CN114278375A - Tunnel hoop drainage system - Google Patents
Tunnel hoop drainage system Download PDFInfo
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- CN114278375A CN114278375A CN202111557030.9A CN202111557030A CN114278375A CN 114278375 A CN114278375 A CN 114278375A CN 202111557030 A CN202111557030 A CN 202111557030A CN 114278375 A CN114278375 A CN 114278375A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 232
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 61
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 22
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 22
- 241001330002 Bambuseae Species 0.000 claims description 22
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 22
- 239000011425 bamboo Substances 0.000 claims description 22
- 239000012466 permeate Substances 0.000 claims description 22
- 230000001681 protective effect Effects 0.000 claims description 12
- 230000000670 limiting effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 125000003003 spiro group Chemical group 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 21
- 239000010410 layer Substances 0.000 description 117
- 230000008595 infiltration Effects 0.000 description 15
- 238000001764 infiltration Methods 0.000 description 15
- 238000010276 construction Methods 0.000 description 12
- 239000011083 cement mortar Substances 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 239000012943 hotmelt Substances 0.000 description 4
- 230000036961 partial effect Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The tunnel circumferential drainage system is arranged between an initial support layer and a secondary lining layer of a tunnel and comprises a plurality of permeable pipes which are annularly arranged between the initial support layer and the secondary lining layer and used for guiding water seepage and a water guide pipe which is arranged at the bottom of the tunnel and used for enriching and discharging water in the permeable pipes; be provided with the hole of permeating water on the outer wall of pipe of permeating water, the pipe dustcoat of permeating water is equipped with the protection casing, protection casing and preliminary bracing layer fixed connection. This application has the advantage that improves drainage effect.
Description
Technical Field
The application relates to the field of tunnel construction technology, in particular to a tunnel annular drainage system.
Background
At present, tunnels are constructed underground or in mountains, and buildings for vehicles to pass through are laid on railways or highways, so that the influence of adverse geographic factors on transportation is reduced, and great convenience is brought to the transportation of people. In order to ensure the normal running of vehicles and the normal operation of equipment in the tunnel, the arrangement of the tunnel water-proof and drainage system is an essential link in the construction of the tunnel, and the annular tunnel drainage system is an important component in the tunnel drainage system.
In the related technology, a tunnel generally comprises an internal primary support layer and a secondary lining layer arranged outside the primary support layer, the secondary lining layer forms an arch wall of the tunnel, a circumferential drainage system generally comprises a permeable pipe arranged between the primary support layer and the secondary lining layer and a water diversion blind pipe embedded at the bottom of the arch wall, and a water drainage pipe communicated with the water diversion blind pipe is arranged in the tunnel; the outer wall of the permeable pipe is provided with permeable holes, and the permeable pipe can introduce the permeated water into the blind pipe and discharge the water through the diversion blind pipe.
With respect to the related art in the above, the inventors consider that: after the tunnel preliminary bracing was accomplished, lay the pipe of permeating water, when building secondary lining layer by laying bricks or stones, the pipe of permeating water can receive the extrusion of cement mortar and take place to warp, influences the infiltration diversion effect of the pipe of permeating water to the drainage effect to whole drainage system produces the influence.
Disclosure of Invention
In order to improve drainage effect, this application provides a tunnel ring drainage system.
The application provides a tunnel hoop drainage system adopts following technical scheme:
a tunnel circumferential drainage system is arranged between an initial supporting layer and a secondary lining layer of a tunnel and comprises a plurality of permeable pipes which are circumferentially arranged between the initial supporting layer and the secondary lining layer and used for guiding seepage water and a water guide pipe which is arranged at the bottom of the tunnel and used for enriching and discharging water in the permeable pipes; be provided with the hole of permeating water on the outer wall of pipe of permeating water, the pipe dustcoat of permeating water is equipped with the protection casing, protection casing and preliminary bracing layer fixed connection.
By adopting the technical scheme, when rainwater seeps through the construction joint of the primary tunnel supporting layer, the water permeable pipe can guide the seeped water and guide the seeped water into the water conduit for discharge; when pouring the secondary lining layer, the protection casing can protect the pipe of permeating water, reduces because the extrusion of cement mortar is permeated water the pipe and is taken place the possibility of warping to improve the infiltration diversion effect of the pipe of permeating water, and then improve whole drainage system's drainage effect.
