CN109958461B - Coal mine fault water-penetration-preventing structure - Google Patents
Coal mine fault water-penetration-preventing structure Download PDFInfo
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- CN109958461B CN109958461B CN201910219556.2A CN201910219556A CN109958461B CN 109958461 B CN109958461 B CN 109958461B CN 201910219556 A CN201910219556 A CN 201910219556A CN 109958461 B CN109958461 B CN 109958461B
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- pipe
- coal mine
- steel pipe
- tensioning
- snap ring
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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
- E21D11/04—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
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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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
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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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/26—Shoes for connecting arch members to longitudinal struts
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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
Abstract
The invention discloses a coal mine fault waterproof and waterproof structure, wherein a plurality of radial tensioning main reinforcements which are radially arranged and tightly attached to a roadway wall are tensioned in the radial direction between a tensioning base assembly and a steel pipe arch column, each radial tensioning main reinforcement is provided with a branch steel bar which is vertically arranged with the radial tensioning main reinforcement, two ends of each branch steel bar extend into and are fixed in the roadway wall, and spraying anchoring solidification slurry is sprayed and arranged in the position areas where the radial tensioning main reinforcements and the branch steel bars are arranged on the roadway wall. The invention injects cement concrete into the steel tube arch column through the grouting port, thereby improving the strength of the steel tube arch column, the steel tube arch column is connected with the guide pipe through the fastening piece, the integrity of the waterproof structure is improved, and fine cement mortar is pressed into the guide pipe from the connecting pipe through an external cement pump truck, so that a part of the fine cement mortar is seeped out from the weeping hole, and the fault of the coal mine forms a sealing state.
Description
Technical Field
The invention relates to the technical field of coal mining, in particular to a coal mine fault water-proof and water-permeable structure.
Background
The fault is a structure which is displaced by a rock stratum or a rock mass, the structure forms are different, the size and the scale are slightly different, the integrity of the rock stratum is damaged due to the formation of the fault, if a water-rich layer is met, the fault is filled with water, and great difficulty and potential safety hazard are caused to the mining of a coal mine.
Before coal mining, rock strata must be explored to avoid faults as much as possible, but a part of faults cannot be avoided, and the faults must be reinforced and waterproof to prevent underground water from flowing into the faults to cause collapse of the faults. Accordingly, one skilled in the art provides a coal mine fault water-penetration-proof structure to solve the problems set forth in the background art.
Disclosure of Invention
The invention aims to provide a coal mine fault waterproof structure, which aims to solve the problem that a part of faults proposed in the background technology cannot be avoided, and must be reinforced and waterproof to prevent underground water from flowing into the faults to cause the faults to collapse.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a coal mine fault waterproof structure, includes steel pipe arched column, many radial taut main muscle, branch reinforcing bar, taut base subassembly, slip casting anchor pipe assembly and pumping pipe assembly, wherein, tunnel wall position department at coal mine fault position is fixed and is provided with two sets of mutual parallel arrangement's steel pipe arched column of hugging closely the tunnel wall, connect on the steel pipe arched column and be provided with many slip casting anchor pipe assemblies and many pumping pipe assemblies that stretch into the drilling on the tunnel wall, the equal detachable connection of outer tip of slip casting anchor pipe assembly and pumping pipe assembly is provided with pumping joint subassembly and slip casting joint subassembly, the inner of pumping pipe assembly stretches into the degree of depth and is greater than the inner of slip casting anchor pipe assembly stretches into the degree of depth, the center bottom of steel pipe arched column is provided with the taut base subassembly of fixing on the tunnel diapire, taut base subassembly with radial direction between the steel pipe arched column is taut many radial arrangement that are provided with the tunnel wall and is hugged closely The tunnel wall is provided with radial tensioning main reinforcements, each radial tensioning main reinforcement is provided with a branch reinforcing steel bar which is vertically arranged with the radial tensioning main reinforcement, two ends of each branch reinforcing steel bar extend into and are fixed in the tunnel wall, spraying anchoring solidification slurry is sprayed in the position area where the radial tensioning main reinforcement and the branch reinforcing steel bar are arranged on the tunnel wall, and the spraying anchoring solidification slurry is as thick as a steel pipe arch pillar which is far away from the tunnel wall.
