CN213392262U

CN213392262U - Tunnel secondary lining water seepage treatment structure

Info

Publication number: CN213392262U
Application number: CN202022190605.5U
Authority: CN
Inventors: 林登发; 肖权伟; 徐睿; 雷薇
Original assignee: Chongqing Traffic Engineering Supervision Consulting Co ltd
Current assignee: Chongqing Traffic Engineering Supervision Consulting Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-06-08
Anticipated expiration: 2030-09-29

Abstract

The utility model relates to a two lining infiltration punishment structures in tunnel, it is including seting up the holding tank of the infiltration seam department on two linings in the tunnel, be equipped with drainage mechanism and be used for connecting the coupling mechanism of drainage mechanism and holding tank in the holding tank, the holding tank covers the infiltration seam and extends to the hunch foot bottom of two linings in the tunnel, drainage mechanism is including the drain pipe that is arranged in the holding tank, the drain pipe trend and length are the same with the holding tank, the drain pipe is uncovered towards infiltration seam one side, the drain pipe covers the infiltration seam, coupling mechanism includes the adhesive linkage of fixing drain pipe and holding tank lateral wall bonding. This application has and can reduce to seep water and handle the structure and receive external damage in the use, and lose the effect of waterproof possibility.

Description

Tunnel secondary lining water seepage treatment structure

Technical Field

The application relates to the field of tunnel structures, in particular to a tunnel secondary lining water seepage treatment structure.

Background

The second lining is a concrete layer poured on the inner wall of the excavated tunnel and is used for reinforcing the tunnel support. The stress structure of the tunnel is closely related to the geological environment, the internal force of the rock mass is slightly changed along with the tunneling of the tunnel face during tunnel construction, and when the internal force change exceeds the stress which can be borne by the two-lining concrete, a micro crack can be generated. The cracks not only can reduce the impermeability of the concrete with the secondary lining and influence the use function of the secondary lining, but also can cause the corrosion of the reinforcing steel bars, the carbonization of the concrete and reduce the durability of the material. Therefore, the tunnel two-lining water treatment structure is particularly important for the service life of the tunnel.

The utility model discloses a grant utility model patent that bulletin number is CN207111105U discloses a tunnel hoop seam infiltration water treatment structure sets up the water receiving box of slot-like in hoop seam department along the tunnel hoop, and the water receiving box includes the box body and is located the otic placode of box body both sides, and the otic placode is fixed in secondary lining's inner wall, and the box body encloses into the sluicing passageway with the inner wall of secondary lining, sluicing passageway both ends extend to corresponding side ditch respectively.

In view of the above-mentioned related technologies, the inventor believes that the water receiving box protrudes from the surface of the tunnel secondary lining, and is easily damaged by collision of pedestrians, vehicles and the like to cause water seepage and lose the waterproof function.

SUMMERY OF THE UTILITY MODEL

In order to reduce the possibility that the water seepage treatment structure is damaged by the outside in the using process and loses the waterproof function, the application provides a tunnel secondary lining water seepage treatment structure.

The application provides a two lining infiltration punishment structures in tunnel adopts following technical scheme:

the utility model provides a two lining infiltration punishment in tunnel structure, including seting up the holding tank in the infiltration seam department of two linings in the tunnel, be equipped with drainage mechanism and be used for connecting the coupling mechanism of drainage mechanism and holding tank in the holding tank, the holding tank covers the infiltration seam and extends to the hunch foot bottom of two linings in the tunnel, drainage mechanism is including the drain pipe that is arranged in the holding tank, the drain pipe moves towards and length is the same with the holding tank, the drain pipe is uncovered towards infiltration seam one side, the drain pipe covers the infiltration seam, coupling mechanism includes the adhesive linkage of drain pipe and holding tank lateral wall bonding fixation.

By adopting the technical scheme, water seeped from the water seepage seam of the tunnel secondary lining enters the water drainage pipe and flows to the bottom end of the tunnel arch springing along the water drainage pipe, so that the possibility that the service function of the secondary lining is influenced by the water flowing on the tunnel secondary lining is reduced, and the function of protecting the tunnel secondary lining is achieved; because the drain pipe holds in the holding tank, reduced the drain pipe by the impaired and infiltration of collision such as pedestrian, vehicle, lose waterproof possibility.

