CN111156037A - Construction structure and method capable of intensively treating large-scale water seepage of tunnel - Google Patents
Construction structure and method capable of intensively treating large-scale water seepage of tunnel Download PDFInfo
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- CN111156037A CN111156037A CN202010084560.5A CN202010084560A CN111156037A CN 111156037 A CN111156037 A CN 111156037A CN 202010084560 A CN202010084560 A CN 202010084560A CN 111156037 A CN111156037 A CN 111156037A
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- secondary lining
- new secondary
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title abstract description 7
- 239000011435 rock Substances 0.000 claims abstract description 22
- 239000011449 brick Substances 0.000 claims abstract description 16
- 239000004568 cement Substances 0.000 claims description 9
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 claims 2
- 238000001764 infiltration Methods 0.000 claims 2
- 238000012423 maintenance Methods 0.000 description 9
- 230000002265 prevention Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 229920000715 Mucilage Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- 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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- 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 discloses a construction structure and a method capable of intensively treating large-scale water seepage of a tunnel, which comprises the steps of excavating an annular cavity left after an original secondary lining brick with a certain width from a water seepage part of a secondary lining brick layer along the whole circumferential direction, pouring a new secondary lining in the annular cavity, excavating a groove along the circumferential direction on a surrounding rock layer corresponding to the outer side of the new secondary lining, arranging a double-wall corrugated pipe along the circumferential direction on the back of the new secondary lining in the groove, inserting a drainage pipe in a hole drilled in the surrounding rock layer above the top end of the new secondary lining, arranging a water drainage hole on the wall surface of the drainage pipe, and communicating the lower end of the drainage pipe with the double. According to the anti-seepage structure, the secondary lining of the water seepage part is replaced by the new secondary lining, then the drainage tube and the double-wall corrugated tube are installed, and the infiltrated water is drained to the road ditch through the drainage tube and the double-wall corrugated tube to be uniformly drained out of the tunnel, so that the water is prevented from infiltrating into the new secondary lining, and the tunnel anti-seepage performance is improved.
Description
Technical Field
The invention relates to the field of tunnel defect treatment, in particular to a construction structure and a method capable of intensively treating large-scale water seepage of a tunnel.
Background
In recent years, existing tunnels are built, the defects of cracking and water leakage of linings mostly appear, and the industry has a statement of 'ten tunnels and nine leaks'. The reason is that the water leakage tunnel mostly develops in a surrounding rock structure and passes through a fault, a fold and a fracture zone, joints and fractures develop extremely, and a geological structure is abnormal and complex, so that the shearing stress of the tunnel lining is concentrated, the lining is cracked, and a waterproof layer is damaged; when the tunnel passes through a limestone area, hidden karst and karst caves can be encountered, and the drainage quantity of the existing drainage system of the tunnel is insufficient, so that lining cracks or construction joints are infiltrated. How to treat tunnel water seepage, especially large-scale water seepage is an urgent engineering problem to be solved.
Disclosure of Invention
The invention aims to solve the technical problem of how to treat the tunnel seepage, in particular to the large-scale seepage, and aims to provide a construction structure and a method capable of treating the large-scale seepage of the tunnel in a centralized manner.
The invention is realized by the following technical scheme:
the invention relates to a construction structure for treating water seepage of a tunnel, which comprises an annular cavity left after an original secondary lining brick is dug along the whole circumferential direction from a water seepage position of a secondary lining brick layer, a new secondary lining is poured in the annular cavity, a corresponding surrounding rock layer on the outer side of the new secondary lining is also dug along the circumferential direction to form a groove, a double-wall corrugated pipe is arranged along the circumferential direction of the back of the new secondary lining in the groove, a drainage pipe is arranged in a hole in the surrounding rock layer above the top end of the new secondary lining, a water drainage hole is formed in the wall surface of the drainage pipe, and the lower end of the drainage pipe is communicated.
According to the anti-seepage structure, the secondary lining of the water seepage part is replaced by the new secondary lining, then the drainage tube and the double-wall corrugated tube are installed, and the infiltrated water is drained to the road ditch through the drainage tube and the double-wall corrugated tube to be uniformly drained out of the tunnel, so that the water is prevented from infiltrating into the new secondary lining, and the tunnel anti-seepage performance is improved. The original secondary lining bricks are directly dug at the penetration position, the secondary lining brick structure is poured again, and the double-wall corrugated pipe is tightly attached to the outer side of the new secondary lining brick structure close to the surrounding rock side, so that water flow of the surrounding rock layer is collected to the corrugated pipe through the drainage pipe and then is discharged to the ditches at the two sides to be uniformly discharged out of the tunnel, large-scale repairing work is not carried out, and the repairing efficiency and quality are improved. Wherein, the pipe diameter of the double-wall corrugated pipe is reasonably selected according to the width of the dug-out original secondary lining brick.
The upper end of the drainage tube is coated with non-woven fabrics.
And a cement-based crystallization layer is coated on the empty face of the new secondary lining facing the inner side, so that the seepage resistance of the joint between the new secondary lining and the original secondary lining is improved.
The drainage tube adopts a steel flower tube with the diameter of 42mm and the wall thickness of 4mm, the aperture of the drainage hole is 10mm, the longitudinal distance between the holes is 10cm, and the drainage holes are distributed in a quincunx shape.
And the gap between the double-wall corrugated pipe and the new secondary lining is filled with leakage-stopping cement.
A construction method capable of intensively treating large-scale water seepage of a tunnel comprises the following steps: 1) in a severe water seepage section, firstly, grouting on the top of surrounding rock to enable surrounding rock fracture water to be gathered in the middle area of a construction joint of the water seepage section; 2) removing the secondary lining on the whole ring direction within the length range of 50cm in the longitudinal direction of the middle area, and leaving a ring-shaped cavity; 3) upwards punching a hole at the top of the range of the annular cavity left by removing the lining, inserting a drainage tube, and drilling a drainage hole on the wall surface of the drainage tube; 4) digging a groove in a surrounding rock layer on the back of the annular cavity, then installing the whole ring of double-wall corrugated pipes in the groove, and pouring plugging mortar to fill the gap between the groove and the double-wall corrugated pipes; 5) and pouring reinforced concrete again in the annular cavity to form a new secondary lining, and coating the empty face of the new secondary lining with cement-based crystals.
According to the water seepage prevention construction method, the top of the two linings is grouted in advance at the large-scale water seepage and leakage sections, water at two ends of the serious water seepage section is driven to the middle of a construction joint through the grouted top, the water seepage section is concentrated to a small range, the secondary lining is dismantled in the small range, the drainage tube and the double-wall corrugated pipe are installed, and finally water is drained to the road ditch to be uniformly drained out of the tunnel, so that the tunnel seepage prevention performance is improved, the maintenance position is small, large-scale repair work cannot be carried out, the maintenance efficiency is improved, and manpower and material resources for large-scale maintenance are saved.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the construction structure and the method for intensively treating the large-scale water seepage of the tunnel have the advantages that the secondary lining of the water seepage part is replaced by the new secondary lining, then the drainage tube and the double-wall corrugated tube are installed, the permeated water flow is guided to the road surface ditch through the drainage tube and the double-wall corrugated tube to be uniformly discharged out of the tunnel, the water flow is prevented from permeating into the new secondary lining, and the tunnel seepage resistance is improved;
2. the construction structure and the method for intensively treating the large-scale water seepage of the tunnel have the advantages that the top of the two linings is grouted in advance, water at two ends of a section with serious water seepage is driven to the middle of a construction joint through the grouting, the water seepage section is centralized to a small range, the secondary lining is dismantled in the small range, the drainage tube and the double-wall corrugated tube are installed, finally, water is drained to a road ditch to be uniformly drained out of the tunnel, the maintenance position is small, large-scale repair work cannot be carried out, the maintenance efficiency is improved, and manpower and material resources for large-scale maintenance are saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the present invention.
Reference numbers and corresponding part names in the drawings:
1-annular cavity, 2-double-wall corrugated pipe, 3-drainage pipe, 4-water drainage hole, 5-cement-based crystallization layer and 6-leaking stoppage mucilage.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in figures 1 and 2, the construction structure for treating the water seepage of the tunnel comprises an annular cavity 1 left after an original secondary lining brick with a certain width is dug along the whole circumferential direction from the water seepage position of a secondary lining brick layer, a new secondary lining is poured in the annular cavity, a surrounding rock layer corresponding to the outer side of the new secondary lining is also dug along the circumferential direction to form a groove, a double-wall corrugated pipe 2 arranged along the circumferential direction of the back of the new secondary lining is arranged in the groove, a drainage pipe 3 is inserted into a hole in the surrounding rock layer above the top end of the new secondary lining, a water drainage hole 4 is formed in the wall surface of the drainage pipe 3, and the lower end of the drainage pipe 3 is communicated with.
According to the anti-seepage structure, the secondary lining of the water seepage part is replaced by the new secondary lining, then the drainage tube and the double-wall corrugated tube are installed, and the infiltrated water is drained to the road ditch through the drainage tube and the double-wall corrugated tube to be uniformly drained out of the tunnel, so that the water is prevented from infiltrating into the new secondary lining, and the tunnel anti-seepage performance is improved. The original secondary lining bricks are directly dug at the penetration position, the secondary lining brick structure is poured again, and the double-wall corrugated pipe is tightly attached to the outer side of the new secondary lining brick structure close to the surrounding rock side, so that water flow of the surrounding rock layer is collected to the corrugated pipe through the drainage pipe and then is discharged to the ditches at the two sides to be uniformly discharged out of the tunnel, large-scale repairing work is not carried out, and the repairing efficiency and quality are improved. Wherein, the pipe diameter of the double-wall corrugated pipe is reasonably selected according to the width of the dug-out original secondary lining brick.
Preferably, the upper end of the drainage tube is coated with a non-woven fabric.
Preferably, the face of the new secondary lining facing the inner side is coated with a cement-based crystalline layer 5, so that the seepage resistance of the joint between the new secondary lining and the original secondary lining is improved.
Preferably, the drainage tube is a steel flower tube with the diameter of 42mm and the wall thickness of 4mm, the aperture of the drainage holes is 10mm, the longitudinal distance between the holes is 10cm, and the drainage holes are distributed in a quincunx shape.
Preferably, the gap between the double-wall corrugated pipe and the new secondary lining is filled with plugging mortar 6.
A construction method capable of intensively treating large-scale water seepage of a tunnel comprises the following steps: 1) in a severe water seepage section, firstly, grouting on the top of surrounding rock to enable surrounding rock fracture water to be gathered in the middle area of a construction joint of the water seepage section; 2) removing the secondary lining on the whole ring direction within the length range of 50cm in the longitudinal direction of the middle area, and leaving a ring-shaped cavity; 3) upwards punching a hole at the top of the range of the annular cavity left by removing the lining, inserting a drainage tube, and drilling a drainage hole on the wall surface of the drainage tube; 4) digging a groove in a surrounding rock layer on the back of the annular cavity, then installing the whole ring of double-wall corrugated pipes in the groove, and pouring plugging mortar to fill the gap between the groove and the double-wall corrugated pipes; 5) and pouring reinforced concrete again in the annular cavity to form a new secondary lining, and coating the empty face of the new secondary lining with cement-based crystals.
According to the water seepage prevention construction method, the top of the two linings is grouted in advance at the large-scale water seepage and leakage sections, water at two ends of the serious water seepage section is driven to the middle of a construction joint through the grouted top, the water seepage section is concentrated to a small range, the secondary lining is dismantled in the small range, the drainage tube and the double-wall corrugated pipe are installed, and finally water is drained to the road ditch to be uniformly drained out of the tunnel, so that the tunnel seepage prevention performance is improved, the maintenance position is small, large-scale repair work cannot be carried out, the maintenance efficiency is improved, and manpower and material resources for large-scale maintenance are saved.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a handle construction structures of tunnel infiltration, a serial communication port, include that annular cavity (1) that leaves behind the former secondary lining brick of certain width is dug away along whole hoop direction from secondary lining brick layer infiltration department, pour new secondary lining in the annular cavity, the surrounding rock stratum that new secondary lining outside corresponds also digs along the hoop and is equipped with the recess, be provided with double-walled bellows (2) along the setting of new secondary lining back hoop in the recess, drainage tube (3) have been installed in the surrounding rock stratum of new secondary lining top hole punching, drainage hole (4) have been seted up on drainage tube (3) wall, the lower extreme and double-walled bellows (2) intercommunication of drainage tube (3).
2. The construction structure for treating water seepage of a tunnel according to claim 1, wherein the upper end of the drainage tube (3) is coated with a non-woven fabric.
3. A construction structure for treating seepage water in tunnels according to claim 1, wherein the facing surface of the new secondary lining facing the inside is coated with a cement-based crystalline layer (5).
4. The construction structure for treating the water seepage of the tunnel according to claim 1, wherein the drainage tube (3) is a steel perforated tube with a diameter of 42mm and a wall thickness of 4mm, the diameter of the drainage holes (4) is 10mm, the longitudinal distance between the holes is 10cm, and the drainage holes (4) are distributed in a quincunx shape.
5. The construction structure for treating seepage water of a tunnel according to claim 1, wherein the gap between the double-wall corrugated pipe (2) and the new secondary lining is filled with the plugging cement (6).
