CN111365039A - Tunnel water leakage treatment method - Google Patents
Tunnel water leakage treatment method Download PDFInfo
- Publication number
- CN111365039A CN111365039A CN202010217332.0A CN202010217332A CN111365039A CN 111365039 A CN111365039 A CN 111365039A CN 202010217332 A CN202010217332 A CN 202010217332A CN 111365039 A CN111365039 A CN 111365039A
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- leakage
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- drainage
- secondary lining
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000002265 prevention Effects 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims description 24
- 239000011347 resin Substances 0.000 claims description 24
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000004746 geotextile Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000003466 welding 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
- E21D11/383—Waterproofing; Heat insulating; Soundproofing; Electric insulating by applying waterproof flexible sheets; Means for fixing the sheets to the tunnel or cavity wall
-
- 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
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 relates to a method for treating tunnel water leakage, which comprises the following steps: the first heavy leakage prevention mechanism: plugging and drainage of existing leakage points; the second mechanism of preventing leakage: leading and discharging unknown leakage points; the third leakage prevention mechanism: and (4) preventing and treating water leakage of the tunnel. Compared with the prior art, the invention has the advantages of multiple leakage prevention, treatment according to different leakage conditions, environmental protection, attractive appearance and the like.
Description
Technical Field
The invention relates to the technical field of leakage prevention and control in tunnel operation, in particular to a method for treating tunnel leakage water.
Background
The tunnel leakage problem appears in the long-term operation in-process easily, even carry out relevant leaking stoppage, draw drainage measure, also can appear the water leakage phenomenon in other positions, be difficult to the radical cure, especially the leakage water of vault position directly drips on the road surface easily, causes driving tire to skid when the leakage water yield is great, crisis driving safety, and receives the influence of building limit in the tunnel, the drainage system space that draws of leakage water is limited, and need regularly to inspect the leakage water problem, consuming time hard.
The Chinese patent 'a structure and method for treating the inner surface-shaped leakage water of an operation tunnel' (patent No. 201611185529.0) mentions that a water-proof and drainage system for the secondary lining surface-shaped leakage water of a tunnel is formed by combining corrugated steel plates by utilizing transverse and longitudinal connecting bolts and anchor rods, the lining leakage water can flow downstream from a concave position of a corrugated steel structure to an arch foot and is discharged by a drainage pipe, and a heat-insulating material is filled between two layers of corrugated steel, so that the phenomenon that a waterproof layer falls off due to the fact that the freezing volume of the leakage water in a cold area is increased is prevented, however, the steel plates have large mass and certain potential safety hazards, and the cost for arranging the steel.
The Chinese patent 'a system leaking stoppage and drainage structure for treating the leakage in the tunnel' (patent No. 201510997216.4), proposes to carry out grouting and leaking stoppage between the secondary lining layer and the primary lining layer of the vault, chisels a drainage groove towards the side wall part at the leakage position of the tunnel, arranges a water conduit and a water collecting pipe to lead water to a drainage ditch in the tunnel ditch along the annular side wall to be discharged out of the tunnel, but the invention can not avoid new leakage points at the vault part in the later period and also needs to carry out multiple grouting and plugging.
Chinese patent "a tunnel lining drainage mechanism and application method with compensation" (patent number 201910641970.2), set up water receiving spare drainage to vertical drain pipe at the tunnel inner wall, set up rotatable compensation drain pipe at vertical drain pipe, with partial water drainage to the grit chamber to improve displacement, however, it aims at effectively promoting displacement when taking place a large amount of seepage to the local area, and water receiving spare is in case inefficacy, and the percolating water will be difficult to control.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method for treating tunnel water leakage.
The purpose of the invention can be realized by the following technical scheme:
a method for treating tunnel leakage water comprises the following steps:
the first heavy leakage prevention mechanism: plugging and drainage of existing leakage points;
the second mechanism of preventing leakage: leading and discharging unknown leakage points;
the third leakage prevention mechanism: and (4) preventing and treating water leakage of the tunnel.
In the first re-leakage prevention mechanism, after the tunnel is completed, the position where leakage occurs is firstly checked, and when leakage water occurs:
for planar leakage water: performing plugging treatment by adopting a grouting mode;
for linear or punctiform leakage water: and if the seepage flow is large, grouting and plugging are carried out, and if the seepage flow is small, grooving on the surface of the secondary lining to a drainage ditch.
