CN109915180B - Tunnel secondary lining cracking leakage treatment method - Google Patents
Tunnel secondary lining cracking leakage treatment method Download PDFInfo
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- CN109915180B CN109915180B CN201910257406.0A CN201910257406A CN109915180B CN 109915180 B CN109915180 B CN 109915180B CN 201910257406 A CN201910257406 A CN 201910257406A CN 109915180 B CN109915180 B CN 109915180B
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- 238000005336 cracking Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000010276 construction Methods 0.000 claims abstract description 29
- 239000003292 glue Substances 0.000 claims abstract description 14
- 238000005553 drilling Methods 0.000 claims abstract description 7
- 239000011435 rock Substances 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims 1
- 201000010099 disease Diseases 0.000 abstract description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 8
- 239000000945 filler Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention provides a method for treating cracking and leakage of a secondary lining of a tunnel. The invention comprises the following steps: dividing a water leakage plugging area and a water leakage dredging area, and completely cutting off construction joints and settlement joints to be repaired in the water leakage dredging area; slotting along the construction joint and the settlement joint at a position which is half of the lining thickness, uniformly drilling towards the rock surface in the slot along the longitudinal direction of the slot, and placing a blind pipe in the slot; introducing water to a side ditch under a road in the tunnel by using a PVC drainage pipeline at the bottom of the blind pipe, and filling fine aggregate concrete outside the blind pipe; and (3) pouring waterproof leakage-stopping glue into the cracks through the grouting pipes for all construction joints, settlement joints and structural cracking joints in the water leakage-stopping area. The invention adopts a method of combining drainage and blockage to treat the water leakage of the tunnel. The cracks in the tunnel water leakage plugging area are filled with crack glue, a water outlet channel is sealed, the cracks in the tunnel water leakage dredging area are expanded, a water seepage blind pipe is buried underground, water is drained, tunnel leakage diseases are effectively solved, and construction cost is reduced.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to a method for treating cracking and leakage of a secondary lining of a tunnel.
Background
In a tunnel by a mine method, after construction, diseases such as structural cracking and leakage often occur, a method of lining back grouting or glue injection for crack plugging is often adopted in a traditional method, however, water is not porous and can not enter, the problem of leakage cannot be solved by simple plugging, and the problem that water leaks from other places after grouting plugging is just completed is often solved.
Therefore, the industry needs a new method for treating the secondary lining cracking leakage of the tunnel, which can effectively solve the tunnel leakage disease, reduce the construction cost and ensure the driving safety.
Disclosure of Invention
According to the technical problems, the method for treating the cracking and leakage of the secondary lining of the tunnel is provided. The technical means adopted by the invention are as follows:
a method for treating cracking and leakage of a secondary lining of a tunnel comprises the following steps:
s1, dividing the secondary lining cracking leakage area of the tunnel into a tunnel water leakage blocking area and a tunnel water leakage dredging area, wherein the water leakage dredging area is an area from the top surface of the cable trench to a preset height, and the water leakage blocking area is an area above the preset height of the top surface of the cable trench;
s2, completely cutting the construction joints and settlement joints to be repaired in the water leakage dredging area, cleaning sundries in the joints, slotting at the position half the distance from the construction joints and the settlement joints to the lining thickness, uniformly drilling holes in the groove along the longitudinal direction of the slot to the rock surface, and placing blind pipes in the groove;
s3, introducing water to a side ditch under a road in the tunnel by using a PVC drainage pipeline at the bottom of the blind pipe, filling fine aggregate concrete outside the blind pipe, and laying a heat insulation material outside the fine aggregate concrete for heat insulation treatment;
s4, cleaning all construction joints, settlement joints and structural cracking joints in the water leakage plugging area to ensure that no sundries exist in the joints, and filling waterproof plugging glue into the cracks through a grouting pipe.
Further, in the step S1, the preset height is 2 m.
Further, in the step S1, the widths of the cut construction joints and the sedimentation joints are not less than 2 cm.
Further, in the step S2, the uniform drilling distance is 20-25 cm.