As a still further scheme of the invention: the outer peripheral surfaces of the radial tensioning main reinforcements and the branch reinforcements are rough structures, edges and corners are arranged on the outer peripheral surfaces, and concrete grout is also injected into the steel pipe arch column.
As a still further scheme of the invention: taut base subassembly includes unable adjustment base, tight seat and tight circle of drawing, wherein, unable adjustment base fixes the bottom in tunnel, the bottom of tight seat of drawing is connected to be fixed unable adjustment base is last, the top of tight seat of drawing is connected to be installed the tight circle, each the bottom of radial taut main muscle is radial laying on the tight circle.
As a still further scheme of the invention: the multiple groups of coal mine fault waterproof and permeable structures are arranged at the positions of faults of the coal mine tunnel wall at equal intervals. And the anchoring solidification slurry is upwards sprayed to the top wall of the roadway.
As a still further scheme of the invention: slip casting anchor pipe subassembly and drinking-water pipe subassembly structure are the same, all include the pipe, wherein, the surface of steel pipe arch post evenly is provided with the fastener, and the front side of the lower extreme of steel pipe arch post is provided with the slip casting mouth, the inboard fixedly connected with pipe of the upper end of fastener, the front side of pipe is provided with the connecting pipe.
As a still further scheme of the invention: the catheter comprises a hollow steel pipe, an internal thread opening is formed in the inner side of the front surface of the hollow steel pipe, and liquid seepage holes are uniformly formed in the outer side of the hollow steel pipe.
As a still further scheme of the invention: the connecting pipe includes the joint pipe, the rear side of the surface of joint pipe is provided with outer hexagon nut, and the surface of the rear end of joint pipe is close to outer hexagon nut's rear side and opens and establish the external screw mouth.
As a still further scheme of the invention: the hollow steel pipe is fixedly connected with the external thread opening through the internal thread opening.
As a still further scheme of the invention: the fastener includes lower buckle, the top of buckle is provided with the buckle down, the equal run-through connection in both ends of buckle and last buckle has first bolt down, the top of going up the buckle is provided with the screw rod, the top fixedly connected with fixed snap ring of screw rod, the top of fixed snap ring is provided with movable snap ring, the one end of activity snap ring and fixed snap ring is run through and is provided with the second bolt, and the other end of activity snap ring and fixed snap ring runs through and is provided with the pivot, the pipe embedding is in the inboard of activity snap ring and fixed snap ring, the inboard of buckle and last buckle is under in the embedding of steel pipe vaulting pole.
As a still further scheme of the invention: the distance between two adjacent branch reinforcing steel bars is 20-60 cm.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a method for preventing water penetration, which comprises the steps of injecting cement concrete into a steel pipe arch column through a grouting port, thereby improving the strength of the steel pipe arch column, spraying anchoring solidification slurry on the wall of a box tunnel, spraying the thickness of the anchoring solidification slurry to the position of the steel pipe arch column far away from the tunnel wall to enable the steel pipe arch column to support a coal mine tunnel, well supporting the tunnel to prevent collapse of the tunnel and simultaneously preventing water penetration accidents from happening, connecting the steel pipe arch column and a guide pipe together through a fastening piece to improve the integrity of a water penetration preventing structure, pressing fine cement mortar into the guide pipe from a connecting pipe through an external cement pump truck, enabling a part of the fine cement mortar to seep out from a seepage hole and enter the coal mine fault to connect the coal mine fault together to form a sealing state, thereby effectively preventing underground water from flowing out from the fault and causing collapse of the coal mine, and enabling the other part of the fine cement mortar to be filled in the guide pipe, the intensity of pipe is improved to the security of fault has been improved, simultaneously, the pipe department of drinking-water pipe subassembly can suitably draw water to inside infiltration, prevents the emergence of the accident of permeating water.
Drawings
FIG. 1 is a schematic structural diagram of a coal mine fault water-penetration-preventing structure;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is a schematic structural diagram of a guide pipe in a coal mine fault water-penetration-preventing structure;
FIG. 4 is a schematic structural diagram of a connecting pipe in a coal mine fault water-penetration-proof structure;
FIG. 5 is an exploded view of a fastener in a coal mine fault water-tight structure;
fig. 6 is a schematic diagram of arrangement of a coal mine fault waterproof and waterproof structure on a tunnel wall.
