CN114562299A - Tunnel waterproof structure and construction method thereof - Google Patents
Tunnel waterproof structure and construction method thereof Download PDFInfo
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- CN114562299A CN114562299A CN202210063425.1A CN202210063425A CN114562299A CN 114562299 A CN114562299 A CN 114562299A CN 202210063425 A CN202210063425 A CN 202210063425A CN 114562299 A CN114562299 A CN 114562299A
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- 238000010276 construction Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000011435 rock Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000002689 soil Substances 0.000 claims abstract description 9
- 239000012528 membrane Substances 0.000 claims description 22
- 239000004567 concrete Substances 0.000 claims description 14
- 239000004570 mortar (masonry) Substances 0.000 claims description 9
- 230000008595 infiltration Effects 0.000 claims description 7
- 238000001764 infiltration Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 241001270131 Agaricus moelleri Species 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 6
- 230000035699 permeability Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
- E21D11/386—Sealing means positioned between adjacent lining members inflatable sealing means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a tunnel waterproof structure, which comprises a waterproof layer, wherein the waterproof layer comprises a waterproof and drainage board, the waterproof and drainage board comprises a water permeable surface, a waterproof surface opposite to the water permeable surface and a drainage channel arranged in the waterproof and drainage board, the waterproof surface faces to the center direction of a tunnel, and the drainage channel is connected with a drainage pipe. The drainage structure can drain seepage water in the rock mass or soil mass of the whole section of the tunnel, reduce the water pressure borne by the waterproof structure arranged in the drainage-preventing integrated structure, effectively reduce the seepage water of the tunnel, simplify the construction procedure of the drainage-preventing integrated structure and improve the construction efficiency. The invention also relates to a construction method of the tunnel waterproof structure.
Description
Technical Field
The invention relates to a tunnel waterproof structure and a construction method of the tunnel waterproof structure.
Background
The tunnel is buried underground, and including various types of water in the underground aquifer, groundwater can find various small cracks usually and form the seepage, and equipment and reinforced concrete in the underground water can also corrode the tunnel shorten its life, therefore the tunnel need take waterproof measure usually, and common method includes setting up waterproof layer and drainage pipe in the tunnel, utilizes the tunnel slope outside discharging water.
Tunnel drainage is usually used in combination with a waterproof layer, such as a drainage ditch pipe arranged on an excavated rock face or a soil face for draining water in a rock mass to reduce the pressure of underground water, and a sealing waterproof layer arranged to prevent the leakage of the underground water. The not enough is that the trench pipe can't be covered with whole tunnel section, and the waterproof layer part can produce higher water pressure, produces the seepage in weak department such as the seam of waterproof board. In addition, in the construction, a drainage system and a waterproof layer are required to be respectively arranged and constructed, the engineering is complex, if the waterproof layer is usually a plastic waterproof film, the plastic waterproof film is difficult to be fixed with a rock surface and is easy to be punctured and damaged by the rock surface, the waterproof film is easy to be broken by shocks in the concrete pouring process of the lining, and the like.
Disclosure of Invention
The invention aims to provide a drainage and waterproof integrated tunnel waterproof structure which simplifies the construction process, also aims to provide a drainage structure which can act on the whole tunnel section, and also aims to provide a construction method of the tunnel waterproof structure.
The permeability of the rock mass and the soil mass which the tunnel passes through is usually low, particularly the rock mass and water in the rock mass generally seep along the cracks of the rock mass, the tunneling or blasting activity of the tunnel engineering in the construction process disturbs the rock mass, a large number of cracks are generated in the rock mass excavated by the tunnel, in addition, the structure of the rock mass or the soil mass can change to a certain extent in the long-term operation of the tunnel, the cracks can develop and change, originally, only the cracks in part of the rock mass can extend on a waterproof layer of the tunnel after developing, and the development of the cracks is difficult to predict comprehensively, so that new pressure-bearing water flow can occur on the section of the whole tunnel, and the arranged trench pipes can not be fully distributed on the whole section, for the new pressure-bearing seepage, the drainage trench can not drain away the cracks, and because of the low permeability of the waterproof layer and other parts of the rock mass, the part of the seepage can accumulate higher water pressure locally on the waterproof layer, as the crack develops, this seepage also spreads around, eventually creating a leak at structural weaknesses such as joints in the flashing.
