CN111911193B - Underwater target spot plugging railway tunnel deep vertical shaft water inrush structure and construction method - Google Patents
Underwater target spot plugging railway tunnel deep vertical shaft water inrush structure and construction method Download PDFInfo
- Publication number
- CN111911193B CN111911193B CN202010726947.6A CN202010726947A CN111911193B CN 111911193 B CN111911193 B CN 111911193B CN 202010726947 A CN202010726947 A CN 202010726947A CN 111911193 B CN111911193 B CN 111911193B
- Authority
- CN
- China
- Prior art keywords
- grouting
- water
- layer
- plugging
- cement slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 238000010276 construction Methods 0.000 title claims abstract description 30
- 239000002002 slurry Substances 0.000 claims abstract description 45
- 239000004568 cement Substances 0.000 claims abstract description 37
- 239000004575 stone Substances 0.000 claims abstract description 33
- 230000002787 reinforcement Effects 0.000 claims abstract description 28
- 230000008685 targeting Effects 0.000 claims abstract description 28
- 230000009172 bursting Effects 0.000 claims abstract description 25
- 239000002893 slag Substances 0.000 claims abstract description 20
- 239000011435 rock Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 239000011440 grout Substances 0.000 claims abstract description 9
- 230000000903 blocking effect Effects 0.000 claims description 30
- 238000005553 drilling Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 208000025865 Ulcer Diseases 0.000 abstract 1
- 231100000397 ulcer Toxicity 0.000 abstract 1
- 239000003673 groundwater Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (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 underwater target spot is used for plugging the construction and construction method of the railway tunnel deep shaft water inrush, so as to safely and rapidly treat the railway tunnel deep shaft water inrush disaster. Comprises an underground water plugging structure and a targeting grouting reinforcement structure; the underground water sealing structure comprises a broken stone grouting sealing layer, a cement slurry water-stopping layer and a flat-bottom concrete slurry-stopping pad which are sequentially arranged in an annular well wall lining from the slag body in the bottom well upwards, wherein the thickness of the broken stone grouting sealing layer is larger than the height of a burst water bursting mouth. The lower part of the flat-bottom concrete grout stopping pad breaks through the lining of the well wall and is embedded into the rock body. The target grouting reinforcement structure comprises target grouting holes and target grouting reinforcement bodies, wherein the target grouting holes are drilled by taking the top surface of a flat-bottom concrete grouting stop pad as a platform, obliquely downwards penetrate through a well wall lining and enter soft rock bodies around a gushing water ulcer opening, and the target grouting reinforcement bodies are reinforcement bodies formed by pressing cement slurry to the soft rock bodies through the target grouting holes and solidifying the cement slurry.
Description
Technical Field
The invention relates to a railway tunnel, in particular to a construction method for blocking water burst of a deep vertical shaft of the railway tunnel by an underwater target spot.
Background
In recent years, the railway tunnel engineering in China is vigorously developed, particularly, in western mountain areas, a large number of extra-long tunnels and a plurality of deep and large shafts are developed, and along with planning and construction of the Sichuan railway and other mountain area railways, the arrangement and construction of the Sichuan railway and other mountain area railways are controlled by the topography and the topography of the mountain area, and the extra-long tunnels assist tunnels to adopt more and more deep shafts.
For shaft engineering, the sudden flooding well is one of the greatest construction risks, and in the past shaft engineering, too, the sudden flooding well accident occurs, and the personnel safety and engineering are greatly lost. At present, the disaster treatment of vertical shaft water inrush is mainly divided into two major categories, namely 'forced drainage and drainage', and the other category is 'first blocking and then drainage', wherein 'forced drainage and drainage' is to configure water pumping and drainage equipment with the maximum water inflow amount larger than a water outlet point, and underground water in a shaft is pumped to a working surface through forced drainage and then subsequent water blocking operation is carried out; the treatment method mainly comprises the steps of sealing the bottom of underwater concrete, draining water, and sealing the bottom of underwater ballast, wherein the first step is to seal the water outlet point of underground water, and then pump-drain underground water in a well.