Detailed Description
Referring to fig. 1 to 6, in an embodiment of the present invention, a coal mine fault waterproof and waterproof structure includes a steel pipe arch pillar 1, a plurality of radial tensioning main ribs 9, branch reinforcing bars 10, a tensioning base assembly, a grouting anchoring pipe assembly and a water pumping pipe assembly 6, wherein two groups of steel pipe arch pillars 1 arranged in parallel and tightly attached to a roadway wall 16 are fixedly disposed at a roadway wall position of a coal mine fault position, the steel pipe arch pillar 1 is connected with a plurality of grouting anchoring pipe assemblies and a plurality of water pumping pipe assemblies extending into a drill hole on the roadway wall 16, outer end portions of the grouting anchoring pipe assembly and the water pumping pipe assembly are detachably connected with a water pumping joint assembly and a grouting joint assembly 15, an inner end extending depth of the water pumping pipe assembly is greater than an inner end extending depth of the grouting anchoring pipe assembly, a tensioning base assembly fixed on a bottom wall of the roadway is disposed at a central bottom of the steel pipe arch pillar 1, the tensioning base assembly and the radial direction tensioning between the steel tube arch columns 1 are provided with a plurality of radial tensioning main reinforcements 9 which are radially arranged and tightly attached to the roadway wall, each radial tensioning main reinforcement 9 is provided with a branch reinforcement 10 which is vertically arranged with the radial tensioning main reinforcement, two ends of each branch reinforcement 10 extend into and are fixed in the roadway wall, spraying anchoring solidified slurry 17 is sprayed in the position area where the radial tensioning main reinforcement 9 and the branch reinforcement 10 are arranged on the roadway wall, and the thickness of the spraying anchoring solidified slurry 17 reaches the position of the steel tube arch column 1 which is far away from the roadway wall.
In this embodiment, the outer peripheral face of radial taut main muscle 9 and branch reinforcing bar 10 is coarse structure, and the outer peripheral face is provided with the edges and corners, also annotate the concrete thick liquid in the steel pipe arch post 1, like this, the spraying anchor that is convenient for congeals thick liquid 17 snatchs the adhesion effect.
As a preferred embodiment, the tensioning base component comprises a fixed base 12, a tensioning seat 13 and a tensioning ring 11, wherein the fixed base 12 is fixed at the bottom of the roadway, the bottom of the tensioning seat 13 is fixedly connected to the fixed base 12, the top of the tensioning seat 13 is provided with the tensioning ring 11, and the bottom of each radial tensioning main rib 9 is radially arranged on the tensioning ring 11.
In addition, a plurality of groups of the coal mine fault waterproof and permeable structures are arranged at the positions of faults of the coal mine tunnel wall at equal intervals. And the anchor grout 17 is sprayed up to the tunnel roof 14.
As a better embodiment, the grouting anchoring pipe assembly and the pumping pipe assembly 6 have the same structure and comprise guide pipes 3, wherein the outer surface of the steel pipe arch column 1 is uniformly provided with fastening pieces 4, the front side of the lower end of the steel pipe arch column 1 is provided with a grouting opening 2, the inner side of the upper end of each fastening piece 4 is fixedly connected with a guide pipe 3, and the front side of each guide pipe 3 is provided with a connecting pipe 5
In order to press fine cement mortar into a coal mine fault or draw water seepage out of the fault, the guide pipe 3 comprises a hollow steel pipe 31, an internal thread opening 33 is formed in the inner side of the front surface of the hollow steel pipe 31, and liquid seepage holes 32 are uniformly formed in the outer side of the hollow steel pipe 31.
In order to facilitate connection of an external cement pump truck or a water pump, the connecting pipe 5 comprises a clamping pipe 51, an outer hexagonal nut 52 is arranged on the rear side of the outer surface of the clamping pipe 51, and an outer threaded opening 53 is formed in the outer surface of the rear end of the clamping pipe 51, which is close to the rear side of the outer hexagonal nut 52.