Therefore, the tunnel waterproof structure comprises a waterproof layer, wherein the waterproof layer comprises a waterproof and drainage plate, the waterproof and drainage plate comprises a water permeable surface, a waterproof surface opposite to the water permeable surface and a drainage channel arranged in the waterproof and drainage plate, the waterproof surface faces the center direction of the tunnel, and the drainage channel is connected with a drainage pipe.
Furthermore, the permeable surface comprises a permeable membrane, the waterproof surface comprises a waterproof membrane plate, a support plate device is arranged in the waterproof and drainage plate, and the permeable membrane and the waterproof membrane plate are connected to the support plate device.
Furthermore, the water permeable surface is connected with a fixing layer which is arranged on the outer side of the infiltration membrane and is used for fixing the tunnel wall.
Further, the main part of preventing the drain bar is scalable to such a mode makes when the installation fixed plate both ends protrusion is used for fixing the fixed layer on the tunnel wall in preventing drain bar main part both ends after the main part shrink of preventing the drain bar, and after the installation completion the fixed plate both ends with prevent drain bar both ends parallel and level or be in and prevent that the drain bar both ends are inboard.
Furthermore, at least two support plate devices are arranged in the waterproof and drainage plate, and an elastic layer is arranged between the support plate devices.
Further, prevent that drain bar both sides are equipped with adjacent water drainage bar one side complex bayonet water joint, be equipped with in the water joint and meet water inflation rubber strip, adjacent drain bar both sides connect double-seam welded fastening.
Further, still include the screed-coat, the screed-coat that includes spouts layer or mortar layer on the tunnel wall, the fixed bed passes through the nail with the screed-coat and fixes.
Further, the waterproof surface is fixed with the cushioning layer, and the cushioning layer is suitable for being connected with the concrete layer.
The invention also comprises a construction method of the tunnel waterproof structure, which comprises the following steps:
(1) spraying concrete or plastering a mortar layer on the excavated rock surface or soil surface to form a leveling layer with the thickness of several centimeters;
(2) paving a drainage-preventing plate on the leveling layer, and fixing the fixing layer and the leveling layer;
(3) taking down the clamping pieces pre-fixed on the two sides of the water-drainage preventing plate, buckling the two sides of the water-drainage preventing plate with the joints of the adjacent water-drainage preventing plate, and performing double-seam welding by adopting a hot welding method;
(4) connecting a drainage channel of the drainage-preventing plate with a drainage pipe of the tunnel;
(5) and connecting the connecting rods of the shock absorption layer with the steel bar meshes of the lining, and pouring concrete to form an integral structure.
Further, the step (1) also comprises the step of placing an embedded block in the leveling layer in advance, wherein a groove matched with the buckle is formed in the embedded block; and the step (2) comprises the step of using a flat-top buckle to be inserted into a groove of the insert block from a preformed hole of the fixed layer to form clamping.
The invention has the beneficial effects that:
(1) the tunnel waterproof structure comprises a waterproof layer, wherein the waterproof layer comprises a waterproof board, the upper surface and the lower surface of the waterproof board are respectively a water permeable surface and a waterproof surface, a drainage channel is arranged inside the waterproof board, when seepage occurs at any position on the tunnel wall, water flow enters the drainage channel through the water permeable surface of the waterproof board, the water flow is discharged to the outside of a drainage pipe or a tunnel under the action of the natural radian or gradient of the waterproof board and the pressure of the seepage, and the waterproof surface arranged on the lower surface of the waterproof board can prevent a small amount of water flow from permeating into a lining, so that the tunnel seepage is effectively reduced.
(2) The invention is provided with the single-side water permeable surface, the middle drainage channel and the other waterproof surface, integrates the drainage structure and the waterproof structure, does not need to be constructed respectively, and simplifies the construction process.
(3) In the specific embodiment of the invention, the fixing layer and the anti-drainage plate main body which can stretch out and draw back relative to the fixing layer to a certain extent are arranged, and the problems that the anti-drainage plate is difficult to fix and the anti-drainage plate cannot completely cover the section of the tunnel due to the fact that the fixing layer protrudes out of the two ends of the anti-drainage plate are solved.