Optionally, the drainage mechanism further comprises drainage ditches arranged at arch feet at two ends of the secondary tunnel lining, and the drainage ditches are arranged along the length direction of the tunnel.

By adopting the technical scheme, the water draining pipe can lead water permeating from the secondary lining of the tunnel into the water draining ditch to be drained out of the tunnel, so that the possibility of wet and slippery road surface caused by that the water flows onto the ground of the tunnel is reduced; the drainage ditch is arranged along the length direction of the tunnel, and can collect and guide out water at the penetration position of the tunnel along the length direction.

Optionally, the holding tank extends to 30cm in the escape canal, and escape canal top end closing cap has the ditch cover, and the ditch cover is flat mutually with the road surface in the tunnel.

By adopting the technical scheme, the holding tank extends to the drainage ditch by 30cm, so that water in the holding tank can be completely led into the drainage ditch, and the possibility that the joint of the holding tank and the drainage ditch overflows to the road surface is reduced; the ditch cover can reduce the possibility of blockage caused by sundries entering the drainage ditch; but also reduce the possibility that the passers-by mistakenly falls into the drainage ditch, and improve the safety.

Optionally, coupling mechanism still includes and meets water inflation's buffer layer, and the buffer layer is fixed between adhesive linkage and holding tank lateral wall.

By adopting the technical scheme, the buffer layer expands when meeting water to fill up the gap between the drain pipe and the side wall of the accommodating groove, so that the possibility of water overflowing from the joint of the drain pipe and the accommodating groove is reduced; and the waterproof effect is improved by adapting to the deformation of the seam and the expansion with heat and contraction with cold.

Optionally, coupling mechanism still includes the back up coat that is used for consolidating the drain pipe, and the back up coat setting deviates from infiltration seam one side at the drain pipe, and the back up coat deviates from infiltration seam one side and holds the groove lateral wall mutually level.

Through adopting above-mentioned technical scheme, can strengthen the joint strength of drain pipe and holding tank, reduce the possibility that the drain pipe drops in the use.

Optionally, the reinforcing layer is an anti-crack mortar layer.

Through adopting above-mentioned technical scheme, arrange anti-crack mortar in the holding tank and trowel, on the one hand, can increase the joint strength of drain pipe and holding tank, on the other hand can hide the drain pipe, further reduces the drain pipe and exposes impaired probability outward to difficult fracture, life is longer.

Optionally, the connecting mechanism further comprises a waterproof layer arranged outside the buffer layer.

Through adopting above-mentioned technical scheme, can prevent to paint when the back up coat, water in the mortar contacts in advance with the buffer layer and makes the buffer layer expand in advance for the buffer layer can play the biggest effect when two linings in the tunnel infiltration.

Optionally, a flexible reinforcing layer is fixedly bonded to the inner wall of the drain pipe, the width of the reinforcing layer is larger than that of the drain pipe, and the reinforcing layer extends out of the drain pipe along two ends of the width direction and is fixedly bonded to the side wall of the accommodating groove.

Through adopting above-mentioned technical scheme, the enhancement layer stretches out the drain pipe along width direction both ends and can increase drain pipe and holding tank lateral wall area of contact with holding tank lateral wall bonding is fixed, increases the joint strength of drain pipe and holding tank lateral wall.

Optionally, the reinforced layer extends out of the drain pipe part and is in a wave shape.

Through adopting above-mentioned technical scheme, the enhancement layer stretches out drain pipe part and is the area of contact that the wave can increase enhancement layer and back up coat and articulamentum to increase the drain pipe with the joint strength of holding tank, can also make the water in the drain pipe form the stream of detouring when overflowing from between enhancement layer and the articulamentum, reduce the water in the drain pipe and spill over the possibility from the junction of drain pipe and articulamentum.

Optionally, the drain pipe is a PVC corrugated pipe.

Through adopting above-mentioned technical scheme, the PVC bellows can the bending deformation adapt to the different water seepage seam structure of crooked trend, improves application scope.