In order to connect the conduit 3 and the connection pipe 5, the hollow steel pipe 31 and the male screw port 53 are fixedly connected by the female screw port 33.
In order to fixedly connect the conduit 3 and the steel tube arch post 1 together to form a whole, the fastener 4 comprises a lower retaining ring 41, an upper retaining ring 42 is arranged at the top end of the lower retaining ring 41, first bolts 43 are respectively connected to two ends of the lower retaining ring 41 and two ends of the upper retaining ring 42 in a penetrating manner, a screw rod 48 is arranged at the top end of the upper retaining ring 42, a fixed retaining ring 47 is fixedly connected to the top end of the screw rod 48, a movable retaining ring 45 is arranged at the top end of the fixed retaining ring 47, a second bolt 44 is arranged at one end of the movable retaining ring 45 and one end of the fixed retaining ring 47 in a penetrating manner, and.
The guide tube 3 is inserted into the inner sides of the movable and fixed clasps 45 and 47 in order to fix the guide tube 3 in the movable and fixed clasps 45 and 47, and the steel pipe arch 1 is inserted into the inner sides of the lower and upper clasps 41 and 42 in order to fix the steel pipe arch 1 in the lower and upper clasps 41 and 42.
The working principle of the invention is as follows: firstly, a steel pipe arch column 1 is installed on a roadway wall of a fault area of a coal mine, then a radial tensioning main rib and a branch steel bar are installed, then anchoring solidification slurry is sprayed on the roadway wall layer by layer, after one layer is solidified, the next layer is sprayed until the position of the steel pipe arch column 1 far away from the roadway wall is reached, then cement concrete is injected into the steel pipe arch column 1 from a grouting port 2, the cement concrete is filled in the steel pipe arch column 1, so that the strength of the steel pipe arch column 1 is improved, the collapse of the steel pipe arch column 1 is prevented, then a lower retaining ring 41 and an upper retaining ring 42 are clamped on the outer side of the steel pipe arch column 1, then a first bolt 43 is rotated clockwise, the steel pipe arch column 1 is fixed on the inner sides of the lower retaining ring 41 and the upper retaining ring 42, then a screw 48 is rotated clockwise, a fixed retaining ring 47 and the upper retaining ring 42 are fixed together, then a second bolt 44 is rotated anticlockwise, and a movable retaining ring 45 is rotated clockwise along a rotating shaft 46, the guide pipe 3 is placed inside the fixed clamping ring 47, the movable clamping ring 45 is rotated anticlockwise to clamp the movable clamping ring 45 on the outer side of the guide pipe 3, then the second bolt 44 is rotated clockwise to fix the guide pipe 3 on the inner sides of the movable clamping ring 45 and the fixed clamping ring 47, so that the steel pipe arch post 1 and the guide pipe 3 can be fixed together, then, fine cement mortar is pressed into the guide pipe 3 from the connecting pipe 5 of the grouting anchoring pipe assembly by using an external cement pump truck, part of the fine cement mortar seeps out from the seepage holes 32 and enters a coal mine fault layer, the coal mine fault layer is connected together to form a sealing state, and therefore underground water is effectively prevented from flowing out of the fault layer to cause collapse of the coal mine, the safety of the fault layer is improved, and then the connecting pipe 5 on the water pumping pipe assembly 6 is used for pumping out to prevent water seepage accidents.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (10)
1. A coal mine fault water penetration preventing structure comprises a steel pipe arch pillar (1), a plurality of radial tensioning main ribs (9), branch reinforcing steel bars (10), a tensioning base component, a grouting anchoring pipe component and a water pumping pipe component (6), wherein two groups of steel pipe arch pillars (1) which are tightly attached to a roadway wall (16) and are arranged in parallel are fixedly arranged at the position of the roadway wall at a coal mine fault position, the steel pipe arch pillar (1) is connected with the plurality of grouting anchoring pipe components and the plurality of water pumping pipe components which extend into a drill hole in the roadway wall (16), the outer end parts of the grouting anchoring pipe components and the outer end parts of the pipe components are respectively detachably connected with the grouting joint component (15) and the water pumping joint component, the extending depth of the inner end of the water pumping pipe component is greater than the extending depth of the inner end of the grouting anchoring pipe component, and the tensioning base component fixed on the bottom wall of a roadway is arranged at the central bottom of the steel pipe, taut base subassembly with radial direction between steel pipe arched column (1) is taut and is provided with many radial taut main reinforcement (9) that are radial arrangement that hug closely the tunnel wall setting, every all be provided with branch reinforcing bar (10) of arranging perpendicularly with it on radial taut main reinforcement (9), the both ends of branch reinforcing bar (10) all stretch into fix in the tunnel wall, all spray in the position region that is provided with radial taut main reinforcement (9) and branch reinforcing bar (10) on the tunnel wall is equipped with spraying anchor set grout (17), the thickness of spraying anchor set grout (17) is to the position department that is in steel pipe arched column (1) of keeping away from the tunnel wall.
