CN107740708B - Construction structure and construction method for preventing leakage of tunnel arch wall foot - Google Patents
Construction structure and construction method for preventing leakage of tunnel arch wall foot Download PDFInfo
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- CN107740708B CN107740708B CN201710772437.0A CN201710772437A CN107740708B CN 107740708 B CN107740708 B CN 107740708B CN 201710772437 A CN201710772437 A CN 201710772437A CN 107740708 B CN107740708 B CN 107740708B
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- drainage
- concrete
- grooves
- arch
- arch wall
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- 238000010276 construction Methods 0.000 title claims abstract description 34
- 239000004575 stone Substances 0.000 claims abstract description 12
- 239000004744 fabric Substances 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims description 18
- 239000004746 geotextile Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000005669 field effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
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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
- E21D11/04—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
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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
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- 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)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a construction structure for preventing leakage water of tunnel arch wall feet and a construction method thereof, the construction structure comprises a secondary lining and an arch wall, wherein the secondary lining is arranged on the arch wall, inverted arch filling is arranged above the secondary lining, a drainage groove is longitudinally arranged at a corner position of the arch wall, a broken stone inverted filter layer is arranged in a notch of the drainage groove, geotechnical cloth is arranged on the upper surface of the broken stone inverted filter layer, a plurality of transverse drainage pipes are longitudinally arranged on the upper surface of the inverted arch filling, the transverse drainage pipes are positioned on one side of the drainage groove, a bottom plate is arranged on the upper surface of the transverse drainage pipes, post-cast concrete is arranged on the upper surface of the geotechnical cloth, and the post-cast concrete is arranged in a flush manner with the bottom plate. The invention has the characteristics of simple structure, convenient operation, strong operability, simple construction process, obvious field effect, better anti-seepage effect and small influence of a secondary lining structure, saves cost and achieves great economic and social benefits.
Description
Technical Field
The invention relates to the technical field of tunnels, in particular to a construction structure for preventing leakage water of tunnel arch footings and a construction method thereof.
Background
At present, along with the continuous development of social and economic levels and the continuous improvement of life quality demands of people, the development of machinery, modern technology and the like, the construction of highways, railways, subways and the like in China continuously emerge in the form of tunnel engineering, the construction of the tunnel engineering plays a positive role in promoting the development of traffic, and rapid development is obtained, in the construction of the tunnel waterproof board, most of water behind the waterproof board is directly discharged downwards from the back of the secondary lining to the arch wall foot and leaks out due to the defects of design and the insufficient construction, the water leakage site at the arch wall foot of the tunnel is ubiquitous, so that the construction quality is greatly improved, huge economic loss is caused, and negative influence is also caused to unit image.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, the water leakage site at the tunnel arch wall foot is commonly existed, the construction quality is greatly influenced, the unit image is negatively influenced, and the invention provides a construction structure and a construction method for preventing the water leakage of the tunnel arch wall foot.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a construction structure that tunnel arch footing was prevented leaking water, includes secondary lining and arch wall, the secondary lining sets up on the arch wall, the top of secondary lining is equipped with the inverted arch and fills, the corner position department of arch wall vertically is equipped with the water drainage tank, be equipped with rubble anti-filtering layer in the notch of water drainage tank, the upper surface of rubble anti-filtering layer is equipped with geotechnique's cloth, the upper surface of inverted arch filling vertically a plurality of horizontal drain pipes, and horizontal drain pipe is located one side of water drainage tank, the upper surface of horizontal drain pipe is equipped with the bottom plate, the upper surface of geotechnique's cloth is equipped with post-cast concrete, and post-cast concrete and bottom plate looks parallel and level set up, the top of post-cast concrete is equipped with a plurality of cable grooves, and is equipped with the escape canal between every adjacent two cable grooves, the escape canal is equipped with the escape canal intercommunication setting with the escape canal, the one end that the escape canal was kept away from to horizontal drain pipe is equipped with the central escape canal, and horizontal drain pipe and central escape canal intercommunication setting.
Preferably, the edge of the drainage channel is less than or equal to the edge of the cable channel.
Preferably, the thickness of the crushed stone reverse filtering layer is 10-20cm.
Preferably, the distance between the transverse drain pipes is 20-30m, and the transverse slope between the transverse drain pipes and the inverted arch filling is 2%.
Preferably, the thickness of the post-cast concrete is 20cm.
