CN113266391B - Wall rear buffer air bag device for preventing pipe piece from floating upwards and construction method thereof - Google Patents
Wall rear buffer air bag device for preventing pipe piece from floating upwards and construction method thereof Download PDFInfo
- Publication number
- CN113266391B CN113266391B CN202110755608.5A CN202110755608A CN113266391B CN 113266391 B CN113266391 B CN 113266391B CN 202110755608 A CN202110755608 A CN 202110755608A CN 113266391 B CN113266391 B CN 113266391B
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- air bag
- bag body
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- slurry
- preventing
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- 238000007667 floating Methods 0.000 title claims abstract description 49
- 238000010276 construction Methods 0.000 title claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 37
- 238000007599 discharging Methods 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 15
- 230000000903 blocking effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000011435 rock Substances 0.000 abstract description 5
- 238000007711 solidification Methods 0.000 abstract description 5
- 230000008023 solidification Effects 0.000 abstract description 5
- 210000004712 air sac Anatomy 0.000 abstract 1
- 239000011440 grout Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- E21D11/08—Lining with building materials with preformed concrete slabs
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a wall rear buffer airbag device for preventing pipe pieces from floating upwards and a construction method thereof, and belongs to the technical field of tunnel construction. A wall rear cushion airbag apparatus for preventing floating of a segment, comprising: a tube sheet and air sac assembly; the duct piece is provided with a hole, and the air bag component comprises an air bag body, a feeding pipeline and a discharging pipeline, wherein the feeding pipeline and the discharging pipeline respectively penetrate through the hole. According to the invention, high-pressure gas is input into the air bag body at the outer side of the pipe piece through the feeding pipeline, so that the air bag body is expanded under the action of air pressure, and the corresponding counter force is given to the pipe piece after the air bag body contacts with the surrounding rock at the outer side, so that the upward buoyancy generated by underground water and slurry is counteracted, and the pipe piece is prevented from floating upward in the non-solidification process of the slurry; after the pipe piece floating is effectively controlled, high-pressure slurry is injected into the air bag body, the air bag is filled, and after the slurry is solidified, the effective control of the pipe piece floating is finally realized, so that the tunnel construction quality and the later-stage safety are ensured.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to a back wall buffer airbag device for preventing pipe pieces from floating upwards and a construction method thereof.
Background
At present, the shield method is widely applied to urban subway tunnel engineering construction in China. In the construction process of the shield method, one of the focuses of the construction party and the supervision party is the quality of the formed tunnel, the subsequent use and personnel safety of the tunnel structure are directly related, but due to the fact that partial overexcavation phenomenon exists in the shield tunnel during excavation, surrounding strata are not restrained immediately, and an upward floating space is provided for the structure. Because the time required for initial setting of the filled grout behind the pipe piece wall is longer, and the pipe piece is assembled and the forward pushing speed is higher, a section of pipe piece can be always in the unset grout, the unset grout combines with the original hydrostatic pressure of the stratum to apply upward buoyancy to the pipe piece, the pipe piece can float upwards when the buoyancy is greater than the gravity of the pipe piece ring, and the floating phenomenon of the pipe piece is quite common in the shield construction process.
In the shield construction of strong weathering, wind-induced rock formation and soft soil stratum, the floating phenomenon of the segment often causes very serious potential safety hazard. Firstly, a vertical bolt is directly subjected to shearing force due to the staggered platform of an upper floating pipe sheet, so that a pipe sheet crack or a cut-off result between bolts is easy to occur, and in addition, a waterproof layer is broken, so that serious piping or sand boil and other problems occur in a water-rich stratum, and the structural safety is influenced; secondly, in the synchronous grouting construction process, the pipe piece floats upwards to open a crack of the upper earth covering part, so that grouting slurry flows outwards, the grouting amount is increased, the slurry is directly diluted by water in the crack to prolong the solidification time, and the floating phenomenon is further increased; the floating segment eventually causes an axial deviation beyond the building limits of the tunnel.