Optionally, a positioning groove is formed in the initial support layer along the arrangement direction of the permeable pipe, and the permeable pipe is embedded in the positioning groove.
Through adopting above-mentioned technical scheme, the constant head tank can be with the pipe restriction of permeating water in the construction joint of the initial stage branch protective layer or the more serious position of leaking to improve the diversion drainage effect of the pipe of permeating water.
Optionally, the constant head tank is filled up and is equipped with the permeable to water layer of making of the material that absorbs water and permeate water, permeate water pipe and permeable to water layer butt.
By adopting the technical scheme, the permeable layer can guide the permeated water, so that the water diversion and drainage effects of the permeable pipe are improved; the permeable layer can also play a role in supporting the permeable pipe, so that the blockage of the joint of the initial support layer and the permeable pipe on the permeable hole on the permeable pipe is reduced, and the water seepage and drainage fluency of the permeable pipe is improved; in addition, the hole of permeating water can also filter the water of infiltration, reduces silt and to the jam in the hole of permeating water on the pipe of permeating water, further improves the smooth degree of the pipe drainage of permeating water.
Optionally, be provided with the elastic component between protection casing and the pipe of permeating water, there is the interval and with elastic component elasticity butt between pipe of permeating water and the protection casing.
By adopting the technical scheme, a certain space is formed between the permeable pipe and the protective cover, and the permeable pipe is tightly propped against the permeable layer through the pushing of the elastic piece, when the pressure of the permeated water is overlarge, the permeable layer absorbs water and expands, the permeable pipe is deviated towards the direction away from the positioning groove under the pushing of the water pressure, the elastic piece is elastically deformed, and the damage to the supporting layer caused by the overlarge water pressure due to the fact that the permeable pipe is tightly propped against the primary supporting layer is reduced; after the drainage, under the effect of elastic component, the pipe of permeating water supports tightly with the layer of permeating water, and the fixing that had both been favorable to the pipe of permeating water can also extrude the layer of permeating water and will permeate remaining water in the water layer and drain. To sum up, through setting up the elastic component, both can play the guard action, reduce because pipe and preliminary bracing layer of permeating water support to lean on the tension, lead to water pressure too big to the damage that preliminary bracing layer caused, can also fix the pipe of permeating water, improve the stability of the pipe of permeating water, in addition, be convenient for with permeating water remaining log raft in the in situ and dry, guarantee going on smoothly of next drainage work.
Optionally, the elastic component includes an installation section of thick bamboo of one end and protection casing fixed connection, wears to locate in the installation section of thick bamboo and with the installation section of thick bamboo complex installation pole that slides, set up and keep away from installation section of thick bamboo one end in the installation pole and be used for supporting the pressing plate of tight tub of permeating water to and set up and be used for promoting the installation pole towards the spring that tub direction of permeating water slided in the installation section of thick bamboo.
By adopting the technical scheme, when the pressure of the permeated water is too high, the permeable layer absorbs water and expands, the permeable pipe deviates towards the direction away from the positioning groove under the pushing of the water pressure, the mounting rod slides towards the inside of the mounting cylinder, and the spring contracts; after the drainage, under the effect of spring thrust, the installation pole slides outward towards the installation section of thick bamboo, and the pressure board promotes to permeate water and manages and slide towards the constant head tank in. Through setting up an installation section of thick bamboo, installation pole and pressing the clamp plate, improve the smoothness degree of permeating water pipe displacement.
Optionally, one surface of the pressing plate facing the water permeable pipe is an inwards concave arc surface, and the water permeable pipe is limited in a space formed by the pressing plate and the positioning groove.
Through adopting above-mentioned technical scheme, improve the stability of the pipe of permeating water in the constant head tank.
Optionally, be provided with the spacing groove along the axis direction on the inner wall of an installation section of thick bamboo, the protrusion is provided with the stopper on the installation pole, and the stopper inlays to be located in the spacing groove and with the spacing groove cooperation of sliding.