The construction method comprises the following steps:
s1, filling a construction inverted arch to a designed elevation;
s2, installing transverse drain pipes with transverse slopes of 2% at intervals of 20-30m longitudinally on inverted arch filling, and installing templates at arch wall feet positions to reserve longitudinal drain grooves with widths of about 0.5m, wherein the edges of the drain grooves are not more than the edges of the cable grooves;
s3, pouring tunnel bottom plate concrete;
s4, installing tunnel secondary lining concrete, and forming a longitudinal drainage channel at the arch wall foot position;
s5, paving a broken stone reverse filtering layer with the thickness of 10-20cm at the bottom of the longitudinal drainage groove, and ensuring the smoothness between the broken stone reverse filtering layer and the transverse drainage pipe;
s6, paving geotextiles on the crushed stone reverse filtering layer to prevent post-cast concrete from penetrating into the crushed stone reverse filtering layer;
s7, pouring post-pouring concrete with the thickness of 20cm on geotextile, connecting the post-pouring concrete with the bottom plate to form a whole, and leveling the post-pouring concrete with the bottom plate;
and S8, constructing a longitudinal cable trough and a longitudinal drainage ditch on the post-cast concrete.
The invention has simple structure and convenient operation, when the tunnel drainage prevention system is constructed, the construction process is changed, the principles of taking row as the main part and taking blockage as the auxiliary part are adopted, the longitudinal drainage grooves are arranged at the arch feet under the drainage ditch and the cable groove, the width of the drainage grooves is about 0.5m, the gravel reverse filtering layer with the thickness of 10-20cm is arranged in the notch, the geotextile is arranged on the reverse filtering layer to prevent the longitudinal drainage grooves from being blocked by concrete infiltration, the geotextile is poured with concrete with the thickness of 20cm and is flush with the bottom plate, and the transverse drainage pipes with the transverse slope of 2% are arranged between the bottom plate and the inverted arch at intervals of 20-30m and are communicated with the gravel reverse filtering layer.
Drawings
Fig. 1 is a schematic structural view of a construction structure and a construction method for preventing leakage of tunnel arch footing;
fig. 2 is a schematic structural view of the drain.
In the figure: the concrete is characterized by comprising a secondary lining, inverted arch filling, 3 drainage grooves, 4 gravel inverted filter layers, 5 transverse drainage pipes, 6 geotextiles, 7 bottom plates, 8 post-pouring concrete, 9 cable grooves, 10 drainage ditches, 11 central drainage ditches and 12 arch walls.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-2, a tunnel arch wall foot leak protection water construction structure, including secondary lining 1 and arch wall 12, secondary lining 1 sets up on arch wall 12, the top of secondary lining 1 is equipped with the inverted arch and fills 2, the corner position department of arch wall 12 vertically is equipped with water drainage tank 3, the edge of water drainage tank 3 is less than or equal to the edge of cable duct 9, be convenient for the water in the cable duct 9 is arranged in water drainage tank 3, be equipped with rubble anti-filtering layer 4 in the notch of water drainage tank 3, rubble anti-filtering layer 4's thickness is 10-20cm, strengthen anti-filtering effect, the upper surface of rubble anti-filtering layer 4 is equipped with geotechnique cloth 6, the longitudinal a plurality of horizontal drain pipes 5 of upper surface of inverted arch is filled 2, distance between the horizontal drain pipes 5 is 20-30m, and the horizontal slope between horizontal drain pipes 5 and the inverted arch are 2%, be convenient for the water in the horizontal drain pipe 5 is arranged in the drain 10, and horizontal drain pipe 5 is located one side of water drainage tank 3, the upper surface of horizontal drain pipe 5 is equipped with bottom plate 7, be equipped with behind the pouring 8 thickness of geotechnical cloth 6, be equipped with behind the back 8, be equipped with the cable duct 8 and be equipped with the depth of water drainage tank 8 and be equipped with the parallel and level between the water drainage tank 3 and the water drainage tank 11, and the water drainage tank is set up with the horizontal drain 11, and the center is set up with the water drainage tank 11, and is parallel and level with the water drainage tank 11.