Aiming at a railway tunnel deep vertical shaft, due to high groundwater pressure and irregular development of rock mass cracks, the surge water disaster treatment is greatly different from that of a conventional vertical shaft. The treatment method of forced drainage is subject to uncontrollable investment of groundwater water inflow engineering, and the risk of directly carrying out water shutoff operation in a high-pressure water environment after pumping drainage is extremely high. The method for treating the water discharged after the bottom sealing of the underwater concrete cannot ensure the continuity of the construction of the water stopping material, and can lead to the formation of a construction joint which is in various directions and is not compact in cementing in the later stage of a water stopping layer, the effect of the water stopping layer is difficult to ensure, and non-negligible potential safety hazards are brought to the subsequent working face construction. The drainage treatment method after underwater slag throwing, grouting and back cover has higher requirements on slag materials, grain sizes and grading, and slurry is unevenly diffused in a slag pile under the action of high-pressure water, so that a grouting blind area is easy to form.
In summary, the conventional vertical shaft surge water disaster treatment technology has a plurality of defects for the railway tunnel deep vertical shaft, the high-pressure underground water blocking effect is difficult to guarantee, and the key of the surge breach blocking treatment is not covered, so the technology for treating the railway tunnel deep vertical shaft surge water is an urgent need for building the railway tunnel deep vertical shaft.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an underwater target spot plugging railway tunnel deep shaft water inrush structure so as to safely and rapidly treat railway tunnel deep shaft water inrush disasters.
The technical scheme adopted for solving the technical problems is as follows:
The invention discloses an underwater target spot plugging railway tunnel deep vertical shaft water inrush structure, which is characterized in that: comprises an underground water plugging structure and a targeting grouting reinforcement structure; the underground water sealing structure comprises a broken stone grouting sealing layer, a cement slurry water-stopping layer and a flat-bottom concrete slurry-stopping pad which are sequentially arranged in an annular well wall lining from the slag body in the bottom well upwards, wherein the thickness of the broken stone grouting sealing layer is larger than the height of a burst water burst opening; the lower part of the flat-bottom concrete grout stopping pad breaks through the lining of the well wall and is embedded into the rock body; the target grouting reinforcement structure comprises target grouting holes and target grouting reinforcement bodies, wherein the target grouting holes are drilled by taking the top surface of a flat-bottom concrete grouting stop pad as a platform, obliquely penetrate downwards through a well wall lining and enter a weak rock body around a gushing water bursting hole, the target grouting reinforcement bodies are reinforcement bodies formed by pressing cement slurry to the weak rock body through the target grouting holes, and the cement slurry is solidified;
the targeted grouting holes are radially arranged at intervals, drilled according to the outer ring holes and the inner ring Kong Fenbu, cement slurry is injected in sequence under pressure, and a targeted grouting water-resisting layer and a targeted grouting water-blocking layer are formed in the range of the targeted grouting reinforcement.
The invention provides a construction method for plugging a railway tunnel deep shaft gushing water structure by using the underwater target point, which comprises the following steps:
① Placing a grouting pipeline down to the position above the slag in the well, and throwing down crushed stone with a certain thickness to form a crushed stone cushion layer;
② Discharging water slurry conveying pipeline to the upper part of the broken stone cushion layer, and pouring cement slurry to form a cement slurry water-stopping layer;
③ After the curing of the cement slurry water-stop layer is completed, grouting a closed broken stone cushion layer by using a grouting pipeline to form a broken stone grouting blocking layer, wherein the thickness of the broken stone grouting blocking layer is larger than the height of a burst water bursting hole;
④ Draining water in the shaft to drain accumulated water in the lining of the well wall;
⑤ Chiseling the top surface of the cement paste water-stop layer to remove the applied well wall lining, pouring concrete and applying a flat-bottom concrete slurry-stop pad;
⑥ The top surface of the flat-bottom concrete grouting pad is provided with a targeting grouting hole for the gushing water bursting hole, and the gushing water bursting hole is subjected to targeting grouting treatment through the targeting grouting hole;
⑦ Drilling a plugging layer grouting hole on the top surface of the flat-bottom concrete grouting stop pad, and grouting and reinforcing the gravel grouting plugging layer and the slag in the well;
⑧ And after the water burst of the water burst bursting opening is completely blocked, recovering the normal construction of the vertical shaft.