(4) In the concrete embodiment of the invention, the fixing layer and the cushioning layer are arranged, so that the problem that the seepage membrane and the waterproof membrane of the waterproof drainage plate are damaged by excavated rock surface, soil surface and lining poured concrete is solved.
Drawings
FIG. 1 is a schematic view of a tunnel and waterproofing structure;
FIG. 2 is a schematic view of a water drain prevention panel;
FIG. 3 is a schematic cross-sectional view of a drain prevention panel;
FIG. 4 is a schematic view of a joint of a drain prevention plate;
FIG. 5 is a schematic view of the fastening layer being engaged with the insert.
Description of reference numerals: 1. a waterproof layer; 2. a waterproof and drainage plate; 3. a water permeable surface; 301. filtering the membrane; 4. a waterproof surface; 401. a waterproof membrane plate; 5. a drainage channel; 6. a support plate arrangement; 7. a fixed layer; 701. reserving a hole; 8. an elastic layer; 9. a clamping member; 10. a waterproof joint; 11. a rubber strip; 12. leveling layer; 13. a cushioning layer; 14. an insert block; 15. and (5) buckling.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1, 2 and 3, the tunnel waterproof structure of the present invention includes a waterproof layer 1, the waterproof layer 1 includes a waterproof and drainage plate 2, the waterproof and drainage plate 2 includes a water permeable surface 3, a waterproof surface 4 opposite to the water permeable surface 3, and a drainage channel 5 disposed in the waterproof and drainage plate 2, the waterproof surface 4 faces the center direction of the tunnel, and the drainage channel 5 is connected to a drainage pipe. The water permeable surface 3 is arranged on one side of the water-proof drainage plate 2 facing the excavated rock surface or soil surface, the water permeable surface 3 comprises a water permeable membrane 301, such as geotextile, the water permeable membrane is used for preventing impurities in underground water from entering the drainage channel 5 and forming blockage, the front end and the rear end of the water-proof drainage plate 2 are connected with a drainage ditch or a drainage pipeline, the waterproof surface 4 opposite to the water permeable surface 3 and the two sides of the water-proof drainage plate 2 are provided with waterproof membrane plates 401, the waterproof membrane plates 401 can be made of rubber, PVC or polyethylene and other materials, the waterproof surface 4 can also be provided with a layer of waterproof membrane, the PVC or polyethylene and other materials are adopted, and the thickness is usually 1.0-3.0 mm. Be equipped with backup pad device 6 in the drain bar 2, backup pad device 6 becomes a plurality of cross combination shapes, can adopt the plastics material preparation that has certain elasticity, is convenient for bend into the arc shape of tunnel wall, forms the great drainage channel 5 of a plurality of in the backup pad device 6, and drainage channel 5 vertically sets up the slope of being convenient for utilize tunnel wall usually and realizes quick drainage.
In the above embodiment, referring to fig. 3, the water permeable surface 3 is connected to the fixing layer 7 disposed outside the infiltration membrane 301 for fixing to the tunnel wall, and the fixing layer 7 may be made of a high permeability material or have a porous structure. In the prior art, the waterproof layer is usually made of materials such as PVC films, the waterproof layer is difficult to fix with the excavated rock surface of the tunnel, and the rock surface is easy to damage the waterproof layer. In this embodiment, set up fixed bed 7, fixed bed 7 both ends are equipped with preformed hole 701 and are used for the cement nail to fix fixed bed 7 with spout the layer, fixed bed 7 possesses the high permeability simultaneously, when making the seepage flow appear between rock face and the waterproof board, this seepage flow can be along the 7 multidirectional infiltration of fixed bed, and get into drainage channel 5 from the face of permeating water 3, when clogging up takes place for the infiltration membrane 301 part region of the partial drainage channel 5 jam or the face of permeating water of waterproof board 2, the infiltration rivers can get into drainage channel 5 from other positions along the infiltration of fixed bed 7, make single waterproof board form wholly with adjacent waterproof board, improve waterproof board 2's validity.