The invention has simple structure and convenient operation, when the tunnel drainage-proof system is constructed, the construction technology is changed, the principles of taking row as the main and taking blockage as the auxiliary are adopted, the longitudinal drainage grooves 3 are arranged at the arch feet under the drainage ditch 10 and the cable groove 9, the width of the drainage grooves 3 is about 0.5m, the gravel reverse filter layer 4 with the thickness of 10-20cm is arranged in the notch, the geotextile 6 is arranged on the reverse filter layer, the longitudinal drainage grooves 3 are prevented from being blocked by concrete infiltration, the geotextile 6 is poured with concrete with the thickness of 20cm and is flush with the bottom plate 7, and the transverse drainage pipe 5 with the transverse slope of 2% is arranged between the bottom plate 7 and the inverted arch at intervals of 20-30m and is communicated with the gravel reverse filter layer 4.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The construction method of the construction structure for preventing the leakage of the tunnel arch wall foot comprises a secondary lining (1) and an arch wall (12), wherein the secondary lining (1) is arranged on the arch wall (12), inverted arch filling (2) is arranged above the secondary lining (1), drainage grooves (3) are longitudinally arranged at the corner positions of the arch wall (12), a gravel inverted filter layer (4) is arranged in the notch of the drainage grooves (3), geotechnical cloth (6) is arranged on the upper surface of the gravel inverted filter layer (4), a plurality of transverse drainage pipes (5) are longitudinally arranged on the upper surface of the inverted arch filling (2), the transverse drainage pipes (5) are arranged on one side of the drainage grooves (3), a bottom plate (7) is arranged on the upper surface of the transverse drainage pipes (5), rear concrete (8) is arranged on the upper surface of the geotechnical cloth (6) in a parallel and level mode with the bottom plate (7), a plurality of cable grooves (9) are arranged above the rear concrete (8), a plurality of adjacent cable grooves (9) are arranged between the adjacent drainage grooves (10) and are arranged on one end of each drainage groove (10), and the transverse drain pipe (5) is communicated with the central drain ditch (11), and is characterized in that the construction method comprises the following steps:
s1, filling a construction inverted arch to a designed elevation;
s2, installing transverse drain pipes with transverse slopes of 2% at intervals of 20-30m longitudinally on inverted arch filling, and installing templates at arch wall feet positions to reserve longitudinal drain grooves with widths of about 0.5m, wherein the edges of the drain grooves are not more than the edges of the cable grooves;
s3, pouring tunnel bottom plate concrete;
s4, installing tunnel secondary lining concrete, and forming a longitudinal drainage channel at the arch wall foot position;
s5, paving a broken stone reverse filtering layer with the thickness of 10-20cm at the bottom of the longitudinal drainage groove, and ensuring the smoothness between the broken stone reverse filtering layer and the transverse drainage pipe;
s6, paving geotextiles on the crushed stone reverse filtering layer to prevent post-cast concrete from penetrating into the crushed stone reverse filtering layer;
s7, pouring post-pouring concrete with the thickness of 20cm on geotextile, connecting the post-pouring concrete with the bottom plate to form a whole, and leveling the post-pouring concrete with the bottom plate;
and S8, constructing a longitudinal cable trough and a longitudinal drainage ditch on the post-cast concrete.
2. Construction method according to claim 1, characterized in that the edge of the drainage channel (3) is smaller than or equal to the edge of the cable channel (9).
3. Construction method according to claim 1, characterized in that the thickness of the crushed stone reversed filter layer (4) is 10-20cm.
4. Construction method according to claim 1, characterized in that the distance between the lateral drain pipes (5) is 20-30m and the lateral slope between the lateral drain pipes (5) and the inverted arch filling (2) is 2%.
5. Construction method according to claim 1, characterized in that the post-cast concrete (8) has a thickness of 20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710772437.0A CN107740708B (en) | 2017-08-31 | 2017-08-31 | Construction structure and construction method for preventing leakage of tunnel arch wall foot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710772437.0A CN107740708B (en) | 2017-08-31 | 2017-08-31 | Construction structure and construction method for preventing leakage of tunnel arch wall foot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107740708A CN107740708A (en) | 2018-02-27 |
| CN107740708B true CN107740708B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710772437.0A Active CN107740708B (en) | 2017-08-31 | 2017-08-31 | Construction structure and construction method for preventing leakage of tunnel arch wall foot |
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| Country | Link |
|---|---|
| CN (1) | CN107740708B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779682B (en) * | 2019-03-08 | 2020-04-14 | 中铁十九局集团第三工程有限公司 | Water-rich section highway tunnel escape canal structure system |
| CN114673528B (en) * | 2022-03-28 | 2023-04-28 | 中国电建集团成都勘测设计研究院有限公司 | Tunnel top cavity supporting method |
| CN115491939A (en) * | 2022-10-11 | 2022-12-20 | 宁夏大学 | Be applied to fender drainage facility of permafrost region road |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09506028A (en) * | 1993-02-17 | 1997-06-17 | ドイッチェ ナルコ−ヒェミー ゲーエムベーハー | How to prevent deposition in a building drainage system |
| JP4618740B2 (en) * | 2007-11-30 | 2011-01-26 | ケイコン株式会社 | Tunnel structure consisting of a roadway for monitoring roads and a drainage channel for roadway tunnels |
| CN102434175A (en) * | 2012-01-12 | 2012-05-02 | 中国市政工程西北设计研究院有限公司 | Tunnel lining self waterproof drainage system |
| CN105840210B (en) * | 2016-06-12 | 2018-09-21 | 中铁二院工程集团有限责任公司 | The compound arch tunnel lining structure in box tunnel bottom with hydrophobic function |
| CN206386150U (en) * | 2016-12-16 | 2017-08-08 | 中铁二院工程集团有限责任公司 | A kind of Underground Subway Station draining and examination and repair system |
| CN106640189B (en) * | 2017-02-22 | 2019-12-27 | 西南交通大学 | Pressure-bearing tunnel bottom structure drainage system and construction method thereof |
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2017
- 2017-08-31 CN CN201710772437.0A patent/CN107740708B/en active Active
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| CN107740708A (en) | 2018-02-27 |
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