By adopting the technical scheme, the limiting groove and the limiting block which are matched with each other can limit and guide the sliding of the mounting rod, so that the sliding stability and the sliding smoothness of the mounting rod are improved; in addition, can also restrict the installation pole and rotate, make the cambered surface of pressing the clamp plate correspond with the pipe of permeating water all the time, improve the stability of the pipe of permeating water.
Optionally, an opening is formed in one end, away from the protective cover, of the mounting cylinder, and the limiting groove penetrates through the opening end of the mounting cylinder; the mounting barrel is connected with a cover body used for sealing an opening of the mounting barrel in a screwed mode, a mounting hole is formed in the cover body, a through groove is formed in the cover body, and the mounting hole and the through groove are arranged to be matched with the mounting rod and the limiting block in shape.
Through adopting above-mentioned technical scheme, when needs are changed according to the clamp plate, twist to twist the lid and pull down on installing a section of thick bamboo with a lid body, outwards stimulate the installation pole and pull out the installation pole from installing a section of thick bamboo, then rotate the installation pole, make the stopper correspond with logical groove position, outwards stimulate the installation pole and will install the pole and pull down from the lid, carry out holistic change to the installation pole and press the clamp plate, the stopper on will installing the pole corresponds with logical groove and inserts in the lid, then make the stopper correspond with the constant head tank, insert the installation pole in an installation section of thick bamboo, then twist the lid and accomplish the fixing of installation pole in an installation section of thick bamboo. Through setting up the lid and set up logical groove on the lid, improve the convenience of wholly carrying out the change to installation pole and pressing the pressing plate.
Optionally, a water diversion layer is laid between the initial support layer and the secondary lining layer, a waterproof layer is laid between the water diversion layer and the secondary lining layer, a water permeable hole is formed in the outer wall of the water diversion pipe, and the water diversion layer and the two ends of the waterproof layer are wrapped outside the water diversion pipe.
By adopting the technical scheme, the diversion channel can be formed between the primary supporting layer and the secondary lining layer on the diversion layer, so that water permeating into different positions on the primary supporting layer can be conveniently guided into the diversion pipe; the waterproof layer can isolate the primary support layer from the secondary lining layer and prevent water from permeating into the secondary lining layer; through setting up drainage layer and waterproof layer, can further improve the waterproof drainage effect in tunnel.
Optionally, a pipe seat is arranged between the initial supporting layer and the secondary lining layer at the bottom of the tunnel, a water collecting tank is arranged on the pipe seat, and the water conduit is located in the water collecting tank.
Through adopting above-mentioned technical scheme, the water that introduces water through tub and diversion layer mostly gets into in the diversion pipe and removes, and partial infiltration can be enriched in the water catch bowl to get into the drainage pipe through the hole of permeating water of diversion pipe outer wall and discharge. Through setting up the water catch bowl, can carry out the enrichment to water, make during water permeates the leading water pipe smoothly, prevent excessive of water.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the protective cover, the permeable pipe can be protected when the secondary lining layer is poured, and the possibility of deformation of the permeable pipe due to extrusion of cement mortar is reduced, so that the water seepage and diversion effects of the permeable pipe are improved, and the drainage effect of the whole drainage system is improved;
2. by arranging the permeable layer, the water diversion and drainage effects of the permeable pipe can be improved, and the smoothness of water seepage and drainage of the permeable pipe can be improved due to the blockage of permeable holes on the permeable pipe;
3. the elastic piece is arranged, so that the protection effect can be achieved, the damage to the primary supporting layer caused by overlarge water pressure due to the fact that the permeable pipe is pressed against the primary supporting layer too tightly is reduced, the permeable pipe can be fixed, the stability of the permeable pipe is improved, in addition, residual water in the permeable pipe can be conveniently drained, and the smooth proceeding of the next drainage work is ensured;
4. by arranging the water diversion layer and the waterproof layer, the waterproof and drainage effects of the tunnel can be further improved;
5. through setting up the water catch bowl, can carry out the enrichment to water, make during water permeates the leading water pipe smoothly, prevent excessive of water.
Drawings
FIG. 1 is a schematic structural diagram of a tunnel circumferential drainage system in an embodiment of the present application;
FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;
FIG. 3 is a cross-sectional view of the embodiment of the present application to show the water permeable pipe and the shield cap;
FIG. 4 is an enlarged partial schematic view of portion B of FIG. 3;
FIG. 5 is a schematic structural view of an elastic member according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a water diversion layer and a waterproof layer matched with a primary support layer in the embodiment of the application.