In summary, the present application includes at least one of the following beneficial technical effects:

1. because the drain pipe is accommodated in the accommodating groove, the possibility that the drain pipe is damaged by collision of pedestrians, vehicles and the like, seeps water and loses the waterproof function is reduced;

2. the buffer layer expands when meeting water to fill up a gap between the drain pipe and the side wall of the accommodating groove, so that the possibility of water overflowing from the joint of the drain pipe and the accommodating groove is reduced; the waterproof effect can be improved by adapting to the deformation of the seam and the expansion with heat and contraction with cold;

3. the reinforced layer stretches out of the drain pipe part to form a wave shape, so that the contact area of the reinforced layer, the reinforced layer and the connecting layer can be increased, the connection strength of the drain pipe and the accommodating tank is increased, the water in the drain pipe can form a bypass flow when overflowing from the reinforced layer and the connecting layer, and the possibility that the water in the drain pipe overflows from the joint of the drain pipe and the connecting layer is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

fig. 2 is an enlarged sectional view of the drain pipe and the housing tank.

Description of reference numerals: 1. a tunnel secondary lining; 2. water seepage seams; 3. accommodating grooves; 4. a drainage mechanism; 41. a drain pipe; 42. a drainage ditch; 421. a trench cover; 5. a connecting mechanism; 51. an adhesive layer; 52. a buffer layer; 53. a waterproof layer; 54. a reinforcement layer; 6. and a reinforcing layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a tunnel secondary lining seepage treatment structure. Referring to fig. 1 and 2, the tunnel secondary lining water seepage treatment structure comprises an accommodating groove 3 arranged at a water seepage seam 2 of the tunnel secondary lining 1, and a drainage mechanism 4 and a connecting mechanism 5 are arranged in the accommodating groove 3. The holding tank 3 covers the water seepage seam 2 and extends to the bottom end of the arch foot of the tunnel secondary lining 1 so as to guide the seepage water to the ground. The drainage mechanism 4 comprises a drainage pipe 41 positioned in the accommodating tank 3, the drainage pipe 41 runs towards and has the same length as the accommodating tank 3, one side of the drainage pipe 41 facing the water seepage seam 2 is open, so that seeped water enters the drainage pipe 41, the drainage pipe 41 covers the water seepage seam 2, and the seeped water is reduced from dripping or continuously extending to other places. The connecting mechanism 5 comprises an adhesive layer 51 for fixedly adhering the drain pipe 41 and the side wall of the accommodating tank 3, and is used for fixing and sealing the drain pipe 41 in the accommodating tank 3, and the possibility that the drain pipe 41 is damaged by collision of pedestrians, vehicles and the like to seep water and lose the waterproof function is reduced because the drain pipe 41 is accommodated in the accommodating tank 3.

Referring to fig. 1 and 2, the tunnel is in a semicircular shape, and the tunnel secondary lining 1 is a concrete layer poured on the inner wall of the tunnel and is used for improving the supporting strength of the tunnel. Along with the change of the internal force of the tunnel rock mass, a plurality of water seepage seams 2 may appear on the tunnel secondary lining 1, and water seepage into the tunnel secondary lining 1 is easy to occur in rainy days, so that the use function of the tunnel secondary lining 1 is influenced.

The drainage mechanism 4 further comprises drainage ditches 42 arranged at arch feet at two ends of the tunnel secondary lining 1 and used for collecting the leakage water guided out of the holding tank 3 and reducing the possibility that the leakage water flows to the tunnel pavement. The drainage ditch 42 is opened in the longitudinal direction of the tunnel so that all leakage water in the longitudinal direction of the tunnel can be collected and drained. The top end of the drainage ditch 42 is sealed with a ditch cover 421, and the ditch cover 421 is level with the inner road surface of the tunnel, so that the possibility of blockage caused by sundries entering the drainage ditch 42 can be reduced; but also reduce the possibility that the passers-by fall into the drainage ditch 42 by mistake and improve the safety.