The invention has the beneficial effects that the water blocking layer of cement slurry and the gravel grouting blocking layer are combined, and water blocking reinforcement measures are adopted, so that the underground water blocking effect is ensured, and the safety risk of water blocking construction is relatively low; the working platform formed by the cement slurry water-stopping layer, the broken stone grouting blocking layer and the flat-bottom type concrete slurry-stopping pad is utilized to perform targeted grouting to the water burst bursting mouth, so that high-pressure underground water at the water burst bursting mouth can be effectively blocked, weak rock mass at the bursting mouth is reinforced, secondary water burst is avoided, and the construction safety of later-stage shaft digging and laying is ensured; can safely and rapidly treat the sudden water disaster of the deep vertical shaft of the railway tunnel, and has remarkable social and economic benefits and application value.
Drawings
The specification includes the following six figures:
FIG. 1 is an elevation view of grouting and slurry conveying pipeline arrangement in a deep shaft gushing water structure of an underwater target plugging railway tunnel;
FIG. 2 is a cross-sectional view of a grouting and slurry conveying pipeline arrangement in a deep shaft gushing water structure of an underwater target plugging railway tunnel;
FIG. 3 is a schematic elevation view of targeted grouting at a water burst breach in a water burst construction of a deep shaft of a railway tunnel plugged by an underwater target;
FIG. 4 is a schematic plan view of targeted grouting at a water burst breach in a water burst construction of a deep vertical shaft of a railway tunnel plugged by an underwater target;
FIG. 5 is a schematic view of a grouting reinforcement elevation of a gravel blocking layer in a deep shaft gushing water structure of an underwater target blocking railway tunnel;
FIG. 6 is a schematic plan view of grouting reinforcement of a gravel blocking layer in a deep shaft gushing water structure of an underwater target blocking railway tunnel;
the figure shows the components, part names and corresponding labels: the well wall lining comprises a raw rock A, a well wall lining 10, a water burst bursting hole 11, a bottom well slag 13, a cement slurry water-stop layer 21, a broken stone grouting plugging layer 22, a flat bottom concrete grouting stop pad 23, a targeting grouting hole 24, a plugging layer grouting hole 25, a targeting grouting water-stop layer, a targeting grouting plugging layer 26, a cement slurry conveying pipeline 31 and a grouting pipeline 32.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The underwater target spot plugging railway tunnel deep shaft water inrush structure comprises a ground water plugging structure and a targeted grouting reinforcement structure. Referring to fig. 1 and 3, the underground water plugging structure comprises a gravel grouting plugging layer 22, a cement slurry water-stopping layer 21 and a flat-bottom concrete grouting cushion 23 which are sequentially arranged in the annular well wall lining 10 from the bottom well slag body 13 upwards, wherein the thickness of the gravel grouting plugging layer 22 is larger than the height of the burst water bursting mouth 11. The flat-bottom concrete grout stop pad 23 breaks through the well wall lining 10 and is embedded into the rock. The underground water sealing effect can be ensured by combining the cement slurry water-blocking layer 21 and the broken stone grouting sealing layer 22.
Referring to fig. 3 and 4, the targeting grouting reinforcement structure includes a targeting grouting hole 24 and a targeting grouting reinforcement body, the targeting grouting hole 24 is drilled by taking the top surface of a flat-bottom concrete grouting stop pad 23 as a platform, and obliquely passes through the well wall lining 10 downwards to enter the weak rock body around the gushing water bursting mouth 11, and the targeting grouting reinforcement body is a reinforcement body formed by pressing cement slurry to the weak rock body through each targeting grouting hole 24 and solidifying the cement slurry. The cement slurry water-stopping layer 21, the broken stone grouting plugging layer 22 and the working platform formed by the flat-bottom type concrete slurry-stopping pad 23 perform targeted grouting to the water burst bursting opening 11, can effectively plug high-pressure groundwater at the water burst bursting opening, strengthen weak rock mass at the bursting opening, avoid secondary water burst and ensure the construction safety of later-stage shaft digging and building.
Referring to fig. 3 and 4, the targeted grouting holes 24 are radially arranged at intervals, drilled according to the outer ring holes and the inner ring Kong Fenbu, and sequentially pressed with cement slurry, so as to form a targeted grouting water-resisting layer and a targeted grouting water-blocking layer within the scope of the targeted grouting reinforcement. The elevation of the targeted grouting holes 24 is flush with the bottom surface of the slag body 13 in the bottom well.
Referring to fig. 3, the flat-bottom concrete grout stop pad 23 is used for preventing grout from flowing upward and ensuring grouting pressure, and has a cross section preferably in the shape of a trapezoid, and the lower part of the flat-bottom concrete grout stop pad breaks through the wall lining 10 and is embedded in a rock body.