6. A construction method capable of intensively treating large-scale water seepage of a tunnel is characterized by comprising the following steps: 1) in a severe water seepage section, firstly, grouting the top of the surrounding rock to enable surrounding rock fracture water to be gathered in the middle area of a construction joint of the water seepage section; 2) removing the secondary lining on the whole ring direction within the length range of 50cm in the longitudinal direction of the middle area, and leaving a ring-shaped cavity; 3) upwards punching a hole at the top of the range of the annular cavity left by removing the lining, inserting a drainage tube, and drilling a drainage hole on the wall surface of the drainage tube; 4) digging a groove in a surrounding rock layer on the back of the annular cavity, then installing the whole ring of double-wall corrugated pipes in the groove, and pouring plugging mortar to fill the gap between the groove and the double-wall corrugated pipes; 5) and pouring reinforced concrete again in the annular cavity to form a new secondary lining, and coating the empty face of the new secondary lining with cement-based crystals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084560.5A CN111156037A (en) | 2020-02-10 | 2020-02-10 | Construction structure and method capable of intensively treating large-scale water seepage of tunnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084560.5A CN111156037A (en) | 2020-02-10 | 2020-02-10 | Construction structure and method capable of intensively treating large-scale water seepage of tunnel |
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| CN111156037A true CN111156037A (en) | 2020-05-15 |
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| CN202010084560.5A Pending CN111156037A (en) | 2020-02-10 | 2020-02-10 | Construction structure and method capable of intensively treating large-scale water seepage of tunnel |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0972197A (en) * | 1995-09-07 | 1997-03-18 | Shimizu Corp | Shield tunnel lining method and shield tunnel lining structure |
| CN202745937U (en) * | 2012-04-28 | 2013-02-20 | 兰州交通大学 | Hidden trench for concentrated seepage water guidance and drainage of existing tunnel in cold area |
| CN104912574A (en) * | 2015-06-29 | 2015-09-16 | 中南大学 | A tunnel lining leakage water treatment method |
| CN105484773A (en) * | 2015-12-25 | 2016-04-13 | 武汉市政工程设计研究院有限责任公司 | System plugging and draining structure for tunnel leakage treatment |
| CN106640154A (en) * | 2017-01-13 | 2017-05-10 | 中交四公局第工程有限公司 | Treatment method and structure for water seepage of tunnel lining circular construction joint crack |
| CN206319910U (en) * | 2016-12-19 | 2017-07-11 | 中交第一公路勘察设计研究院有限公司 | Infiltration disposal system is reinforced in a kind of tunnel-liner |
| CN107131001A (en) * | 2017-06-28 | 2017-09-05 | 中铁第四勘察设计院集团有限公司 | A kind of and water delivery and the Railway Tunnel of communication function |
| CN107905808A (en) * | 2017-12-27 | 2018-04-13 | 中铁二院工程集团有限责任公司 | The foundation carrying of falling groove-shaped longitudinal beam is without tunnel bottom structure arch lining cutting and its drainage system |
| CN109915180A (en) * | 2019-04-01 | 2019-06-21 | 大连市市政设计研究院有限责任公司 | A kind of Tunnel Second Lining cracking method for treating seepage |
| CN211623450U (en) * | 2020-02-10 | 2020-10-02 | 四川省交通勘察设计研究院有限公司 | Construction structure for treating water seepage of tunnel |
-
2020
- 2020-02-10 CN CN202010084560.5A patent/CN111156037A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0972197A (en) * | 1995-09-07 | 1997-03-18 | Shimizu Corp | Shield tunnel lining method and shield tunnel lining structure |
| CN202745937U (en) * | 2012-04-28 | 2013-02-20 | 兰州交通大学 | Hidden trench for concentrated seepage water guidance and drainage of existing tunnel in cold area |
| CN104912574A (en) * | 2015-06-29 | 2015-09-16 | 中南大学 | A tunnel lining leakage water treatment method |
| CN105484773A (en) * | 2015-12-25 | 2016-04-13 | 武汉市政工程设计研究院有限责任公司 | System plugging and draining structure for tunnel leakage treatment |
| CN206319910U (en) * | 2016-12-19 | 2017-07-11 | 中交第一公路勘察设计研究院有限公司 | Infiltration disposal system is reinforced in a kind of tunnel-liner |
| CN106640154A (en) * | 2017-01-13 | 2017-05-10 | 中交四公局第工程有限公司 | Treatment method and structure for water seepage of tunnel lining circular construction joint crack |
| CN107131001A (en) * | 2017-06-28 | 2017-09-05 | 中铁第四勘察设计院集团有限公司 | A kind of and water delivery and the Railway Tunnel of communication function |
| CN107905808A (en) * | 2017-12-27 | 2018-04-13 | 中铁二院工程集团有限责任公司 | The foundation carrying of falling groove-shaped longitudinal beam is without tunnel bottom structure arch lining cutting and its drainage system |
| CN109915180A (en) * | 2019-04-01 | 2019-06-21 | 大连市市政设计研究院有限责任公司 | A kind of Tunnel Second Lining cracking method for treating seepage |
| CN211623450U (en) * | 2020-02-10 | 2020-10-02 | 四川省交通勘察设计研究院有限公司 | Construction structure for treating water seepage of tunnel |
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| 杨松泉;: "野鸡山隧道渗水原因调查及防治", 内蒙古公路与运输, no. 04, 31 August 2011 (2011-08-31), pages 35 - 38 * |
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