Description of reference numerals: 1. a tunnel; 10. an initial branch protective layer; 100. positioning a groove; 101. a water permeable layer; 11. secondary lining layer; 12. a tube holder; 120. a water collection tank; 2. draining a water layer; 20. a hot melt liner; 21. a cement nail; 3. a waterproof layer; 4. a water permeable pipe; 5. a water conduit; 6. a drain pipe; 7. a protective cover; 8. an elastic member; 80. mounting the cylinder; 800. a limiting groove; 81. mounting a rod; 810. a limiting block; 82. a pressing plate; 83. a spring; 84. a cover body; 840. mounting holes; 841. a through groove; 9. a water conduit.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses tunnel hoop drainage system. Referring to fig. 1, in the construction of a tunnel 1, the tunnel 1 generally comprises an outer primary supporting layer 10 and an inner secondary lining layer 11, the primary supporting layer 10 can control the stress of surrounding rocks to be released and deformed properly, and the secondary lining layer 11 can improve the strength of the primary supporting and bear the pressure of later-stage surrounding rock deformation. The arch direction along the tunnel 1 is set as the circumferential direction of the tunnel 1, and the extending direction along the tunnel 1 is set as the longitudinal direction.
Referring to fig. 2, the tunnel circumferential drainage system comprises a diversion layer 2 laid on an initial support layer 10 and used for guiding seepage water, a waterproof layer 3 laid between the diversion layer 2 and a secondary lining layer 11, a plurality of permeable pipes 4 arranged between the initial support layer 10 and the diversion layer 2 and used for guiding seepage water at a construction joint, a diversion pipe 5 arranged between the initial support layer 10 and the diversion layer 2 and used for enriching water led out by the permeable pipes 4 and the diversion layer 2, and a drainage pipe 6 communicated with the diversion pipe 5 and used for draining water; the water diversion layer 2 can be any water diversion layer with water absorption functionIn the present embodiment, the diversion layer 2 is 350g/m2A diversion channel can be formed between the diversion layer 2 and the waterproof layer 3 of the geotextile; the waterproof layer 3 can adopt an EVA waterproof board with the thickness of 1.5mm, and isolates the drainage layer 2 from the secondary lining layer 11 to prevent water from permeating into the secondary lining layer 11.
Referring to fig. 2, the permeable pipes 4 are arranged along the circumferential direction of the tunnel 1, the permeable pipes 4 are arranged along the longitudinal direction of the tunnel 1, specifically, the arrangement number of the permeable pipes 4 can be adjusted according to the position of an actual construction joint, the water seepage condition and the like, in the embodiment, the permeable pipes 4 are arranged at intervals of 10m, permeable holes are formed in the outer wall of each permeable pipe 4, so that water can permeate, the permeable pipes 4 can adopt permeable blind pipes or corrugated pipes with perforated outer walls, and in the embodiment, the permeable pipes 4 adopt corrugated pipes with perforated outer walls; the leading water pipe 5 has two and lays respectively in the both sides that tunnel 1 is relative, and the both ends of pipe 4 that permeates water communicate with two leading water pipes 5 respectively, has seted up the hole of permeating water on the outer wall of leading water pipe 5, and is concrete, and leading water pipe 5 can adopt the bellows that the outer wall punched, and diversion layer 2 and waterproof layer 3 wrap up outside leading water pipe 5 to make leading water pipe 5 can carry out abundant enrichment to the water that pipe 4 and diversion layer 2 were led out of permeating water. The drain pipe 6 is buried in the center of the tunnel 1 and extends in the longitudinal direction of the tunnel 1, and the drain pipe 6 may be a blind drain or a drain pipe communicating with the water conduit 5. The tube seat 12 is poured between the initial supporting layer 10 and the secondary lining layer 11 at the bottom of the tunnel 1, the tube seat 12 extends along the longitudinal direction of the tunnel 1, the water collecting tank 120 is formed in the tube seat 12, the water guide pipe 5 is located in the water collecting tank 120, the tube seat 12 can improve the height difference between the water guide pipe 5 and the water drain pipe 6, water is convenient to discharge, the water collecting tank 120 can enrich water, the water smoothly permeates into the water guide pipe 5, and water overflow is prevented.