Referring to fig. 5 and 6, the top surface of the flat-bottom concrete grout stop pad 23 is circumferentially provided with grouting holes 25 of a plugging layer at intervals, each grouting hole 25 of the plugging layer vertically extends downwards to the bottom surface of the bottom well slag body 13, and grouting slurry is pressed into the bottom well slag body 13 and the crushed stone grouting plugging layer 22 through each grouting hole 25 of the plugging layer to integrate the two.
Referring to fig. 1 to 6, the construction method for plugging a railway tunnel deep shaft gushing water structure by using an underwater target spot comprises the following steps:
① Placing a grouting pipeline 32 to the position above the slag body 13 in the bottom well, and throwing down crushed stone with a certain thickness to form a crushed stone cushion layer;
② Discharging water slurry conveying pipeline 31 to the position above the broken stone cushion layer, and pouring cement slurry to form a cement slurry water-stopping layer 21;
③ After the curing of the cement slurry water-stop layer 21 is completed, grouting a closed broken stone cushion layer by using a grouting pipeline 32 to form a broken stone grouting blocking layer 22, wherein the thickness of the broken stone grouting blocking layer 22 is larger than the height of the burst water bursting mouth 11;
④ Performing shaft water pumping and draining to drain accumulated water in the well wall lining 10;
⑤ Chiseling the applied well wall lining 10 on the top surface of the cement slurry water-stop layer 21, pouring concrete and applying a flat-bottom concrete slurry-stop pad 23;
⑥ A targeting grouting hole 24 is formed on the top surface of the flat-bottom concrete grouting stop pad 23 towards the gushing water bursting mouth 11, and the gushing water bursting mouth 11 is subjected to targeting grouting treatment through the targeting grouting hole 24 to form a targeting grouting reinforcing body;
⑦ Drilling a plugging layer grouting hole 25 on the top surface of a flat-bottom concrete grouting stop pad 23 to a gravel grouting plugging layer 22, and grouting and reinforcing the gravel grouting plugging layer 22 and the bottom well slag 13;
⑧ And after the water burst of the water burst bursting port 11 is completely blocked, the normal construction of the vertical shaft is restored.
In the step ⑥, the outer ring of the targeted grouting holes 24 is firstly applied, the grouting slurry is pressed to form a targeted grouting water-resisting layer in the range of the targeted grouting reinforcement, and then the inner ring of the targeted grouting holes 24 is applied, and the grouting slurry is pressed to form a targeted grouting water-blocking layer.
In the step ⑥ and the step ⑦, the construction of the targeting grouting holes 24 and the plugging layer grouting holes 25 adopts a method of combining drilling and grouting, the whole section of the grouting machine adopts downward pressing type segmented grouting, if the water inflow amount in the holes is large in the drilling process, the drilling is stopped, grouting and sealing are performed firstly, then hole drilling and grouting are performed, and the grouting is performed until the final hole is reached.
The foregoing description is only intended to illustrate the principles of the construction and method of underwater target plugging railway tunnel deep shaft gushing water and is not intended to limit the invention to the specific structure and application scope shown and described, so that all possible modifications and equivalents thereof shall fall within the scope of the invention as claimed.
Claims (7)
1. The underwater target spot plugging railway tunnel deep vertical shaft gushing water structure is characterized in that: comprises an underground water plugging structure and a targeting grouting reinforcement structure; the underground water blocking structure comprises a broken stone grouting blocking layer (22), a cement slurry water blocking layer (21) and a flat-bottom concrete slurry blocking pad (23) which are sequentially arranged upwards by a slag body (13) in a bottom well in an annular well wall lining (10), wherein the thickness of the broken stone grouting blocking layer (22) is larger than the height of a burst water bursting mouth (11); the lower part of the flat-bottom concrete grout stopping pad (23) breaks through the well wall lining (10) and is embedded into the rock body; the targeting grouting reinforcement structure comprises targeting grouting holes (24) and a targeting grouting reinforcement body, wherein the targeting grouting holes (24) are drilled by taking the top surface of a flat-bottom concrete grouting stop pad (23) as a platform, obliquely downwards penetrate through a well wall lining (10) and enter a weak rock body around a gushing water bursting hole (11), and the targeting grouting reinforcement body is formed by pressing cement slurry to the weak rock body through each targeting grouting hole (24) and solidifying the cement slurry;
The targeted grouting holes (24) are radially arranged at intervals, are drilled according to the outer ring holes and the inner ring Kong Fenbu, are sequentially injected with cement slurry under pressure, and form a targeted grouting water-resisting layer and a targeted grouting water-blocking layer in the range of the targeted grouting reinforcement.