At present, the problem of floating up urban tunnel segments in China is attracting more attention, and basic reference measures for floating up control of segments include improving the proportion of slurry to shorten the initial setting time and increase the consistency of the slurry, or increasing the grouting pressure or grouting amount during grouting and grouting uniformity, so that the speed of grouting people is ensured to be matched with the tunneling speed, and the time for filling the gaps of buildings with the slurry at the upper part is shortened; and performing supplementary grouting on the pipe sheet wall by using double-liquid grouting, so as to reduce the floating probability of the pipe sheet; other measures include methods of adjusting the working posture of the shield, bolt tightening and the like. However, in view of the special variability of the stratum caused by the floating of the pipe piece, the grouting proportion and the mechanism adjustment cannot be completely adapted to the temporary variable post-wall environment in advance, and the current two pipe piece floating factors of the hydrostatic pressure and the grouting pressure have no solution with strong adaptability. Therefore, the problem that the floating of the segment structure in the grouting process is difficult to prevent exists in the prior art.
Disclosure of Invention
The invention aims to provide a wall rear buffer air bag device for preventing a duct piece from floating upwards and a construction method thereof, so as to solve the problem that the duct piece structure is difficult to prevent from floating upwards in the grouting process.
The technical scheme for solving the technical problems is as follows:
a wall rear cushion airbag apparatus for preventing floating of a segment, comprising: an air bag component arranged on the duct piece;
the duct piece is provided with a hole, and the air bag component comprises an air bag body arranged on the outer side of the duct piece, and a feeding pipeline and a discharging pipeline which are respectively communicated with the air bag body, wherein the feeding pipeline and the discharging pipeline respectively penetrate through the hole.
According to the invention, high-pressure gas is input into the air bag body at the outer side of the pipe piece through the feeding pipeline, so that the air bag body is expanded under the action of air pressure, and the corresponding counter force is given to the pipe piece after the air bag body contacts with the surrounding rock at the outer side, so that the upward buoyancy generated by underground water and slurry is counteracted, and the pipe piece is prevented from floating upward in the non-solidification process of the slurry; after the pipe piece floating is effectively controlled, high-pressure slurry is injected into the air bag body, the air bag is filled, and after the slurry is solidified, the effective control of the pipe piece floating is finally realized, so that the tunnel construction quality and the later-stage safety are ensured.
Further, a flow guide partition plate is arranged in the air bag body, separates the feeding pipeline from the discharging pipeline, and divides the air bag body into a feeding area, a flowing area and a discharging area.
The flow guide partition plate isolates the feeding pipeline from the discharging pipeline, guides the air flow and the liquid flow in the air bag body, and avoids the influence of the accumulation of the air flow or the liquid flow at the end part of the feeding pipeline on the expansion speed of the air bag body.
Further, a one-way valve is connected to the feeding pipe.
The invention can ensure the constant air pressure in the air bag body through the one-way valve, thereby providing stable pressure for the duct piece.
Further, the feeding pipeline and the discharging pipeline are respectively detachably connected with a sealing cover.
The sealing cover is used for sealing the feeding pipeline and the discharging pipeline.
Further, the duct piece includes: the standard block, the adjacent block and the capping block are respectively provided with holes, and the standard block, the adjacent block and the capping block are detachably connected.
The duct piece is formed by splicing the standard block, the adjacent block and the capping block, so that the duct piece is convenient to install.
Further, one end of the hole far away from the air bag body is detachably connected with a spiral cover, the spiral cover comprises a screw rod connected with the hole and a blocking cover arranged at the end part of the screw rod, and the blocking cover is in sealing fit with the hole.
The spiral cover is used for sealing the holes, and prevents other impurities from being mixed into the holes to cause blockage.
Further, a fork-shaped groove is formed in one surface of the plug cover, which is far away from the screw rod.
The spiral cover is conveniently and spirally taken out through the fork-shaped groove.
The construction method of the wall back buffer air bag device for preventing the pipe piece from floating comprises the following steps of:
S1: prefabricating holes in the pipe piece;
s2: installing an air bag assembly on each segment;
s3: filling high-pressure gas into the air bag body through a feeding pipeline;
S4: the air bag body expands to prevent the duct piece from floating upwards;
s5: disassembling the one-way valve, filling slurry into the air bag body and extruding gas;
s6: stopping grouting when the discharging pipeline uniformly discharges the slurry;
s7: and the feeding pipeline and the discharging pipeline are respectively sealed by a sealing cover, and the holes are sealed by a spiral cover.
The invention has the following beneficial effects:
According to the invention, high-pressure gas is input into the air bag body at the outer side of the pipe piece through the feeding pipeline, so that the air bag body is expanded under the action of air pressure, and the corresponding counter force is given to the pipe piece after the air bag body contacts with the surrounding rock at the outer side, so that the upward buoyancy generated by underground water and slurry is counteracted, and the pipe piece is prevented from floating upward in the non-solidification process of the slurry; after the pipe piece floating is effectively controlled, high-pressure slurry is injected into the air bag body, the air bag is filled, and after the slurry is solidified, the effective control of the pipe piece floating is finally realized, so that the tunnel construction quality and the later-stage safety are ensured.