Referring to fig. 3 and 4, a protective cover 7 is arranged outside the water permeable pipe 4, so that the pressure of cement mortar to the water permeable pipe 4 is reduced when the secondary lining layer 11 is built; the protective cover 7 can be a U-shaped metal plate with an opening on the outer wall, in this embodiment, for the convenience of installation, the protective cover 7 is a fine-grid wire mesh, and the protective cover 7 and the initial support layer 10 can be fixed by expansion bolts; a positioning groove 100 is formed in the initial supporting layer 10 along the arrangement direction of the permeable pipe 4, and the outer wall of the permeable pipe 4 is positioned in the positioning groove 100, so that the permeable pipe 4 is convenient to correspond to permeable parts such as construction joints; constant head tank 100 and permeate water and fill up between pipe 4 and be equipped with permeable bed 101, specific permeable bed 101 can adopt sponge, cotton etc. of permeating water to have certain water absorption permeable material to make, and permeable bed 101 both can guide and filter the water of infiltration, can also reduce the jam in the initial stage a protective layer 10 and permeate water pipe 4 butt department to permeating water on the pipe 4. Protection casing 7 and permeate water and be provided with a plurality of elastic component 8 between the pipe 4, a plurality of elastic component 8 are arranged along the length direction who permeates water pipe 4, permeate water pipe 4 and 8 elasticity butts of elastic component, and when infiltration water pressure was too big, the messenger permeated water pipe 4 has certain displacement space, reduces the damage to initial stage branch protective layer 10.
Referring to fig. 4 and 5, the elastic member 8 includes an installation cylinder 80 having one end fixedly connected to the protective cover 7, an installation rod 81 inserted into the installation cylinder 80 and slidably engaged with the installation cylinder 80, a pressing plate 82 disposed at an end of the installation rod 81 far away from the installation cylinder 80 for tightly pressing the permeable pipe 4, and a spring 83 disposed in the installation cylinder 80 for pushing the installation rod 81 to slide toward the permeable pipe 4; the mounting cylinder 80 and the protective cover 7 can be fixed in a welding mode, one end of the mounting cylinder 80, which is far away from the protective cover 7, is provided with an opening, and the mounting cylinder 80 is screwed with a cover body 84 for closing the opening of the mounting cylinder 80; the mounting hole 840 has been seted up on the lid 84, the installation pole 81 passes the mounting hole 840 for cylindrical pole and one end and is located installation section of thick bamboo 80, spacing groove 800 has been seted up on the inner wall of installation section of thick bamboo 80, spacing groove 800 extends and pierces through the open end of installation section of thick bamboo 80 along the axis direction, the position protrusion that corresponds with spacing groove 800 on the installation pole 81 is provided with stopper 810, stopper 810 inlays to be located in spacing groove 800 and slides the cooperation with spacing groove 800, mutually supporting stopper 810 and spacing groove 800 can restrict the installation pole 81, restriction installation pole 81 rotates when guaranteeing that installation pole 81 slides.
Referring to fig. 5, a through groove 841 has been seted up on the terminal surface of lid 84, the shape that mounting hole 840 and through groove 841 were arranged and the shape adaptation that installation pole 81 and stopper 810 were arranged, lead to groove 841 and the dislocation set of spacing groove 800, when needing to dismantle the change installation pole 81, pull down lid 84, will install pole 81 and extract from installation section of thick bamboo 80, rotate installation pole 81 and make stopper 810 correspond with through groove 841, the dismantlement of installation pole 81 is accomplished in the outside pulling. One surface of the pressing plate 82 far away from the mounting rod 81 is an inwards concave cambered surface, so that the mounting plate can conveniently support the water permeable pipe 4 tightly; the spring 83 is provided in the mounting tube 80, and both ends of the spring 83 are respectively abutted against the mounting tube 80 and the mounting rod 81, and the spring 83 is always in a compressed state.
In order to fix the drainage layer 2 and the waterproof layer 3, referring to fig. 6, a plurality of hot-melt gaskets 20 are fixedly connected to the drainage layer 2, specifically, the hot-melt gaskets 20, the drainage layer 2 and the initial support layer 10 are fixed by cement nails 21, and the waterproof layer 3 and the hot-melt gaskets 20 are welded and fixed.
In order to further improve the drainage effect, referring to fig. 2, a plurality of water guiding pipes 9 are arranged in the initial supporting layer 10, the number of the water guiding pipes 9 can be adjusted according to the position of an actual construction joint and the water seepage condition, water permeable holes are formed in the outer wall of each water guiding pipe 9, so that water can permeate conveniently, a water permeable blind pipe or a corrugated pipe with a perforated outer wall can be adopted for the specific water guiding pipe 9, and the water guiding pipes 9 are communicated with the water guiding pipes 5, so that water seepage is facilitated to be drained.
The implementation principle of the tunnel annular drainage system in the embodiment of the application is as follows: when the rainwater oozes through the construction joint of the layer 10 is propped up in 1 initial stage in tunnel, diversion layer 2 can form water conservancy diversion passageway between layer 10 and the secondary lining layer 11 in the initial stage, be convenient for prop up layer 10 in the initial stage in the leading-in water pipe 5 of the water of different positions infiltration, waterproof layer 3 can keep apart layer 10 and secondary lining layer 11 in the initial stage, prevent in water infiltration secondary lining layer 11, improve the smoothness degree of diversion layer 2. The water of the more serious position infiltration of infiltration in the early stage of a protective layer 10 can be discharged in leading-in pipe 5 of aqueduct 9, the pipe 4 that permeates water can be with the leading-in pipe 5 of infiltration of the 10 construction joints department of initial stage, constant head tank 100 can be with permeating water pipe 4 restriction in the more serious position of the construction joints of initial stage a protective layer 10 or leaking, permeable bed 101 guides the water of infiltration, and play the supporting role to the pipe 4 that permeates water, can also filter the water of infiltration, reduce the jam in the hole of permeating water on the pipe 4 that permeates water, improve the smooth degree that the pipe 4 that permeates water and guide water. The water diversion layer 2, the water permeable pipe 4 and the water guide pipe 9 can guide most of the permeated water into the water guide pipe 5, partial seepage water can be enriched in the water collection tank 120, the overflow of the water is prevented, the water enters the water guide pipe 5 through the water permeable holes in the outer wall of the water guide pipe 5, and the water in the water guide pipe 5 is discharged through the water discharge pipe 6. The protection casing 7 can protect the pipe 4 of permeating water, reduces because the extrusion of cement mortar is permeated water the pipe 4 and is taken place the possibility of warping to improve the infiltration diversion effect of permeating water pipe 4.
When the pressure of the permeated water is too high, the permeable layer 101 absorbs water and expands, the permeable pipe 4 deviates towards the direction away from the positioning groove 100 under the pushing of the water pressure, the mounting rod 81 slides towards the inside of the mounting cylinder 80, the spring 83 contracts, the limiting groove 800 and the limiting block 810 which are matched with each other can limit and guide the sliding of the mounting rod 81, the stability and the smoothness of the sliding of the mounting rod 81 are improved, after the drainage is finished, the mounting rod 81 slides towards the outside of the mounting cylinder 80 under the pushing force of the spring 83, the pressing plate 82 pushes the permeable pipe 4 to move towards the inside of the positioning groove 100, and the permeable pipe 4 is fixed in the positioning groove 100; elastic component 8 both can play the guard action, reduces because tub 4 and the early stage of permeating water support to lean on to the tension, leads to the too big damage that causes to the early stage of a protection layer 10 of water pressure, can also fix tub 4 of permeating water, improves the stability of tub 4 of permeating water, in addition, is convenient for drain remaining water in layer 101 of permeating water, guarantees going on smoothly of next drainage work. To sum up, through setting up protection casing 7, when pouring secondary lining layer 11, protection casing 7 can protect pipe 4 of permeating water, reduces because the extrusion of cement mortar pipe 4 of permeating water takes place the possibility of warping to improve the infiltration diversion effect of pipe 4 of permeating water, and then improve whole drainage system's drainage effect.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a tunnel hoop drainage system, sets up between initial stage supporting layer (10) and secondary lining layer (11) of tunnel (1), its characterized in that: the tunnel water-permeable drainage system comprises a plurality of water-permeable pipes (4) which are annularly arranged between an initial support layer (10) and a secondary lining layer (11) and used for guiding water seepage, and a water guide pipe (5) which is arranged at the bottom of the tunnel (1) and used for enriching and discharging water in the water-permeable pipes (4); be provided with the hole of permeating water on the outer wall of pipe (4) of permeating water, pipe (4) dustcoat of permeating water is equipped with protection casing (7), protection casing (7) and initial stage support layer (10) fixed connection.
