form of cutters 12 and on the back - mixing elements in the form of blades 13.

The above frame bars 11 of the working body, knife ring 3 and the shield shell of the head 4 and rear 5 parts are formative elements of this unit.

For sinking the second tunnel having a rectangular cross section, the unit is equipped with additional formative elements, the outer contour of which in cross section similar to the shape of the second section of the tunnel, i.e. is a rectangle.

Inside the shield shell of the device for shipment from the face destroyed and ground working body 8 of the breed made in this case in the de screw conveyor 14, the front end of which is passed through the aperture of the sealing diaphragm 2 in the lower part of the bottom space. On to the screw conveyor 14 is mounted stacker 15 tunnel lining 16.

From the back side of the diaphragm sealed diaphragm 2 on the bearing housing 1 fixed panel hydraulic cylinders 17 with thrust pads 18. Aperture sealed aperture 2 is equipped with gateway shutter 19.

It should be noted that presented here the basic design of shield tunnel Assembly similar to traditional well-known designs, which do not allow to dismantle conventional one-piece head part of the shield shell without removing the main structural elements of the bearing housing and powertrains in the cramped conditions of underground tunnels.

The construction of the tunnel begin with the construction on the track input and output pits /not shown/.

After assembling this unit in the input excavation include in the work drive modules 7, resulting in a frame bars 11 of the working body together with rock-12 and mixing 13 elements makes the plane-parallel motion relative to the anterior wall of the entrance of the pit. At the same time turn the screw conveyor 14 and provide a longitudinal flow of the working body 8 by application to the ass is it the end of the tail part 5 of the shield shell from jacking installation /not shown/ in the entrance pit. In the processing of the breast bottom throughout its area with the destruction of the breed and the last shipment of slaughter.

After the introduction of aggregate in the production of round shape by an amount equal to its length, using the stacker 15 collect ring tunnel lining 16 inside the rear part 5 of the shield shell.

Then carry out further destruction of rocks in the bottom, but when the longitudinal feed unit with shield cylinders 17, when the extension rod which shoes 18 rest against the front face of the lining 16.

At the end of the first tunnel section with a circular cross section construct mounting the camera /not shown/that derive tunnel unit and in which the changeover last for sinking the second leg of the tunnel of rectangular cross-section.

The changeover unit is carried out by replacing the primary formative element of his design /knife ring 3, the frame bars 11 of the working body, the tail part 5 of the shield shell and the head part 4 of the shell in the form of a series of curved plates 6/ round cross-sectional shape for extra similar massing rectangular after Assembly outlines, leaving unchanged the number and not repairing the basic elements of design concelebrants the ski Assembly.

This changeover is only possible thanks to the specific design of the unit, namely the presence of multiaxial working body with frame grille, mounted together with the drive modules in a sealed diaphragm bearing housing Assembly, and the execution of the head part of the shield shell in the form of a series of curved plates.

Using reconstructed in this way the unit carry out the driving of the second section of the tunnel has a cross-sectional rectangular shape.

After the sinking of multidisciplinary tunnel display unit to output the pit, where it will be dismantled and sent to the Assembly for further use in the construction of tunnels of various profile.

Thus, the proposed technical solutions in the set of features listed in the claims, provides a solution to the task.

The positive effect of using the proposed group of inventions is to reduce the construction time of multidisciplinary tunnels and reducing material and labor costs in comparison with analogues, which allow the driving of one unit of tunnels only one profile.

1. The method of tunnel construction, including the installation of this unit with the shaping elements is, sequential tunneling of different cross-sectional shape and the dismantling of the tunnel unit, characterized in that during the transition from the tunneling of one form of the cross section of the tunnel excavation other shapes produce the changeover tunneling unit by replacing in the mounting chamber, built at the end of the first tunnel section, its formative elements at a constant number of them.

2. Tunnel Assembly that includes a bearing housing with a sealed diaphragm, which is fixed to shield shell, consisting of head and tail parts, panel hydraulic, knife ring and multi-axis working body with drive modules, the body of which is made in the form of a frame grille with rock cutting and mixing elements placed in front of a sealed aperture and connected with the output shaft of the drive modules by means of cranks, and installed inside the shield shell of the device for shipment from the bottom of destroyed rock and stacker tunnel lining, characterized in that it includes an extra set of tail andthe head parts of the shield shell, the knife ring and frame grille, the outer contour of which in cross section has a different contour similar to the primary elements with the knife ring is removable, the head part of the shield shell made of composite cross-section of shaped plates secured to the support body unit generation circuit constructed of the tunnel.



 

Same patents:

Tunnel shield // 2264538

FIELD: underground building, particularly tunnel shields used to drive tunnels of square cross-sections.

SUBSTANCE: device has body of square cross-section with rounded corners and ground excavation unit made as rotor with cutting members connected to end and cylindrical surfaces thereof. Device also has cutting members made as inserted blades secured in corners of end body surface and inclined walls, which are arranged between body and partition.

EFFECT: simplified structure and increased operational reliability.

3 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: 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

Tunnel shield // 2264538

FIELD: underground building, particularly tunnel shields used to drive tunnels of square cross-sections.

SUBSTANCE: device has body of square cross-section with rounded corners and ground excavation unit made as rotor with cutting members connected to end and cylindrical surfaces thereof. Device also has cutting members made as inserted blades secured in corners of end body surface and inclined walls, which are arranged between body and partition.

EFFECT: simplified structure and increased operational reliability.