2. The underwater target plugging railway tunnel deep shaft gushing water construction of claim 1, wherein: the elevation of the targeting grouting hole (24) is flush with the bottom surface of the slag body (13) in the bottom well.
3. The underwater target plugging railway tunnel deep shaft gushing water construction of claim 1, wherein: the cross section of the flat-bottom type concrete grout stop pad (23) is trapezoid.
4. The underwater target plugging railway tunnel deep shaft gushing water construction of claim 1, wherein: the top surface of the flat-bottom concrete grouting stop pad (23) is provided with blocking layer grouting holes (25) at intervals in a circumferential direction, each blocking layer grouting hole (25) vertically and downwards extends to the bottom surface of the bottom well internal slag body (13), and the blocking layer grouting holes (25) are used for pressing cement slurry into the bottom well internal slag body (13) and the broken stone grouting blocking layer (22) to enable the two to be combined into a whole.
5. The construction method for plugging a railway tunnel deep shaft gushing water structure by using an underwater target point according to any one of claims 1 to 4, comprising the following steps:
① A grouting pipeline (32) is downwards placed above the slag body (13) in the bottom well, and crushed stone with a certain thickness is downwards thrown to form a crushed stone cushion layer;
② A cement slurry conveying pipeline (31) is arranged below the broken stone cushion layer, and cement slurry is poured into the broken stone cushion layer to form a cement slurry water-stop layer (21);
③ After the curing of the cement slurry water-stop layer (21) is completed, grouting a broken stone cushion layer by utilizing a grouting pipeline (32) to form a broken stone grouting blocking layer (22), wherein the thickness of the broken stone grouting blocking layer (22) is larger than the height of a burst water bursting hole (11);
④ Draining water in the shaft to drain accumulated water in the well wall lining (10);
⑤ Chiseling out the applied well wall lining (10) on the top surface of the cement slurry water-stop layer (21), pouring concrete and applying a flat-bottom concrete slurry-stop pad (23);
⑥ The top surface of the flat-bottom concrete grouting stop pad (23) faces to a gushing water bursting opening (11) Shi Zuoba to a grouting hole (24), and the gushing water bursting opening (11) is subjected to targeted grouting treatment through the targeted grouting hole (24) to form a targeted grouting reinforcement body;
⑦ Drilling a plugging layer grouting hole (25) on the top surface of a flat-bottom concrete grouting stop pad (23) to a broken stone grouting plugging layer (22), and grouting and reinforcing the broken stone grouting plugging layer (22) and a bottom well slag body (13);
⑧ And after the water burst of the water burst bursting opening (11) is completely blocked, the normal construction of the vertical shaft is restored.
6. The construction method for plugging the underwater target point of the railway tunnel deep shaft gushing water structure according to claim 5, which is characterized in that: in the step ⑥, the outer ring of the targeted grouting holes (24) are firstly applied, the pressure injection cement slurry forms a targeted grouting water-resisting layer in the range of the targeted grouting reinforcement, and then the inner ring of the targeted grouting holes (24) is applied and the pressure injection cement slurry forms a targeted grouting water-blocking layer.