Further, in the step S3, the fine aggregate concrete is filled according to the ratio of 1.1-1.3 kg/m3Polypropylene fibers are added and a predetermined amount of an expanding agent is added.
Further, in the step S3, a 3-4cm extruded sheet is arranged on the outermost layer of the fine aggregate concrete, and the outer side of the extruded sheet is blocked by polymer mortar and mesh cloth.
In step S3, C30 concrete is used as the fine aggregate concrete, and alkali-resistant fiberglass mesh is used as the mesh.
Furthermore, the blind pipe is a spring water discharge pipe, blind pipe fixing pieces are arranged on the outer side of the spring water discharge pipe, and one blind pipe fixing piece is arranged at a distance of 50 cm.
Furthermore, the inner cracks of the tunnel comprise annular temperature joints, annular construction joints and branched concrete cracks, wherein elastic waterproof leakage-stopping glue is injected into the annular temperature joints, and concrete crack repairing glue is injected into the annular construction joints and the branched concrete cracks.
Further, the grouting pipe is inserted into a position half of the thickness of the lining.
The invention has the following advantages: the invention adopts a method of combining drainage and blockage to treat the water leakage of the tunnel. The crack in the tunnel shutoff district that leaks adopts the crack to glue fills, seals the passageway of going out water, expands the crack in tunnel mediation district that leaks to bury the infiltration blind pipe underground, draw water out, effectual solution tunnel seepage disease reduces construction cost, guarantees driving safety.
Based on the reasons, the method can be widely popularized in the technical field of tunnel construction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the concrete treatment process of the tunnel secondary lining cracking leakage treatment method of the invention,
FIG. 2 is a schematic view of the grouting process of the water leakage plugging area in the tunnel leakage cracking treatment of the invention,
FIG. 3 is a schematic view of the buried blind pipe and the surrounding filler according to the present invention.
In the figure: 1. grooving; 2. drilling; 3. a blind pipe; 4. PVC elbows; 5. a drain pipe; 6. a drain cover plate; 7. a drainage ditch; 8. a grouting pipe; 9. repairing glue; 10. lining the cracks; 11. a blind pipe fixing part; 12. fine stone concrete; 13. extruding a plastic plate; 14. polymer mortar and mesh cloth.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the embodiment provides a method for treating leakage and cracking of a secondary lining of a tunnel, which specifically comprises the following steps:
s1, dividing a cracking leakage area of the secondary lining of the tunnel into a tunnel water leakage blocking area and a tunnel water leakage dredging area, wherein the water leakage dredging area is an area from the top surface of the cable trench to a preset height, the water leakage blocking area is an area above the preset height of the top surface of the cable trench, and the preset height is selected to be 2m in the embodiment;
and S2, completely cutting the construction joints and the settlement joints to be repaired in the water leakage dredging area, wherein the widths of the cutting construction joints and the settlement joints are not less than 2 cm. Cleaning up sundries in the seams; and for the construction joint or the settlement joint provided with the water stop, the construction joint or the settlement joint is cut, and the groove 1 is formed at the position half the distance from the construction joint and the settlement joint to the lining thickness, wherein the specific method of the groove 1 can adopt a mode of firstly cutting two edges by a toothless saw and then chiseling by an air pick. Drilling holes 2 longitudinally and uniformly towards the rock surface in the groove 1, and placing blind pipes 3 in the groove 1;
s3, guiding water to a side ditch 7 under a road in a tunnel by using a PVC drain pipe 5 at the bottom of a blind pipe, filling fine aggregate concrete 12 outside the blind pipe, laying a heat insulation material outside the fine aggregate concrete to serve as a connecting member which can change the water flow direction and is provided with a PVC elbow 4 and the like between the heat insulation treatment blind pipe and the PVC drain pipe 5, wherein the PVC drain pipe 5 can be directly connected in a drain hole of a drain ditch cover plate 6;
s4, cleaning all construction joints, settlement joints and structural cracking joints 10 in the water leakage plugging area to ensure that no sundries exist in the joints, and pouring waterproof plugging glue 9 into the joints through a grouting pipe 8, wherein the water leakage plugging area is an area above the preset height of the top surface of the cable trench.