The concrete arrangement mode from slotting to the drainage ditch on the surface of the secondary lining is as follows:
the depth of the groove is 2-3 cm, the width is less than or equal to 10cm, the groove opening is covered by a semicircular section opening hose, the radius of the semicircular section opening hose is slightly larger than the depth of the groove to prevent the hose from falling off, resin water stop strips are attached to the outer side of the hose along the groove opening direction according to a set distance and are fixed on the secondary lining by a shooting nail, and waterproof sealant is used for filling a gap between the hose and the secondary lining.
In the second anti-leakage mechanism, aiming at the water-rich section existing in the reconnaissance design and the leakage section occurring in the construction, the specific mode is as follows:
and fixing a longitudinal water collecting pipe at the arch springing of the secondary lining to collect the water leakage on the surface of the secondary lining.
In the second anti-leakage mechanism, for the situation that most of the tunnel section is in a high water pressure or water-rich stratum, the specific mode is as follows:
and arranging longitudinal water collecting pipes on the whole line, paving geotextile and waterproof boards on the whole line of the flat surface of the outer side of the secondary lining, wrapping the longitudinal water collecting pipes by the waterproof boards in a hook shape at the arch feet, and filling waterproof glue at the wrapping positions.
Vertical collector pipe be semi-circular hose, its opening up, vertically lay along the tunnel, the diameter is 8 ~ 12cm, vertical collector pipe is kept away from lining cutting one side and is equipped with the opening for connect the hoop drain pipe, hoop drain pipe and vertical collector pipe junction adopt epoxy to fill to the resin connecting piece of T font is established to the cover in the outside, and add the annular apron of lid and prevent leaking, hoop drain pipe connection to escape canal, the hoop drain pipe adopt the diameter to be 5 ~ 7 cm's hose, arrange with 0.5 m's interval on the tunnel is indulged, be used for realizing that the percolating water on secondary lining cutting surface flows to the final drainage of hoop drain pipe to escape canal through vertical collector pipe.
In the third anti-leakage mechanism, the prevention and control of the tunnel water leakage specifically comprises:
and paving a layer of flexible resin plate processed by PCL material on the outer side of the tunnel full-line waterproof plate.
The width of every ring of flexible resin board be 1m, thickness is 8 ~ 10mm, the resin board shape is unanimous with the tunnel inner wall to the laminating is in the waterproof board outside, and anchors according to setting for the interval, adopts epoxy to seal at the edge of resin board and encircle and handle.
When water leaks in linear or point shape, the drainage pipe is buried.
The laying mode of the annular drain pipe penetrates through the cable groove through drilling to enter the drainage ditch, or the annular drain pipe is laid on the surface of the maintenance channel to enter the drainage ditch.
Compared with the prior art, the invention has the following advantages:
firstly, the multiple anti-leakage mechanism provided by the invention adopts a comprehensive treatment mode of combining blockage, drainage and prevention, and compared with other single water leakage treatment methods, the multiple anti-leakage mechanism not only can treat the existing water leakage, but also can prevent and treat the possible leakage points in the future.
Secondly, the existing leakage is treated according to different leakage conditions, the planar leakage with larger flow is blocked, and linear and punctiform leakage points with smaller flow are designed with a leakage channel combining a rectangular groove and a semicircular hose on the surfaces of the two liners, so that the leakage water is directly drained to a drainage ditch; and arranging a seepage channel for unforeseen seepage points, wherein the seepage channel is arranged between the secondary lining and the waterproof board.
The invention is provided with a plurality of drainage paths, not only grooving drainage is carried out on leakage points, but also the longitudinal water collecting pipe is designed, compared with the prior method, the drainage paths are more, the drainage capability is improved by arranging the circumferential drainage pipes with the interval of 0.5m in the longitudinal direction, the flexible resin plate is laid on the outer side of the waterproof plate and is sealed by epoxy resin at the joint, the waterproof failure problem caused by the falling of the waterproof plate is effectively prevented, the flexible resin plate is light, environment-friendly and good in plasticity and is attached to the inner wall of the tunnel, meanwhile, the inner wall of the tunnel can be decorated, and the thickness is thinner, and the building boundary of the tunnel is not influenced.
Drawings
Fig. 1 is a drawing of a tunnel triple leakage prevention machine.
Figure 2 is a hose installation structure view of the secondary lining surface grooved to drain.