Drawings
FIG. 1 is a schematic view of a rear wall cushion airbag device for preventing floating of duct pieces according to the present invention;
FIG. 2 is a schematic illustration of the location of the air bag module and aperture of the present invention;
FIG. 3 is a schematic view of the structure of the screw cap of the present invention;
FIG. 4 is a schematic diagram showing the operation of the air bag body filled with high-pressure air according to the present invention;
FIG. 5 is a schematic illustration of the operation of the balloon body of the present invention with grout injected;
FIG. 6 is a schematic diagram of the operation of the present invention with the bladder slurry filled.
In the figure: 10-segment; 11-holes; 12-standard blocks; 13-an adjacent block; 14-a top sealing block; 15-screw cap; 16-a fork-shaped groove; 17-screw; 18-plugging a cover; a 20-airbag module; 21-an air bag body; 22-a feed line; 23-a discharge pipeline; 24-a flow guide baffle; 25-a one-way valve; 26-capping; 27-a feed zone; 28-flow zone; 29-take-off zone.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Examples
Referring to fig. 1, a rear wall buffer air bag device for preventing a tube sheet from floating up, comprising: a tube sheet 10 and an air bag assembly 20.
Referring to fig. 1 and 3, the segment 10 includes: the standard blocks 12, the adjacent blocks 13 and the capping blocks 14, the number of the standard blocks 12 is three, the number of the adjacent blocks 13 is two, and the number of the capping blocks 14 is one. Holes 11 are respectively formed in the standard block 12 and the abutting block 13, and medium can be filled into the air bag assembly 20 through the holes 11. The screw cap 15 is detachably connected to one end of the inner side of the duct piece 10, the screw cap 15 comprises a screw rod 17 in threaded connection with the inner wall of the hole 11 and a blocking cap 18 arranged at the end part of the screw rod 17, the blocking cap 18 is used for sealing the hole 11, and a fork-shaped groove 16 is formed in the head of the blocking cap 18 to facilitate taking and discharging, so that blocking caused by mixing of other impurities into the hole 11 is avoided.
Referring to fig. 1 and 2, the air bag module 20 includes an air bag body 21 disposed outside the standard block 12, the adjacent block 13 and the capping block 14, and a feed pipe 22 and a discharge pipe 23 communicated with the air bag body 21, wherein the feed pipe 22 and the discharge pipe 23 respectively penetrate through the hole 11, and can be connected with external equipment to facilitate filling of high-pressure air or slurry into the air bag body 21. The feeding pipeline 22 is also connected with a one-way valve 25 which can ensure the constant air pressure in the air bag body 21 so as to provide stable pressure for the duct piece 10. The inside of the air bag body 21 is provided with a flow guide baffle 24, the flow guide baffle 24 is of a T shape, the bottom of the flow guide baffle 24 is used for separating a feeding pipeline 22 and a discharging pipeline 23, the top and the bottom of the flow guide baffle are matched to guide a medium in the air bag body 21, and the inside of the air bag body 21 is sequentially divided into: the feed zone 27, the flow zone 28 and the discharge zone 29 prevent the gas or liquid flow from collecting at the end of the feed line 22, thereby affecting the rate of expansion of the balloon body 21. The feeding pipeline 22 and the discharging pipeline 23 are respectively detachably connected with a sealing cover 26, and can respectively seal the feeding pipeline 22 and the discharging pipeline 23.
Referring to fig. 4, 5 and 6, in the construction process of the geological section where the floating of the segment 10 easily occurs, after the shield equipment completes the assembly and synchronous grouting of the segment 10, a fork screwdriver is adopted to detach the screw cap 15 from the hole 11, the feeding pipeline 22 and the discharging pipeline 23 are taken out, the sealing cap 26 of the feeding pipeline 22 is opened and connected with the air pump, and the sealing cap 26 of the discharging pipeline 23 is kept closed. The air pump is used for filling air into the air bag body 21 through the feeding pipeline 22, the air pressure is gradually increased due to the fact that the air pump is used for pumping the air into the air bag body 21, the air bag body 21 is pressed and expanded to contact with the surrounding rock on the outer side, equal-large reverse reaction force is applied to the outer wall of the pipe piece 10 from all directions, accordingly, buoyancy generated by underground water and slurry is counteracted, and the floating phenomenon of the pipe piece 10 in the non-solidification process of the slurry is restrained.
After the floating phenomenon of the crossing stratum is completely controlled, high-pressure slurry is injected into the air bag body 21 to fill the internal space, and the balancing action of the air bag body 21 is completed after the slurry is solidified: the check valve 25 on the feeding pipeline 22 is manually detached to ensure that the slurry is smoothly injected into the air bag body 21, so that the check valve 25 is prevented from being blocked by particles in the slurry. And opening the sealing cover 26 of the discharging pipeline 23, connecting the feeding pipeline 22 with grouting equipment, extruding residual gas in the air bag body 21 through slurry injected into the air bag body 21, and sealing the sealing cover 26 on the feeding pipeline 22 and the discharging pipeline 23 when the discharging pipeline 23 uniformly and continuously discharges the slurry, so that the grouting process is finished. The feeding pipeline 22 and the discharging pipeline 23 are returned to the original positions, the screw cover 15 is screwed into the hole 11 again, after the slurry in the air bag body 21 is completely solidified, the air bag body 21 resists the complete construction process of floating on the pipe sheet 10 to finish, the effective solution and control of the floating phenomenon of the pipe sheet 10 are finally realized, the integral construction quality and the later-stage safety of the pipe sheet 10 in the process are ensured,
The operation process of the invention comprises the following steps: (1) Assembling the standard block 12, the adjacent block 13 and the capping block 14 to form the duct piece 10; (2) Unscrewing the screw cap 15, taking out the feed line 22 and charging high pressure gas; (3) The air bag body 21 is inflated and in pressure contact with the outer side, and applies a force against floating to the segment 10; (4) After the pipe piece 10 is stable, the one-way valve 25 is disassembled, and the feeding pipeline 22 is filled with slurry; (5) When the discharging pipeline 23 uniformly and continuously discharges the slurry, the slurry in the front air bag body 21 has completely extruded the air flow; (6) The feed line 22 and the discharge line 23 are respectively closed by a cover 26; (7) screwing the screw cap 15 again to close the hole 11; (8) The slurry in the balloon body 21 is solidified and the construction process of resisting the buoyancy on the segment 10 is finished.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (7)
1. A rear wall cushion airbag device for preventing floating of a segment, comprising: an air bag component (20) arranged on the duct piece (10);
The duct piece (10) is provided with a hole (11), the air bag assembly (20) comprises an air bag body (21) arranged on the outer side of the duct piece (10), and a feeding pipeline (22) and a discharging pipeline (23) which are respectively communicated with the air bag body (21), wherein the feeding pipeline (22) and the discharging pipeline (23) respectively penetrate through the hole (11);
The inside of the air bag body (21) is provided with a flow guide clapboard (24), the flow guide clapboard (24) is in a T shape, the flow guide clapboard (24) separates the feeding pipeline (22) from the discharging pipeline (23), and the flow guide clapboard (24) divides the inside of the air bag body (21) into a feeding area (27), a flowing area (28) and a discharging area (29);
the air bag body (21) is filled with high-pressure gas through the feeding pipeline (22) and is used for preventing the duct piece (10) from floating upwards; after the floating phenomenon of the duct piece (10) is completely controlled, the air bag body (21) is introduced into the slurry through the feeding pipeline (22).
2. The wall-behind cushion airbag device for preventing tube sheet floating according to claim 1, wherein the feed pipeline (22) is connected with a one-way valve (25).
3. The wall-behind cushion airbag device for preventing tube sheet floating according to claim 2, wherein the feed pipe (22) and the discharge pipe (23) are detachably connected with a cover (26), respectively.
4. A post-wall cushion airbag device for preventing tube sheet floating according to any one of claims 1 to 3, wherein the tube sheet (10) comprises: the standard block (12), the adjacent block (13) and the capping block (14) of the hole (11) are respectively arranged, and the standard block (12), the adjacent block (13) and the capping block (14) are detachably connected.
5. The wall rear buffer airbag device for preventing pipe piece floating according to claim 4, wherein one end of the hole (11) far away from the airbag body (21) is detachably connected with a spiral cover (15), the spiral cover (15) comprises a screw (17) connected with the hole (11) and a blocking cover (18) arranged at the end part of the screw (17), and the blocking cover (18) is in sealing fit with the hole (11).
6. The wall rear cushion airbag device for preventing floating of duct pieces according to claim 5, wherein a fork-shaped groove (16) is formed on one surface of the blocking cover (18) away from the screw (17).
7. A construction method of a wall-behind cushion airbag device for preventing a tube sheet from floating up, comprising the steps of:
S1: prefabricating the holes (11) on the duct piece (10);
s2: installing the airbag module (20) on each segment (10);
S3: filling the air bag body (21) with high-pressure gas through the feeding pipeline (22);
s4: the air bag body (21) expands to prevent the duct piece (10) from floating upwards;
s5: detaching a one-way valve (25), filling slurry into the air bag body (21) and extruding gas;
s6: stopping grouting when the discharging pipeline (23) uniformly discharges the slurry;
S7: the feed line (22) and the discharge line (23) are each closed by a cover (26), and the holes (11) are closed by screw caps (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110755608.5A CN113266391B (en) | 2021-07-05 | 2021-07-05 | Wall rear buffer air bag device for preventing pipe piece from floating upwards and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110755608.5A CN113266391B (en) | 2021-07-05 | 2021-07-05 | Wall rear buffer air bag device for preventing pipe piece from floating upwards and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113266391A CN113266391A (en) | 2021-08-17 |
| CN113266391B true CN113266391B (en) | 2024-05-24 |
Family
ID=77236431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110755608.5A Active CN113266391B (en) | 2021-07-05 | 2021-07-05 | Wall rear buffer air bag device for preventing pipe piece from floating upwards and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113266391B (en) |
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|---|---|---|---|---|
| JPH0726895A (en) * | 1993-07-12 | 1995-01-27 | Nippon Shield Eng Kk | Segment |
| KR20080083246A (en) * | 2008-08-04 | 2008-09-17 | 강릉건설 주식회사 | Leakage prevention method for tunnel using multiple cushion rings |
| KR101587761B1 (en) * | 2015-05-18 | 2016-02-03 | 주식회사 삼천리이엔지 | Airbag apparatus for conduit |
| CN110242331A (en) * | 2019-07-29 | 2019-09-17 | 西南交通大学 | A method of pipe-plate lining ring anti-floating is assisted for the anti-floating system in shield tunnel and using it |
| CN111236971A (en) * | 2020-01-19 | 2020-06-05 | 天津大学 | Air bag type duct piece for urban shield tunnel and operation method thereof |
| CN111963201A (en) * | 2020-08-27 | 2020-11-20 | 中铁二十局集团有限公司 | Tunnel segment structure and construction method |
| CN112855186A (en) * | 2021-04-07 | 2021-05-28 | 中铁四局集团有限公司 | Shield station-crossing segment protection airbag construction method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104696664B (en) * | 2015-02-09 | 2017-04-19 | 郑州安源工程技术有限公司 | High-polymer composite grouting method for leakage and sand inrush blocking of underground pipeline |
-
2021
- 2021-07-05 CN CN202110755608.5A patent/CN113266391B/en active Active
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|---|---|---|---|---|
| JPH0726895A (en) * | 1993-07-12 | 1995-01-27 | Nippon Shield Eng Kk | Segment |
| KR20080083246A (en) * | 2008-08-04 | 2008-09-17 | 강릉건설 주식회사 | Leakage prevention method for tunnel using multiple cushion rings |
| KR101587761B1 (en) * | 2015-05-18 | 2016-02-03 | 주식회사 삼천리이엔지 | Airbag apparatus for conduit |
| CN110242331A (en) * | 2019-07-29 | 2019-09-17 | 西南交通大学 | A method of pipe-plate lining ring anti-floating is assisted for the anti-floating system in shield tunnel and using it |
| CN111236971A (en) * | 2020-01-19 | 2020-06-05 | 天津大学 | Air bag type duct piece for urban shield tunnel and operation method thereof |
| CN111963201A (en) * | 2020-08-27 | 2020-11-20 | 中铁二十局集团有限公司 | Tunnel segment structure and construction method |
| CN112855186A (en) * | 2021-04-07 | 2021-05-28 | 中铁四局集团有限公司 | Shield station-crossing segment protection airbag construction method |
Non-Patent Citations (1)
| Title |
|---|
| 盾构隧道管片上浮的机制研究;张君;赵林;周佳媚;刘欢;张迁;;铁道标准设计(第10期);第88-93页 * |
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| Publication number | Publication date |
|---|---|
| CN113266391A (en) | 2021-08-17 |
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