In a preferred embodiment, the distance between the uniform drilled holes 2 is 20-25 cm, and the hole pitch of the uniform drilled holes is 25cm, so that water behind the lining can be uniformly guided out.
In order to ensure the dense filling in the groove, as a preferred embodiment, 1.1 to 1.3kg/m of fine aggregate concrete 12 is filled3Adding polypropylene fibers and a predetermined amount of an expanding agent, as used in this example1.2kg/m3。
In order to ensure that water in the blind pipes 3 is not frozen in winter, as a preferred embodiment, a 3-4cm extruded sheet 13 is arranged on the outermost layer of the fine aggregate concrete 12, and the outer side of the extruded sheet 13 is sealed by polymer mortar and mesh cloth 14. Preferably, C30 concrete is used as the fine aggregate concrete, and alkali-resistant fiberglass mesh cloth is used as the mesh cloth.
In a preferred embodiment, the blind pipe is a spring drain pipe, blind pipe fixing pieces 11 are arranged on the outer side of the spring drain pipe for fixing the blind pipe, one blind pipe fixing piece 11 is arranged at a distance of 50cm, and the blind pipe fixing pieces are fastened through a shooting nail.
The inner cracks of the tunnel comprise annular temperature joints, annular construction joints and branched concrete cracks, wherein elastic waterproof leakage-stopping glue is injected into the annular temperature joints, and concrete crack repairing glue is injected into the annular construction joints and the branched concrete cracks. In order to facilitate grouting, the grouting pipe is inserted into a position half of the lining thickness.
Specifically, water is discharged from the holes 2 into the blind pipes 3 in the gutter 1, and the water discharged through the cover plate 6 of the drainage gutter flows into the drainage gutter 7.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A tunnel secondary lining cracking leakage treatment method is characterized by comprising the following steps:
s1, dividing a secondary lining cracking leakage area of the tunnel into a tunnel water leakage blocking area and a tunnel water leakage dredging area, wherein the water leakage dredging area is an area from the top surface of the cable trench to a preset height, and the water leakage blocking area is an area above the preset height;
s2, completely cutting the construction joints and settlement joints to be repaired in the water leakage dredging area, cleaning sundries in the joints, slotting at the position half the distance from the construction joints and the settlement joints to the lining thickness, uniformly drilling holes in the groove along the longitudinal direction of the slot to the rock surface, and placing blind pipes in the groove;
s3, introducing water to a side ditch under a road in the tunnel by using a PVC drainage pipeline at the bottom of the blind pipe, filling fine aggregate concrete outside the blind pipe, and laying a heat insulation material outside the fine aggregate concrete for heat insulation treatment; filling fine stone concrete according to the proportion of 1.1-1.3 kg/m3Adding polypropylene fiber and a preset amount of expanding agent;
s4, cleaning all construction joints, settlement joints and structural cracking joints in the water leakage plugging area to ensure that no sundries exist in the joints, and pouring waterproof plugging glue into the cracks through a grouting pipe;
the inner cracks of the tunnel comprise annular temperature joints, annular construction joints and branched concrete cracks, wherein elastic waterproof leakage-stopping glue is injected into the annular temperature joints, concrete crack repairing glue is injected into the annular construction joints and the branched concrete cracks, and the grouting pipes are inserted into the positions half of the lining thickness.
2. The method for treating leakage from cracking of a secondary tunnel lining according to claim 1, wherein in step S1, the preset height is 2 m.
3. The method for treating leakage from cracking of a secondary tunnel lining as claimed in claim 1, wherein in step S2, the widths of the cut construction joints and settlement joints are not less than 2 cm.
4. The method for treating the cracking leakage of the secondary tunnel lining according to claim 1, wherein in the step S2, the uniform drilling distance is 20-25 cm.