FIG. 3 is a block diagram of a secondary lining surface trenching to drain.
FIG. 4 is a schematic view of the structure of the secondary lining arch springing fixed with the longitudinal water collecting pipe.
FIG. 5 is a view showing the connection of the vertical header pipe to the drain pipe.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
The invention provides a more effective tunnel multiple anti-leakage method, which can not only plug the existing leakage points of the tunnel, but also guide the leakage water possibly occurring in the future long-term operation process of the tunnel to the drainage ditch, and meanwhile, the invention can decorate the inner wall of the tunnel, is environment-friendly and beautiful.
As shown in fig. 1, in order to solve the leakage problem of the tunnel, the present invention provides a triple leakage prevention mechanism, which specifically comprises:
the first heavy leakage prevention mechanism: after the tunnel is finished, firstly checking the position where leakage occurs, performing leakage blocking treatment on planar leakage water in a grouting mode, performing grouting blocking on linear or punctiform leakage water if the leakage flow rate is large, and grooving the surface of the secondary lining to a drainage ditch if the leakage flow rate is small, wherein as shown in figures 2 and 3, the grooving depth is 2-3 cm, the width is not more than 10cm, and a semicircular section opening hose is adopted to cover the groove opening, the radius of the semicircular hose is slightly larger than the grooving depth so as to prevent the hose from falling off, resin water stop strips are adhered to the outer side of the hose along the grooving direction at certain intervals and fixed on the secondary lining by using shooting nails, and a gap between the semicircular hose and the secondary lining is filled with waterproof sealant.
When the drainage pipe is grooved for existing point-shaped or linear leakage water, the section of the groove is not limited to be rectangular, and the drainage pipe can be buried without the groove.
The second mechanism of preventing leakage: as shown in fig. 4, for the water-rich section existing in the survey design and the leakage section occurring in the construction, a longitudinal water collecting pipe is fixed at the arch springing of the secondary lining for collecting the leakage water on the surface of the secondary lining, and the longitudinal water collecting pipe can be arranged on the whole line for the case that most of the tunnel section is in the high water pressure or water-rich stratum. And then, leveling the surface of the outer side of the secondary lining, paving geotextile and waterproof boards in a full-line manner, wherein the waterproof boards are in a hook shape at the arch feet to wrap the longitudinal water collecting pipes, and waterproof glue is adopted to fill the wrapping positions, so that the waterproof boards can prevent water and seal leaked water between the secondary lining and the waterproof boards, and the leaked water flows to the longitudinal water collecting pipes. The tunnel is vertically laid, the diameter is 8-12 cm, an opening is formed in one side, away from the lining, of the vertical water collecting pipe, the annular water discharging pipe is connected, the connection mode is shown in figure 5, the joint of the annular water discharging pipe and the vertical water collecting pipe is filled with epoxy resin, a T-shaped resin connecting piece is sleeved on the outer side of the annular water discharging pipe, and an annular cover plate is covered to prevent water leakage. The hoop drain pipe is connected to the escape canal, the hoop drain pipe diameter be 5 ~ 7 cm's hose, arrange with 0.5 m's interval in the tunnel longitudinal direction. The leakage water on the surface of the secondary lining can flow to the annular drainage pipe through the longitudinal water collecting pipe and finally is drained to a drainage ditch.
The third leakage prevention mechanism: the one deck flexible resin board that is processed into by PCL material is laid in the whole line waterproof board outside in tunnel, the every width that encircles of resin board be 1m, thickness is 8 ~ 10mm, the resin board shape is unanimous with the tunnel inner wall, the laminating is in the waterproof board outside to anchor according to the uniform spacing, seal the processing with epoxy at the edge of resin board and between ring and the ring, every fixed ring resin board seals immediately.
In this example, the annular drain pipe can be laid by drilling holes through the cable groove to enter the drain ditch, or laying holes on the surface of the access road to enter the drain ditch.
The resin plate can be installed by adopting bolt connection and welding of a hot melting device, and other flexible and easily-formed materials can be replaced by the resin plate.
Claims (10)
1. A method for treating tunnel water leakage is characterized by comprising the following steps:
the first heavy leakage prevention mechanism: plugging and drainage of existing leakage points;
the second mechanism of preventing leakage: leading and discharging unknown leakage points;
the third leakage prevention mechanism: and (4) preventing and treating water leakage of the tunnel.