3 dwg

FIELD: mining industry and construction, particularly to construct multipurpose tunnels, and tunneling rigs.

SUBSTANCE: method involves successive tunneling tunnel having variable cross-section and demounting tunneling rig. In going from tunnel section having one cross-section to that having another one the tunneling machine is reset by replacing tunnel profile forming members thereof in mounting chamber constructed in end of the first tunnel section so that the number of above members is constant. The rig comprises load-bearing body with air-tight membrane. Fastened to the body are shield shell composed of head and rear parts, shield hydraulic cylinders, cutting edge and multi-axis executive tool with driving modules. Executive tool housing is made as skeleton grid with rock cutting and mixing members. The grid is arranged in front of geometric diaphragm and is connected to outlet shafts of driving modules by means of crankshafts. Means for transporting cut rock from tunnel face and means for tunnel lining laying are arranged inside the shield shell. The rig has additional system comprising head and rear parts of shield shell, removable cutting edge and skeleton grid having outer cross-sectional outline different from that of similar primary members. Head part of sheet shield is composed of figured covering members in transversal cross-section. The covering members are fastened to load-bearing body along tunnel excavation contour.

EFFECT: possibility to construct tunnel having variable profile.

2 cl, 4 dwg

Full-face machine // 2324051

FIELD: mining; apparatus for making tunnels in underground mining of minerals.

SUBSTANCE: machine includes undercarriage representing a frame whereon caterpillar trucks are attached and trunnion axes of a working head gearbox together with a rotary working head, loading buckets, berm mills, cutting drums, gathering blades, conveyer and protection cowl mounted on supports of said frame. Hydraulic lift cylinders of the working head gearbox are attached to this frame, rods of said cylinders are attached to the working head housing and all rotating parts of said rods are set into bearings equipped with a force lubrication system. The lubrication system includes pump, pressure pipeline, manifolds and system of distribution tubes leading to gear shaft bearings of the gearbox. The undercarriage frame has two tightly closed cavities, wherein a pressure line between the pump and manifolds is positioned being made in the form of coils. Both cavities of the frame are filled with cooling fluid.

EFFECT: cooling of lubricating fluid within the lubrication system; increasing the life of gear shaft bearings of the machine gearbox; decreasing the ambient air temperature; enhancement of working conditions for the operating staff.

4 dwg

Full-face machine // 2324052

FIELD: mining; apparatus for making arched tunnels in underground mining of minerals.

SUBSTANCE: machine includes frame whereon an undercarriage and working element drive gearbox are mounted together with a rotary working head being attached to output shafts of said gearbox. The working head consists of borer, pitching borer, cross element, each end of its arms having a loading bucket with a bottom and sidewalls, and conveyer. The front face bottoms of two loading buckets positioned on opposite arms of said cross element are slopped forward with respect to the machine displacement vector, and those of the other buckets - slopped backward with respect to the same vector.

EFFECT: cleaning-up with the full engagement of the bucket cross-section area; reduction of impact loads for the cross element; reduction of heating and increased wear of the bearings in the working head drive gearbox of the machine.

7 dwg

FIELD: mining.

SUBSTANCE: invention refers to mining industry, namely to driving shields, and may be used during building of highway, railway and public tunnels. Operating member of driving shield includes centre rotor working organ in the form of faceplate, working organs with rock-breaking tools on outer surface for creation of oval form of tunnel section, actuating device of working organs and traveling mechanism. In order to create oval form of tunnel section, working organs are designed as two side and two vertical working organs of drum-type. Each side working organ is designed in the form of body of revolution arranged in relation to cross centroidal principal axis of tunnel section, with bow-shaped element corresponding to arch, half of side arches and perimetres of their connection. End surfaces of vertical working organs of drum-type correspond to arch and floor arch of tunnel. Central working organ is installed by means of bearing on axis located in centre of gravity of driving shield, this axis is also operating member guide. At that side working organs and vertical working organs are installed by means of bearings on their axes rigidly cantilever connected to guide. At that each of mentioned working organs is provided with actuating device, and traveling mechanism is designed in the form of hydraulic jacks.

EFFECT: providing of driving of tunnel of optimal oval shape transverse and establishing of conditions for maximum mechanisation and automation of all operating processes during tunnel building.

5 dwg

FIELD: mining.

SUBSTANCE: actuator of a tunnel shield with oval shape comprises a central rotor tool, two horizontal side tools and two vertical drum tools. The actuator is telescopically connected to a shield shell along centres of rotation of side and vertical tools, and also via a square opening in a tight partition along the centre of gravity with oval section and a square guide passing through it.

EFFECT: invention provides for correction of shield shell position and position of tunnel section as direction of tools rotation changes.

5 dwg

FIELD: mining.

SUBSTANCE: device for formation of tunnels contains cutting head provided with electric or hydraulic motor, mechanism for cutting head actuation, hydraulic mechanism connected to cutting head and designed with possibility of pushing of cutting heads towards the end of tunnel during material removal and supporting structure for support of previously formed part of tunnel. Supporting structure is designed so that to provide support on the tunnel surface both during stop and movement along the tunnel. Cutting head is designed with possibility to move independent of supporting structure. Besides the device has a conveyor for transportation of removed material from cutting head to the place distant from the cutting head during formation of part of tunnel. Also the method of tunnel formation using this device is proposed.

EFFECT: reducing time for tunnel driving.

31 cl, 4 dwg

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