Referring to fig. 2 and 3, the main body of the water discharge preventing plate 2 is telescopic, when the water discharge preventing plate 2 is installed, two sides of the fixing layer 7 protrude out of two sides of the main body of the water discharge preventing plate 2 after the main body is contracted, the fixing layer 7 is fixed on a tunnel wall, when the installation is completed, the main body of the water discharge preventing plate 2 is reset, and two sides of the fixing layer 7 are flush with two sides of the water discharge preventing plate 2 or are located on the inner side of the water discharge preventing plate 2. In the above embodiment, when the spray layer and the fixing layer 7 are fixed by the cement nails or other methods, two sides of the fixing layer 7 should protrude from two sides of the main body of the water-proof and drainage plate 2, so that the cement nails and the like can be nailed into the spray layer, but when two adjacent water-proof and drainage plates 2 are connected, the water-permeable surface 3 of the water-proof and drainage plate cannot completely cover the section of the tunnel, in the embodiment, at least two support plate devices 6 are arranged in the water-proof and drainage plate 2, an elastic layer 8 is arranged between the support plate devices 6, two sides of the fixing layer 7 are flush with or slightly shorter than two sides of the water-proof and drainage plate 2, two sides of the water-proof and drainage plate 2 are clamped by the clamping members 9 in advance to expose the reserved holes 701 and the installation positions at two ends of the fixing layer 7, when the water-proof and drainage plate are installed, after the two ends of the fixing layer 7 are fixed with the spray layer, the clamping members 9 are removed, the support plate devices 6 of the water-proof and drainage plate 2 are reset under the action of the elastic layer 8, the two sides of the fixed layer 7 are flush with the two sides of the water-proof and drainage plate 2. In this embodiment, holder 9 can be the U-shaped fastener, and water drainage board 2 and fixed bed 7 are connected through the mode of draw-in groove and card key, and the middle part of fixed bed 7 is fixed with water drainage board 2 middle part for but water drainage board 2 both sides relatively fixed bed 7 is flexible, can fix water drainage board 2 and fixed bed 7 firmly again.
In the above embodiment, referring to fig. 4, the waterproof joints 10 are provided on both sides of the waterproof drain board 2, the waterproof joints 10 are plug-in joints which are matched with one end of the adjacent waterproof drain board 2, the waterproof joints 10 are provided with the water-swelling rubber strips 11, and the joints on both sides of the adjacent waterproof drain board 2 are welded and fixed by a hot welding method.
In the above embodiment, the leveling layer 12 is further included, the leveling layer 12 includes a sprayed layer or a mortar layer on the tunnel wall, the sprayed layer is formed by spraying concrete on the excavated rock face, the mortar layer is formed by smearing mortar on the excavated rock face, the thickness of the mortar layer is 2-3cm, and the fixing layer 7 and the leveling layer 12 can be fixed through nails.
In the above embodiment, referring to fig. 3, the waterproof surface 4 is fixed to the cushioning layer 13, the cushioning layer 13 is adapted to be connected to the concrete layer, the cushioning layer 13 is made of a cushioning material, the cushioning layer 13 may further be provided with a connecting rod, the connecting rod may be provided with a convex portion, the connecting rod and the convex portion are connected to the reinforcement system of the lining, when the lining completes the concrete pouring, the cushioning layer 13 may prevent the waterproof surface 4 from being damaged, and at the same time, the connecting rod may enable the waterproof board 2 to form a stable connection with the lining.
The invention also comprises a construction method of the tunnel waterproof structure, which comprises the following steps:
(1) spraying concrete or plastering a mortar layer on the excavated rock surface or soil surface to form a leveling layer 12 with the thickness of several centimeters;
(2) paving the drainage preventing plate 2 on the leveling layer 12, and fixing the fixing layer 7 and the leveling layer 12;
(3) taking down the clamping pieces 9 which are fixed at the two ends of the water-proof and drainage plate 2 in advance, buckling the two ends of the water-proof and drainage plate 2 with the joints of the adjacent water-proof and drainage plate 2, and carrying out double-seam welding by adopting a hot welding method;
(4) connecting the drainage channel 5 of the drainage-preventing plate 2 with a drainage pipe of the tunnel;
(5) connecting the connecting rods of the shock absorption layer 13 with the steel bar meshes of the lining, and pouring concrete to form an integral structure.