2. The method as claimed in claim 1, wherein the first anti-seeping mechanism checks the location where the seeping occurs first after the tunnel is completed, and when the seeping occurs:
for planar leakage water: performing plugging treatment by adopting a grouting mode;
for linear or punctiform leakage water: and if the seepage flow is large, grouting and plugging are carried out, and if the seepage flow is small, grooving on the surface of the secondary lining to a drainage ditch.
3. The method for treating tunnel water leakage according to claim 2, wherein the specific arrangement mode of slotting the secondary lining surface to the drainage ditch is as follows:
the depth of the groove is 2-3 cm, the width is less than or equal to 10cm, the groove opening is covered by a semicircular section opening hose, the radius of the semicircular section opening hose is slightly larger than the depth of the groove to prevent the hose from falling off, resin water stop strips are attached to the outer side of the hose along the groove opening direction according to a set distance and are fixed on the secondary lining by a shooting nail, and waterproof sealant is used for filling a gap between the hose and the secondary lining.
4. The method for treating tunnel water leakage according to claim 1, wherein in the second leakage prevention mechanism, for the water-rich section existing in the survey design and the leakage section occurring in the construction, the specific method is as follows:
and fixing a longitudinal water collecting pipe at the arch springing of the secondary lining to collect the water leakage on the surface of the secondary lining.
5. The method for treating tunnel water leakage according to claim 4, wherein in the second leakage prevention mechanism, for the case that most of the tunnel region is in the high water pressure or water-rich stratum, the specific manner is as follows:
and arranging longitudinal water collecting pipes on the whole line, paving geotextile and waterproof boards on the whole line of the flat surface of the outer side of the secondary lining, wrapping the longitudinal water collecting pipes by the waterproof boards in a hook shape at the arch feet, and filling waterproof glue at the wrapping positions.
6. The method according to claim 5, wherein the longitudinal water collecting pipes are semicircular hoses, the openings of the semicircular hoses face upwards, the semicircular hoses are laid longitudinally along the tunnel and have the diameter of 8-12 cm, openings are formed in the sides, away from the lining, of the longitudinal water collecting pipes and are used for connecting annular water discharging pipes, the joints of the annular water discharging pipes and the longitudinal water collecting pipes are filled with epoxy resin, T-shaped resin connecting pieces are sleeved on the outer sides of the annular water discharging pipes and are covered with annular cover plates to prevent water leakage, the annular water discharging pipes are connected to the drainage ditches, the annular water discharging pipes are hoses with the diameter of 5-7 cm and are arranged at intervals of 0.5m in the longitudinal direction of the tunnel, and water leaking from the surface of the secondary lining flows to the annular water discharging pipes through the longitudinal water collecting pipes and is.
7. The method for treating tunnel water leakage according to claim 1, wherein in the third leakage prevention mechanism, the prevention and treatment of tunnel water leakage specifically comprises:
and paving a layer of flexible resin plate processed by PCL material on the outer side of the tunnel full-line waterproof plate.
8. The method according to claim 7, wherein the flexible resin plate has a width of 1m per ring and a thickness of 8 to 10mm, the shape of the resin plate is identical to the inner wall of the tunnel, the resin plate is attached to the outer side of the waterproof plate and anchored at a predetermined interval, and the resin plate is sealed at the edges and between the rings with epoxy resin.
9. The method as claimed in claim 2, wherein the drainage is performed by burying drainage pipes when water leaks in a line or point shape.
10. The method of claim 6, wherein the circumferential drain pipe is installed to penetrate through the cable groove to enter the drainage ditch by drilling, or to be installed to enter the drainage ditch on the surface of the service aisle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010217332.0A CN111365039B (en) | 2020-03-25 | 2020-03-25 | Tunnel water leakage treatment method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010217332.0A CN111365039B (en) | 2020-03-25 | 2020-03-25 | Tunnel water leakage treatment method |
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| CN111365039A true CN111365039A (en) | 2020-07-03 |
| CN111365039B CN111365039B (en) | 2021-08-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112983499A (en) * | 2021-03-04 | 2021-06-18 | 南京康泰建筑灌浆科技有限公司 | Comprehensive radical treatment leaking stoppage reinforcing method for gaps of tunnel |
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| Publication number | Publication date |
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| CN111365039B (en) | 2021-08-06 |
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