2. A tunnel hoop drainage system as claimed in claim 1, wherein: the initial support layer (10) is provided with a positioning groove (100) along the arrangement direction of the permeable pipe (4), and the permeable pipe (4) is embedded in the positioning groove (100).
3. A tunnel hoop drainage system as claimed in claim 2, wherein: the locating groove (100) is internally padded with a water-absorbing and water-permeable material to form a water-permeable layer (101), and the water-permeable pipe (4) is abutted to the water-permeable layer (101).
4. A tunnel hoop drainage system as claimed in claim 3, wherein: protection casing (7) and permeate water and be provided with elastic component (8) between pipe (4), permeate water and have the interval and with elastic component (8) elasticity butt between pipe (4) and protection casing (7).
5. A tunnel hoop drainage system as claimed in claim 4, wherein: elastic component (8) include one end and protection casing (7) fixed connection's installation section of thick bamboo (80), wear to locate in installation section of thick bamboo (80) and with installation section of thick bamboo (80) complex installation pole (81) that slides, set up and keep away from installation section of thick bamboo (80) one end in installation pole (81) and be used for supporting pressing plate (82) of tightly permeating water pipe (4) to and set up and be used for promoting in installation section of thick bamboo (80) installation pole (81) towards spring (83) that permeate water pipe (4) direction slided.
6. A tunnel hoop drainage system as claimed in claim 5, wherein: one surface of the pressing plate (82) facing the water permeable pipe (4) is an inwards concave arc surface, and the water permeable pipe (4) is limited in a space formed by the pressing plate (82) and the positioning groove (100).
7. A tunnel hoop drainage system as claimed in claim 6, wherein: be provided with spacing groove (800) along the axis direction on the inner wall of installation section of thick bamboo (80), the protrusion is provided with stopper (810) on installation pole (81), and stopper (810) inlay locate in spacing groove (800) and with spacing groove (800) cooperation of sliding.
8. A tunnel hoop drainage system as claimed in claim 7, wherein: an opening is formed in one end, far away from the protective cover (7), of the mounting cylinder (80), and the limiting groove (800) penetrates through the opening end of the mounting cylinder (80); the utility model discloses a mounting structure, including installation pole (81) and stopper (810), installation pole (80) are gone up the spiro union and are used for sealing installation pole (80) open-ended lid (84), be provided with mounting hole (840) on lid (84), be provided with logical groove (841) on lid (84), the shape that the mounting hole (840) and logical groove (841) were arranged and the shape adaptation that installation pole (81) and stopper (810) were arranged.
9. A tunnel hoop drainage system as claimed in claim 7, wherein: water diversion layer (2) have been laid between initial stage supporting layer (10) and secondary lining layer (11), waterproof layer (3) have been laid between water diversion layer (2) and secondary lining layer (11), be provided with the hole of permeating water on the outer wall of leading water pipe (5), water diversion layer (2) and waterproof layer (3) both ends wrap up outside leading water pipe (5).
10. A tunnel hoop drainage system as claimed in claim 7, wherein: the tunnel is characterized in that a pipe seat (12) is arranged at the bottom of the tunnel (1) and between the initial supporting layer (10) and the secondary lining layer (11), a water collecting tank (120) is arranged on the pipe seat (12), and the water guide pipe (5) is arranged in the water collecting tank (120).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111557030.9A CN114278375A (en) | 2021-12-18 | 2021-12-18 | Tunnel hoop drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111557030.9A CN114278375A (en) | 2021-12-18 | 2021-12-18 | Tunnel hoop drainage system |
Publications (1)
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