In the above embodiment, referring to fig. 5, the step (1) further includes pre-placing an insert 14 in the leveling layer 12, wherein a groove for snap-fitting is formed in the insert; the step (2) comprises the step of using the flat-top buckle 15 to insert the embedded block 14 into the groove of the embedded block from the preformed hole 701 of the fixed layer 7 to form clamping.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a tunnel waterproof construction, includes the waterproof layer, its characterized in that: the waterproof layer includes prevents the drain bar, prevent the drain bar including the surface of permeating water, with the waterproof face relative of the surface of permeating water and establish the drainage channel in preventing the drain bar, waterproof face is towards tunnel center direction, drainage channel and drain pipe connection.
2. The tunnel waterproof structure of claim 1, wherein: the permeable surface comprises a permeable filter membrane, the waterproof surface comprises a waterproof membrane plate, a support plate device is arranged in the waterproof membrane plate, and the permeable filter membrane and the waterproof membrane plate are connected to the support plate device.
3. The tunnel waterproof construction of claim 2, characterized in that: the water permeable surface is connected with a fixed layer which is arranged on the outer side of the infiltration membrane and is used for being fixed with the tunnel wall.
4. The tunnel waterproof structure of claim 3, wherein: prevent that drain bar main part is scalable to such a mode makes when the installation prevent that drain bar main part shrink makes fixed plate both ends protrusion in preventing drain bar main part both ends and be used for fixing the fixed layer on the tunnel wall, after the installation is accomplished the fixed plate both ends with prevent drain bar both ends parallel and level or be in and prevent that drain bar both ends are inboard.
5. The tunnel waterproof structure of claim 3, wherein: at least two supporting plate devices are arranged in the waterproof and drainage plate, and an elastic layer is arranged between the supporting plate devices.
6. The waterproof structure of a tunnel according to any one of claims 1 to 5, wherein: prevent drain bar both sides and be equipped with adjacent water drainage bar one side complex bayonet water joint, be equipped with water-swelling rubber strip in the water joint, adjacent drain bar both sides double-seam welded fastening.
7. The tunnel waterproof structure of claim 6, wherein: still include the screed-coat, the screed-coat that includes on the tunnel wall spouts layer or mortar layer, the fixed bed passes through the nail with the screed-coat and fixes.
8. The tunnel waterproof structure of claim 6, wherein: the waterproof surface is fixed with the cushioning layer, and the cushioning layer is suitable for being connected with the concrete layer.
9. A construction method of the tunnel waterproof structure of claim 7, characterized in that: the method comprises the following steps:
(1) spraying concrete or plastering a mortar layer on the excavated rock surface or soil surface to form a leveling layer with the thickness of several centimeters;
(2) paving a drainage-proof plate on the leveling layer, and fixing the fixed layer and the leveling layer;
(3) taking down the clamping pieces pre-fixed on the two sides of the water-drainage preventing plate, buckling the two sides of the water-drainage preventing plate with the joints of the adjacent water-drainage preventing plate, and performing double-seam welding by adopting a hot welding method;
(4) connecting a drainage channel of the drainage-preventing plate with a drainage pipe of the tunnel;
(5) and connecting the connecting rods of the shock absorption layer with the steel bar meshes of the lining, and pouring concrete to form an integral structure.
10. The construction method of the tunnel waterproof structure according to claim 9, characterized in that: the step (1) also comprises the step of placing an embedded block in the leveling layer in advance, wherein a groove matched with the buckle is formed in the embedded block; and the step (2) comprises the step of using a flat-top buckle to be inserted into a groove of the insert block from a preformed hole of the fixed layer to form clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210063425.1A CN114562299A (en) | 2022-01-20 | 2022-01-20 | Tunnel waterproof structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210063425.1A CN114562299A (en) | 2022-01-20 | 2022-01-20 | Tunnel waterproof structure and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114562299A true CN114562299A (en) | 2022-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210063425.1A Pending CN114562299A (en) | 2022-01-20 | 2022-01-20 | Tunnel waterproof structure and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114562299A (en) |
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2022
- 2022-01-20 CN CN202210063425.1A patent/CN114562299A/en active Pending
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