5. The method for treating cracking and leakage of the secondary lining of the tunnel according to claim 1, wherein in the step S3, the heat preservation treatment is to arrange a 3-4cm extruded sheet on the outermost layer of the fine aggregate concrete, and the outer side of the extruded sheet is blocked by polymer mortar and mesh cloth.
6. The method for treating leakage from secondary tunnel lining cracking as claimed in claim 5, wherein in step S3, C30 concrete is used as fine aggregate concrete, and alkali-resistant fiberglass mesh is used as mesh.
7. The method for treating the cracking leakage of the secondary lining of the tunnel according to claim 1, wherein the blind pipe is a spring drainage pipe, blind pipe fixing pieces are arranged on the outer side of the spring drainage pipe, and one blind pipe fixing piece is arranged at a distance of 50 cm.
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| CN201910257406.0A CN109915180B (en) | 2019-04-01 | 2019-04-01 | Tunnel secondary lining cracking leakage treatment method |
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| CN201910257406.0A CN109915180B (en) | 2019-04-01 | 2019-04-01 | Tunnel secondary lining cracking leakage treatment method |
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| CN109915180A CN109915180A (en) | 2019-06-21 |
| CN109915180B true CN109915180B (en) | 2021-02-12 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111156037A (en) * | 2020-02-10 | 2020-05-15 | 四川省交通勘察设计研究院有限公司 | Construction structure and method capable of intensively treating large-scale water seepage of tunnel |
| CN111140264A (en) * | 2020-04-02 | 2020-05-12 | 中铁工程设计咨询集团有限公司 | Method for treating water leakage of cracks of tunnel concrete lining structure |
| CN111550263A (en) * | 2020-06-09 | 2020-08-18 | 中国十七冶集团有限公司 | Construction method for treating longitudinal non-through cracks on side surface of tunnel section hole body |
| CN111535829A (en) * | 2020-06-09 | 2020-08-14 | 中国十七冶集团有限公司 | Construction method for treating longitudinal through cracks on side surface of tunnel section hole body |
| CN112901222B (en) * | 2021-02-23 | 2023-03-28 | 中铁五局集团有限公司 | Treatment process for concrete water seepage cracks of inverted arch of tunnel |
| CN113090289B (en) * | 2021-03-22 | 2024-03-01 | 中国神华能源股份有限公司神朔铁路分公司 | Method and system for treating leakage water of tunnel construction joint |
| CN115045686B (en) * | 2022-06-23 | 2023-08-04 | 同济大学 | Method for reinforcing subway shield tunnel by corrugated steel |
| CN115789395B (en) * | 2023-02-10 | 2023-04-11 | 山东高原油气装备有限公司 | A prosthetic devices for inside lining oil pipe |
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| CN203161256U (en) * | 2013-03-08 | 2013-08-28 | 中铁二十二局集团第一工程有限公司 | Large-span swelling rock tunnel system in severe cold area |
| CN203161259U (en) * | 2013-03-28 | 2013-08-28 | 上海大学 | Buried-in type rubber water-stop belt of double-layer waterproof structure and construction-joint water drainage structure formed by buried-in type rubber water-stop belt |
| 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 |
| CN206539354U (en) * | 2017-03-08 | 2017-10-03 | 山西交科桥梁隧道加固维护工程有限公司 | A kind of tunnel double-lining surface seep water cure structure |
| CN107327308A (en) * | 2017-07-13 | 2017-11-07 | 高军 | A kind of Railway Tunnel waterproof method |
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Denomination of invention: A Treatment Method for Cracking and Leakage of Tunnel Secondary Lining Effective date of registration: 20221031 Granted publication date: 20210212 Pledgee: Industrial Bank Limited by Share Ltd. Dalian branch Pledgor: DALIAN MUNICIPAL DESIGN & RESEARCH INSTITUTE Co.,Ltd. Registration number: Y2022980020373 |
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Granted publication date: 20210212 Pledgee: Industrial Bank Limited by Share Ltd. Dalian branch Pledgor: DALIAN MUNICIPAL DESIGN & RESEARCH INSTITUTE Co.,Ltd. Registration number: Y2022980020373 |