The width and depth of the holding tank 3 are different according to the flow of the leakage water, the width of the holding tank 3 can be 10-15cm, the depth can be 8-10cm, the width is 10cm, and the depth is 8 cm. The bottom end of the holding tank 3 extends to 30cm into the drain 42 so that the water in the holding tank 3 can be entirely led into the drain 42, reducing the possibility of the junction of the holding tank 3 and the drain 42 overflowing to the road surface.

Referring to fig. 1 and 2, the drain pipe 41 may be a circular PVC corrugated pipe equally divided along the diameter, and may be bent to adapt to the structure of the water seepage seam 2 with different bending directions, so as to improve the application range. The inner wall of the drain pipe 41 is fixedly provided with a flexible reinforcing layer 6 through waterproof glue in a bonding mode, the reinforcing layer 6 can be a waterproof roll with a rough surface, the width of the reinforcing layer 6 is larger than that of the drain pipe 41, the reinforcing layer 6 stretches out the drain pipe 41 along the two ends of the width direction and is fixedly bonded with the side wall of the accommodating tank 3 through the bonding layer 51, the contact area of the drain pipe 41 and the side wall of the accommodating tank 3 can be increased, and the connecting strength of the drain pipe 41 and the side. The adhesive layer 51 may be a sealant or a waterproof adhesive.

The part of the reinforcing layer 6 extending out of the drain pipe 41 is in a wave shape, so that the contact area between the reinforcing layer 6 and the adhesive layer 51 can be increased, the connection strength between the drain pipe 41 and the accommodating groove 3 is increased, the water in the drain pipe 41 can form a bypass flow when overflowing from the reinforcing layer 6 and the adhesive layer, and the possibility that the water in the drain pipe 41 overflows from the connection part between the drain pipe 41 and the adhesive layer 51 is reduced.

The connecting mechanism 5 further comprises a buffer layer 52, a waterproof layer 53 and a reinforcing layer 54, wherein the buffer layer 52 can be BW caulking glue which is adhered between the adhesive layer 51 and the side wall of the accommodating groove 3 and can expand when meeting water, so that a gap between the adhesive layer 51 and the side wall of the accommodating groove 3 is filled, and the possibility of water overflowing from the joint of the drain pipe 41 and the accommodating groove 3 is reduced; and the waterproof paint can also adapt to deformation of water seepage seams, expansion with heat and contraction with cold, and improves the waterproof effect.

The waterproof layer 53 may be a leak-stopping layer or a waterproof adhesive layer which is bonded and fixed outside the buffer layer 52, and is used for reducing the possibility of water absorption and expansion of the buffer layer 52 during construction, so that the buffer layer 52 can play the greatest role when the tunnel secondary lining 1 seeps water.

The reinforcing layer 54 is an anti-crack mortar layer bonded on one side of the drain pipe 41, which is far away from the water seepage seam 2, so that the sealing performance of the joint of the drain pipe 41 and the accommodating groove 3 can be improved, and the anti-permeability capability is further enhanced; the drain pipe 41 can be hidden, the probability that the drain pipe 41 is exposed to the outside and damaged is further reduced, the drain pipe is not prone to cracking, and the service life is longer. One side of the reinforcing layer 54, which is far away from the water seepage seam 2, is level with the side wall of the accommodating groove 3, so that the flatness and the attractiveness of the tunnel secondary lining 1 are improved.

The construction process of the tunnel secondary lining seepage water treatment structure in the embodiment of the application is as follows: constructors firstly search and mark the position and the shape of the water seepage seam 2 on the tunnel secondary lining 1, and then cut a holding tank 3 along the water seepage seam 2, wherein the width and the depth of the holding tank 3 are matched with the water seepage amount of the water seepage seam 2. The bottom end of the accommodating tank 3 is extended to the drain 42 by 30 cm. Then the surface of the accommodating groove 3 is cleaned, and the waterproof coiled material is adhered to the inner wall of the fixing nail drain pipe 41 to form the reinforcing layer 6. Then, the drain pipe 41 is placed in the housing tank 3 and the water-permeable seam 2 is covered, and then the waterproof roll is adhered to the side wall of the housing tank 3 by using the sealing agent or the waterproof adhesive as the adhesive layer 51 so as to fix the drain pipe 41 as far as possible without leaving a gap.