7. The construction method for plugging the underwater target point of the railway tunnel deep shaft gushing water structure according to claim 5, which is characterized in that: in the step ⑥ and the step ⑦, the construction of the targeting grouting hole (24) and the plugging layer grouting hole (25) adopts a method of combining drilling and grouting, the whole section of height adopts downward pressing type segmented grouting, if the water inflow amount in the hole is large in the drilling process, the drilling is stopped, grouting and sealing are performed firstly, then the hole is drilled and grouting is performed, and the hole is drilled until the final hole is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010726947.6A CN111911193B (en) | 2020-07-26 | 2020-07-26 | Underwater target spot plugging railway tunnel deep vertical shaft water inrush structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010726947.6A CN111911193B (en) | 2020-07-26 | 2020-07-26 | Underwater target spot plugging railway tunnel deep vertical shaft water inrush structure and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111911193A CN111911193A (en) | 2020-11-10 |
| CN111911193B true CN111911193B (en) | 2024-08-27 |
Family
ID=73280799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010726947.6A Active CN111911193B (en) | 2020-07-26 | 2020-07-26 | Underwater target spot plugging railway tunnel deep vertical shaft water inrush structure and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111911193B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212837844U (en) * | 2020-07-26 | 2021-03-30 | 中铁二院工程集团有限责任公司 | Water inrush structure in deep shafts of railway tunnels blocked by underwater targets |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4011209B2 (en) * | 1998-10-12 | 2007-11-21 | 西松建設株式会社 | Construction method of shaft |
| CN202370524U (en) * | 2011-12-28 | 2012-08-08 | 陕西煤业化工建设（集团）有限公司 | Water control construction structure for working face of shaft body of air return vertical shaft |
| CN107191188B (en) * | 2017-07-25 | 2023-06-06 | 马钢(集团)控股有限公司 | Bedrock section bad aquifer positioning and targeting grouting vertical shaft wall structure, construction device and construction method |
| CN206957765U (en) * | 2017-07-31 | 2018-02-02 | 河北钢铁集团矿业有限公司 | Water outburst treatment structure is built in a kind of vertical shaft pick |
| CN108119143B (en) * | 2017-12-20 | 2019-11-15 | 湖南科技大学 | A joint grouting method of cement-sodium silicate double liquid and chemical grout double-circle curtain in shaft working face |
-
2020
- 2020-07-26 CN CN202010726947.6A patent/CN111911193B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212837844U (en) * | 2020-07-26 | 2021-03-30 | 中铁二院工程集团有限责任公司 | Water inrush structure in deep shafts of railway tunnels blocked by underwater targets |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111911193A (en) | 2020-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107387123B (en) | The construction method of pressure grouting leak stopping is carried out for shield duct piece piece leakage phenomenon | |
| CN110230309B (en) | Karst area bridge karst cave pile foundation construction method | |
| CN102797266B (en) | Well sealing waterproof construction method for dewatering well | |
| CN111734420B (en) | Water-rich stratum shield underwater receiving method provided with tunnel portal mortar retaining wall | |
| CN108999181A (en) | Molten, soil cave injecting treatment construction method and its application | |
| CN102108869B (en) | Grout stop pad construction method for kilometer vertical shaft grouting for water control | |
| CN112482415B (en) | Consolidation grouting method for underground cavern under high external water pressure and flowing water condition | |
| CN105464194B (en) | Less than the sewage network water-proof repairing construction method of level of ground water | |
| CN106381840A (en) | Leaking stoppage grouting method for cracks under high pressure flowing water state | |
| CN106894428A (en) | Multi-channel waterproof plugging method for dewatering well of thick and large raft foundation | |
| CN102839691B (en) | Quick sealing method and device for sandless cement pipe deep well dewatering wellhead | |
| CN111395263B (en) | Leakage treatment method for roller compacted concrete dam body | |
| CN107816117A (en) | A kind of large-scale pressure current box culvert is not cut off the water outer restorative procedure | |
| CN110344394A (en) | A kind of surrounding deep foundation pit shallow embedding structure base ruggedized construction and construction method | |
| CN114542116A (en) | Method for repairing service attitude of shield tunnel by bladder grouting | |
| CN202730786U (en) | Well-sealing waterproof construction structure of dewatering well | |
| CN101343988B (en) | Deep layer cement-soil mixing pile grouting water-blocking method for artesian area | |
| CN112012746A (en) | Construction method of railway tunnel deep and large vertical shaft under condition of thick-layer water-rich broken zone | |
| CN212837844U (en) | Water inrush structure in deep shafts of railway tunnels blocked by underwater targets | |
| CN104988981B (en) | A kind of well construction method of riding on present situation operation shield method drainage pipeline | |
| CN111911193B (en) | Underwater target spot plugging railway tunnel deep vertical shaft water inrush structure and construction method | |
| CN205954651U (en) | Concrete open caisson back cover structure | |
| CN215486069U (en) | Operation shield tunnel section of jurisdiction restoration structure after being punctured by external force | |
| CN113175350B (en) | A construction method for wastewater pumping station in water-rich sand layer | |
| CN105544547A (en) | Covering type soil filled and soft soil stratum segmented reinforcing device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |