CN111396099B - Water seepage prevention construction method for two-lining connecting joint in tunnel - Google Patents
Water seepage prevention construction method for two-lining connecting joint in tunnel Download PDFInfo
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- CN111396099B CN111396099B CN202010238484.9A CN202010238484A CN111396099B CN 111396099 B CN111396099 B CN 111396099B CN 202010238484 A CN202010238484 A CN 202010238484A CN 111396099 B CN111396099 B CN 111396099B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention discloses a water seepage prevention construction method for a two-lining connecting joint in a tunnel, which comprises the following steps of: step one, annularly laying a first mould second lining waterproof plate at the end template position of the primary support surface; secondly, performing repair welding on the annular waterproof plate at the lap joint position of the first mold second-lining waterproof plate and the second mold second-lining waterproof plate; and step three, turning over the free end of the third layer of annular waterproof board, wherein the turned over free end is in a barb shape and is embedded into the second lining concrete. The invention can effectively solve the problems that the water seepage occurs when the water seeps from the position of the damaged waterproof plate to the damaged buried water stop and the water seepage occurs when the water seeps to the connecting joint of the two linings on the periphery.
Description
Technical Field
The invention relates to a water seepage prevention construction method for a two-lining connecting joint in a tunnel. More particularly, the invention relates to a method for constructing a waterproof board at the position of a two-lining connecting seam.
Background
After the tunnel construction is finished, the phenomenon of water leakage is frequent, and the phenomenon is particularly frequent in tunnels with rich water, broken surrounding rocks and long operation time. Aiming at the water leakage phenomenon during the tunnel operation, various expert scholars summarize and conclude, and the reason is considered as follows: the waterproof board is torn or punctured, the impermeability grade of the second lining concrete is not enough, the construction quality of the second lining concrete is not up to standard, the waterproof board is not laid and constructed according to the standard, and the like.
For the situation of water leakage in the tunnel, the following methods are often adopted to solve the problem at present: for example, the surface of a primary support is leveled before the waterproof board is laid, a circumferential drainage blind pipe is additionally arranged at a water-rich section, the impermeability grade of concrete is improved, the laying and welding quality of the waterproof board is improved, and the like. The treatment measures effectively relieve the situation of water leakage of the tunnel to a certain extent. However, in the case of the water-rich tunnel, even if the above-described method is actively adopted, there is still a case where a large amount of leakage water seeps from the joint of the two liners. When the water quantity of a part of tunnels is large, the water seepage of the tunnels even seeps through the two peripheral linings and seeps into the third and fourth mould second linings nearby, the reason is mainly influenced by construction errors, the surface of the primary support of the tunnel cannot be absolutely flat, the waterproof board is punctured or torn, so that the water seepage after the primary support is caused from the punctured and torn position, the water seepage continues along the uneven joint surfaces of the primary support and the waterproof board and the two linings, and the vault crown of the secondary lining is in site construction, the defect that the vault is partially hollowed is difficult to effectively avoid, the seepage of the seepage water body is caused along the gap between the waterproof board and the two linings, and the water seepage is caused along the damaged position of the damaged buried water stop belt at the position of the connecting seam of the secondary lining.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and aims to effectively solve the problems that the water seepage occurs when the water seeps from the position of the damaged waterproof plate to the damaged buried water stop and the water seepage occurs when the water seeps to the peripheral two-lining connecting seam, and the problem that the water seeps to the peripheral two-lining connecting seam needs to be solved, and the water seepage prevention device can be matched with the annular drainage blind pipe to realize the effects of blocking, draining and combining and comprehensively controlling water.
To achieve these objects and other advantages and in accordance with the purpose of the invention, a method for constructing a tunnel with two lining joints impermeable to water is provided, which comprises the steps of:
step one, annularly laying a first mould second lining waterproof board at the position of an end template on the primary support surface, and reserving the lap joint length of the first mould second lining waterproof board and the second mould second lining waterproof board during laying, wherein the lap joint length is more than or equal to 100 mm;
step two, performing repair welding of the annular waterproof plate at the lap joint position of the first mold second-lining waterproof plate and the second mold second-lining waterproof plate, wherein the repair welding requirements are as follows:
1) welding a third layer of annular waterproof plate at the lap joint position of the first mold second lining waterproof plate and the second mold second lining waterproof plate;
2) the longitudinal section of the third layer of circumferential waterproof plate is in a shape of 7, and the length of the third layer of circumferential waterproof plate subjected to repair welding is larger than the overlapping length of the first mold second lining waterproof plate and the second mold second lining waterproof plate;
3) the third layer of repair welding circumferential waterproof board is divided into a fixed welding end and a free end, the fixed welding end is welded and fixed at the lap joint position of the first mould second lining waterproof board and the second mould second lining waterproof board through a hot melting climbing welding machine, the longitudinal section of the fixed welding end is a 'one' part in a '7' shape, and the length of the fixed welding end is more than or equal to 100 mm;
4) the free end of the third layer of annular waterproof board is turned over towards the radial direction of the tunnel, the turned free end is perpendicular to the fixed welding end, the longitudinal section of the free end is I part in the shape of 7, and the length of the free end is more than or equal to 150 mm;
step three, turning over the free end of the third layer of annular waterproof board, wherein the turned over free end is in a shape of a barb; when the connecting joint is a construction joint, the free end of the turned third layer of annular waterproof board is positioned outside the longitudinal steel bar, and the length of the turned third layer of annular waterproof board entering the second lining concrete is more than or equal to 100 mm; when the connecting joint is a deformation joint, because the connecting joint is not connected with the longitudinal steel bars, when the free end of the third layer of annular waterproof plate is turned over, the length of the second layer of annular waterproof plate which is not turned over and enters the second layer of annular waterproof plate is larger than or equal to 100mm, and the length of the second layer of annular waterproof plate which is turned over and enters the second layer of annular waterproof plate is larger than or equal to 150 mm.
Preferably, in the first step, after the primary support is finished and before the secondary lining concrete is poured, the surface of the primary support is leveled, and the first mould secondary lining waterproof board is laid after the geotextile is hung.
Preferably, in the second step, the welding of the overlapping part of the first mold second liner waterproof board and the second mold second liner waterproof board is completed through a hot melting climbing welding machine, and meanwhile, the air tightness inspection is performed on the welding position.
Preferably, the airtightness inspection detects the sealability of the overlapped portion using a gas pressure detection method.
Preferably, a circumferential drainage blind pipe is pre-buried between the secondary lining concrete and the primary support concrete of the tunnel.
Preferably, a buried water stop is arranged between the construction joint/deformation joint between the two die tunnel liners.
The invention at least comprises the following beneficial effects:
1) the seepage-proofing construction method for the connecting joint of the two linings in the tunnel can block the seepage and seepage passage at the joint of the two linings and prevent seepage water from diffusing to the two linings of the next mold.
2) The seepage-proofing construction method for the two-lining connecting joint in the tunnel can effectively prevent seepage water from seeping from the two-lining construction joint or the connecting joint and effectively prevent seepage water from the two linings.
3) Compared with other waterproof methods, the method has the advantages of simple construction, lower cost and good waterproof effect.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of the construction method for preventing water seepage of a connecting joint of two linings in a tunnel according to the invention;
FIG. 2 is a construction effect diagram of comparative example 1;
fig. 3 is a construction effect diagram of embodiment 1.
Description of reference numerals: 1-surrounding rock; 2-primary branch; 3-first mould second lining waterproof board; 4-first mold second liner; 5-second mold second liner; 6-casting a vault cavity by using a secondary lining; 7-a waterproof board puncture point; 8-fixing the welding end; 9-free end; 10-a buried water stop; 11 connecting seams; 12-a lap joint section; 13-second mold second liner flashing.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.
In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1, a water seepage prevention construction method for a tunnel inner two-lining connecting joint 11 comprises the following steps:
firstly, after tunnel surrounding rock 1 is excavated, primary supporting construction is carried out, after primary support 2 is constructed and before secondary lining concrete is poured, the surface of the primary support 2 is firstly leveled, drainage blind pipes are pre-buried between the secondary lining concrete and the primary support 2 concrete of the tunnel, geotextile is hung, annular laying of a first mold secondary lining waterproof plate 3 is carried out at the end template position of the surface of the primary support 2, the lap joint length of the first mold secondary lining waterproof plate 13 is reserved during laying, and the lap joint length is larger than or equal to 100 mm.
Secondly, performing repair welding of the annular waterproof plate at the lap joint position of the first mold second-liner waterproof plate 3 and the second mold second-liner waterproof plate 13, completing welding of the lap joint section 12 of the first mold second-liner waterproof plate 3 and the second mold second-liner waterproof plate 13 through a hot melting climbing welding machine, and simultaneously performing air tightness inspection on the welding position; the air tightness inspection adopts an air pressure detection method to detect the tightness of the lap joint part; the repair welding requirements are as follows:
1) a third layer of annular waterproof plate is welded at the lap joint position of the first mold second lining waterproof plate 3 and the second mold second lining waterproof plate 13 in a repair mode;
2) the longitudinal section of the third layer of repair-welded annular waterproof board is in a shape like a Chinese character '7', and the length of the repair-welded third layer of annular waterproof board is greater than the lap joint length of the first mold second lining waterproof board 3 and the second mold second lining waterproof board 13;
3) the third layer of annular waterproof board is divided into a fixed welding end 8 and a free end 9, the fixed welding end 8 is welded and fixed at the lap joint position of the first mould second lining waterproof board 3 and the second mould second lining waterproof board 13 through a hot melting creeping welding machine, the longitudinal section of the fixed welding end 8 is a 'one' part in a '7' shape, and the length of the fixed welding end 8 is more than or equal to 100 mm;
4) turning over a free end 9 of the third layer of annular waterproof plate towards the radial direction of the tunnel, wherein the turned over free end 9 is perpendicular to the fixed welding end 8, the longitudinal section of the free end 9 is I-shaped in a shape like a Chinese character '7', and the length of the free end 9 is more than or equal to 150 mm;
step three, turning over the free end 9 of the third layer of annular waterproof board, wherein the turned over free end 9 is in a shape of a barb; when the connecting joint 11 is a construction joint, the free end 9 of the turned third layer of annular waterproof board is arranged on the outer side of the longitudinal steel bar, and the length of the turned third layer of annular waterproof board entering the second lining concrete is more than or equal to 100 mm; when the connecting joint 11 is a deformation joint, because no longitudinal steel bar is connected, when the free end 9 of the third layer of annular waterproof board is turned over, the length of the second-lining concrete which is not turned over is larger than or equal to 100mm, and the length of the second-lining concrete which is turned over is larger than or equal to 150 mm.
And fourthly, arranging a buried water stop belt 10 between the construction joints/deformation joints between the two liners of the two-mould tunnel, and mainly aiming at preventing infiltration of the infiltration water body between the construction joints/deformation joints of the two liners.
Comparative example 1
The tunnel of a certain highway is located in subtropical regions, the annual rainfall is abundant, the tunnel is a river origin place, the tunnel passes through a stroke layer of the river twice, and surface water and underground water are abundant. The tunnel crossing section rock mass joint crack develops, surface water is easy to supplement underground water, and the construction process adopted in the early stage is as follows:
when the tunnel is subjected to waterproof construction, the tunnel clearance is measured and checked, and the underexcavated sections are processed to meet the requirement of the clearance; and simultaneously, removing exposed hard objects such as the anchor rod head, the reinforcing steel bar head and the like, and leveling by using mortar to ensure that the primary support flatness of the tunnel is less than +/-50 mm. Leveling the uneven part of the supporting surface by adopting mortar, wherein the impervious grade of the lining waterproof concrete is not lower than P8; the drainage blind pipe drainage holes are located at the same height, and the distance between the drainage blind pipe drainage holes is not less than 30 cm. And a phi 50mm annular blind pipe is arranged between the primary support and the secondary lining, the distance between the annular blind pipes is arranged according to 6-12 m, and when the water seepage is found to be large, the annular blind pipes are dynamically added. An EVA waterproof board (the thickness is not less than 1.5mm) is laid between the primary support and the secondary lining of the tunnel arch wall, the waterproof board and geotextile (the density is more than 350g/m2) are used in a combined mode, and a nail-free hole laying process is adopted for construction.
As shown in fig. 2, it was found during the construction process that even if the construction is strictly performed by the above method, the water seepage phenomenon occurs in a few two-lining joints after the construction is completed, and according to the statistics of data, the water seepage occurs between the two-lining joints by more than 15%.
Researches show that the serious secondary lining water seepage mainly includes the existence of a secondary lining pouring vault cavity 6 (which cannot be avoided during secondary lining concrete construction) and a waterproof board puncture point 7 (a first mold secondary lining waterproof board and a second mold secondary lining waterproof board are punctured by concave-convex parts on the surface of a primary support, and the water seeps into a tearing position to the vicinity of a connecting seam). Through blocking that the third layer hoop waterproof board barb form of repair welding buries the concrete, infiltration water can't pierce through the barb form waterproof board of burying in the concrete, more can't pass to the buried waterstop in, infiltration water arranges to the side ditch along near drainage blind pipe, finally assembles to tunnel central drainage ditch and discharges in the tunnel.
In the subsequent construction process, by combining the serious situation of water seepage at the position of the on-site second-lining connecting seam, the method of the water seepage prevention construction method for the second-lining connecting seam in the tunnel in embodiment 1 of the invention is adopted, the lap joint position of the first-mould second-lining waterproof board and the second-mould second-lining waterproof board is used for performing repair welding on a third-layer annular waterproof board in an annular manner, the free end of the third-layer annular waterproof board is turned over according to the specific situation of the connecting seam, and the turned-over third-layer free-end waterproof board is in a shape of a barb; when the connecting joint is a construction joint, the folded waterproof plate is arranged on the outer side of the longitudinal steel bar, and the length of the folded waterproof plate entering the secondary lining concrete is more than or equal to 100 mm; when the connecting joint is a deformation joint, because the longitudinal steel bars are not connected, when the waterproof board is bent, the bending length is lengthened, the length of the waterproof board which is not folded and enters the second liner concrete is larger than or equal to 200mm, the length of the waterproof board which is folded and enters the second liner concrete is larger than or equal to 150mm, the water seepage phenomenon at the connecting joint position is obviously reduced, as shown in figure 3, the water seepage situation is reduced to below 3% from the original 15%, the effect is obvious, and the construction method is simple.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable to various fields of endeavor for which the invention may be embodied with additional modifications as would be readily apparent to those skilled in the art, and the invention is therefore not limited to the details given herein and to the embodiments shown and described without departing from the generic concept as defined by the claims and their equivalents.
Claims (6)
1. A water seepage prevention construction method for a connecting joint of two linings in a tunnel is characterized by comprising the following steps:
step one, annularly laying a first mould second lining waterproof board at the position of an end template on the primary support surface, and reserving the lap joint length of the first mould second lining waterproof board and the second mould second lining waterproof board during laying, wherein the lap joint length is more than or equal to 100 mm;
step two, performing repair welding of the annular waterproof plate at the lap joint position of the first mold second-lining waterproof plate and the second mold second-lining waterproof plate, wherein the repair welding requirements are as follows:
1) welding a third layer of annular waterproof plate at the lap joint position of the first mold second lining waterproof plate and the second mold second lining waterproof plate;
2) the longitudinal section of the third circumferential waterproof plate subjected to repair welding is in a shape like a Chinese character '7', and the length of the third circumferential waterproof plate subjected to repair welding is larger than the overlapping length of the first mold second lining waterproof plate and the second mold second lining waterproof plate;
3) the third layer of annular waterproof board is divided into a fixed welding end and a free end, the fixed welding end is welded and fixed at the lap joint position of the first mould second lining waterproof board and the second mould second lining waterproof board through a hot melting creeping welding machine, the longitudinal section of the fixed welding end is a 'one' part in a '7' shape, and the length of the fixed welding end is more than or equal to 100 mm;
4) the free end of the third layer of annular waterproof board is turned over towards the radial direction of the tunnel, the turned free end is perpendicular to the fixed welding end, the longitudinal section of the free end is I part in the shape of 7, and the length of the free end is more than or equal to 150 mm;
step three, turning over the free end of the third layer of annular waterproof board, wherein the turned over free end is in a shape of a barb; when the connecting joint is a construction joint, the free end of the turned third layer of annular waterproof board is positioned outside the longitudinal steel bar, and the length of the turned third layer of annular waterproof board entering the second lining concrete is more than or equal to 100 mm; when the connecting joint is a deformation joint, because the connecting joint is not connected with the longitudinal steel bars, when the free end of the third layer of annular waterproof plate is turned over, the length of the second layer of annular waterproof plate which is not turned over and enters the second layer of annular waterproof plate is larger than or equal to 100mm, and the length of the second layer of annular waterproof plate which is turned over and enters the second layer of annular waterproof plate is larger than or equal to 150 mm.
2. The method for constructing a tunnel inner two-lining joint seam in a seepage-proofing manner according to claim 1, wherein in the first step, after the primary support is finished and the secondary lining concrete is poured, the surface of the primary support is leveled, and after geotextile is hung, the first mould two-lining waterproof board is laid.
3. The water seepage prevention construction method for the two-lining connecting seam in the tunnel according to claim 1 or 2, wherein in the second step, the welding of the overlapping part of the first mould two-lining waterproof board and the second mould two-lining waterproof board is completed through a hot melting climbing welding machine, and meanwhile, the air tightness of the welding position is checked.
4. A water seepage prevention construction method for a two-lining connecting joint in a tunnel according to claim 3, wherein the air tightness inspection adopts an air pressure detection method to detect the tightness of the lap joint part.
5. A water seepage prevention construction method for a two-lining connecting joint in a tunnel according to claim 1 or 2, characterized in that a circumferential drainage blind pipe is pre-buried between the two-lining concrete and the primary support concrete of the tunnel.
6. The method for seepage-proofing construction of the two-lining connecting joint in the tunnel according to claim 5, wherein a buried water stop is arranged between the construction joint/deformation joint between the two linings of the two-mould tunnel.
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| CN202010238484.9A CN111396099B (en) | 2020-03-30 | 2020-03-30 | Water seepage prevention construction method for two-lining connecting joint in tunnel |
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| CN202010238484.9A CN111396099B (en) | 2020-03-30 | 2020-03-30 | Water seepage prevention construction method for two-lining connecting joint in tunnel |
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| CN114033442A (en) * | 2021-11-05 | 2022-02-11 | 中铁西南科学研究院有限公司 | Testing device and method for simulating improvement of water prevention and drainage performance of annular construction joint of tunnel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203362182U (en) * | 2013-07-23 | 2013-12-25 | 山东科技大学 | Tunnel waterproof board fixing and lap-jointing structure |
| CN104476765A (en) * | 2014-10-22 | 2015-04-01 | 邓卫东 | A tunnel waterproof board, a waterproof board welding method and a hot-melt welding machine |
| CN108194136A (en) * | 2017-12-31 | 2018-06-22 | 中铁十九局集团第二工程有限公司 | Lining construction method |
| CN109667606A (en) * | 2018-12-24 | 2019-04-23 | 中铁十八局集团有限公司 | A kind of tunnel multiple waterproof construction method |
| CN110629800A (en) * | 2019-09-26 | 2019-12-31 | 北京市地铁运营有限公司地铁运营技术研发中心 | Deformation joint treatment method and deformation joint waterproof structure |
-
2020
- 2020-03-30 CN CN202010238484.9A patent/CN111396099B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203362182U (en) * | 2013-07-23 | 2013-12-25 | 山东科技大学 | Tunnel waterproof board fixing and lap-jointing structure |
| CN104476765A (en) * | 2014-10-22 | 2015-04-01 | 邓卫东 | A tunnel waterproof board, a waterproof board welding method and a hot-melt welding machine |
| CN108194136A (en) * | 2017-12-31 | 2018-06-22 | 中铁十九局集团第二工程有限公司 | Lining construction method |
| CN109667606A (en) * | 2018-12-24 | 2019-04-23 | 中铁十八局集团有限公司 | A kind of tunnel multiple waterproof construction method |
| CN110629800A (en) * | 2019-09-26 | 2019-12-31 | 北京市地铁运营有限公司地铁运营技术研发中心 | Deformation joint treatment method and deformation joint waterproof structure |
Non-Patent Citations (1)
| Title |
|---|
| 公路隧道防水层(土工布+防水板)施工技术;刘超等;《安徽建筑》;20160620(第03期);全文 * |
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