Then caulking glue is embedded at the joint to form a buffer layer 52, a layer of leak stopping agent or waterproof glue is coated outside the buffer layer 52 to form a waterproof layer 53, and finally anti-crack mortar is coated in the accommodating groove 3 and compacted to form a reinforcing layer 54.

The implementation principle of the tunnel secondary lining seepage water treatment structure in the embodiment of the application is as follows: the water seeped from the water seepage seam 2 of the tunnel secondary lining 1 enters the water drainage pipe 41 and flows to the bottom end of the tunnel arch springing along the water drainage pipe 41, so that the possibility that the water flows on the tunnel secondary lining 1 to influence the use function of the secondary lining is reduced, and the function of protecting the tunnel secondary lining 1 is achieved; since the drain pipe 41 is accommodated in the accommodating tank 3, the possibility that the drain pipe 41 is damaged by collision of passing pedestrians, vehicles, or the like to seep water and lose the waterproofing function is reduced.

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

1. The utility model provides a two lining infiltration punishment structures in tunnel which characterized in that: including offering holding tank (3) in infiltration seam (2) department of two linings in the tunnel (1), be equipped with drainage mechanism (4) and be used for connecting coupling mechanism (4) and holding tank (3) coupling mechanism (5) in holding tank (3), holding tank (3) cover infiltration seam (2) and extend to the hunch foot bottom of two linings in the tunnel (1), drainage mechanism (4) are including drain pipe (41) that are arranged in holding tank (3), drain pipe (41) trend and length are the same with holding tank (3), drain pipe (41) are uncovered towards infiltration seam (2) one side, drain pipe (41) cover infiltration seam (2), coupling mechanism (5) are including bonding layer (51) with drain pipe (41) and holding tank (3) lateral wall bonding fixation.

2. The tunnel secondary lining infiltration treatment structure of claim 1, characterized in that: the drainage mechanism (4) further comprises drainage ditches (42) arranged at arch feet at two ends of the tunnel secondary lining (1), and the drainage ditches (42) are arranged along the length direction of the tunnel.

3. The tunnel secondary lining infiltration treatment structure of claim 2, characterized in that: the holding tank (3) extends to 30cm in the escape canal (42), and escape canal (42) top end closing cap has ditch cover (421), and ditch cover (421) are flat mutually with the road surface in the tunnel.

4. The tunnel secondary lining infiltration treatment structure of claim 1, characterized in that: coupling mechanism (5) still include water-swelling buffer layer (52), and buffer layer (52) are fixed between adhesive linkage (51) and holding tank (3) lateral wall.

5. The tunnel secondary lining infiltration treatment structure of claim 4, characterized in that: the connecting mechanism (5) further comprises a reinforcing layer (54) used for reinforcing the drain pipe (41), the reinforcing layer (54) is arranged on one side, deviating from the water seepage seam (2), of the drain pipe (41), and the side, deviating from the water seepage seam (2), of the reinforcing layer (54) is level with the side wall of the accommodating groove (3).

6. The tunnel secondary lining infiltration treatment structure of claim 5, characterized in that: the reinforcing layer (54) is an anti-crack mortar layer.

7. The tunnel secondary lining infiltration treatment structure of claim 6, characterized in that: the connecting mechanism (5) further comprises a waterproof layer (53) arranged outside the buffer layer (52).

8. The tunnel secondary lining infiltration treatment structure of claim 1, characterized in that: the inner wall of the drain pipe (41) is fixedly bonded with a flexible reinforcing layer (6), the width of the reinforcing layer (6) is larger than that of the drain pipe (41), and the reinforcing layer (6) extends out of the drain pipe (41) along the two ends of the width direction and is fixedly bonded with the side wall of the accommodating groove (3).

9. The tunnel secondary lining infiltration treatment structure of claim 8, characterized in that: the part of the reinforcing layer (6) extending out of the drain pipe (41) is wavy.

10. The tunnel secondary lining infiltration treatment structure of any one of claims 1-9, characterized in that: the drain pipe (41) is a PVC corrugated pipe.