2. The coal mine fault water-penetration preventing structure is characterized in that the outer peripheral surfaces of the radial tensioning main reinforcement (9) and the branch reinforcement (10) are both rough structures, edges and corners are arranged on the outer peripheral surfaces, and concrete grout is also poured into the steel pipe arch column (1).
3. The coal mine fault water-proof structure according to claim 1, characterized in that the tensioning base component comprises a fixed base (12), a tensioning seat (13) and a tensioning ring (11), wherein the fixed base (12) is fixed at the bottom of a roadway, the bottom of the tensioning seat (13) is fixedly connected to the fixed base (12), the top of the tensioning seat (13) is provided with the tensioning ring (11), and the bottom of each radial tensioning main rib (9) is radially arranged on the tensioning ring (11).
4. A coal mine fault water-penetration preventing structure according to claim 3, characterized in that a plurality of groups of coal mine fault water-penetration preventing structures are arranged at equal intervals at the position of the fault of the coal mine tunnel wall, and the anchoring solidification slurry (17) is sprayed upwards to the tunnel top wall (14).
5. The coal mine fault water-penetration preventing structure of claim 2, wherein the grouting anchoring pipe assembly and the water pumping pipe assembly (6) are identical in structure and comprise guide pipes (3), fasteners (4) are uniformly arranged on the outer surface of the steel pipe arch pillar (1), a grouting opening (2) is formed in the front side of the lower end of the steel pipe arch pillar (1), the guide pipes (3) are fixedly connected to the inner sides of the upper ends of the fasteners (4), and connecting pipes (5) are arranged on the front sides of the guide pipes (3).
6. The coal mine fault water-penetration preventing structure according to claim 5, wherein the guide pipe (3) comprises a hollow steel pipe (31), an internal thread opening (33) is formed in the inner side of the front surface of the hollow steel pipe (31), and liquid seepage holes (32) are uniformly formed in the outer side of the hollow steel pipe (31).
7. The coal mine fault water-penetration-preventing structure according to claim 6, wherein the connecting pipe (5) comprises a clamping pipe (51), an outer hexagonal nut (52) is arranged on the rear side of the outer surface of the clamping pipe (51), and an outer threaded opening (53) is formed in the outer surface of the rear end of the clamping pipe (51) close to the rear side of the outer hexagonal nut (52).
8. The coal mine fault water-penetration preventing structure is characterized in that the hollow steel pipe (31) is fixedly connected with the external thread opening (53) through the internal thread opening (33).
9. The coal mine fault water-penetration-preventing structure according to claim 5, wherein the fastening piece (4) comprises a lower snap ring (41), an upper snap ring (42) is arranged at the top end of the lower snap ring (41), first bolts (43) are respectively connected to two ends of the lower snap ring (41) and the upper snap ring (42) in a penetrating manner, a screw rod (48) is arranged at the top end of the upper snap ring (42), a fixed snap ring (47) is fixedly connected to the top end of the screw rod (48), a movable snap ring (45) is arranged at the top end of the fixed snap ring (47), second bolts (44) are arranged at one ends of the movable snap ring (45) and the fixed snap ring (47) in a penetrating manner, a rotating shaft (46) is arranged at the other ends of the movable snap ring (45) and the fixed snap ring (47) in a penetrating manner, and the conduit (3) is embedded in the inner sides of, the steel pipe arch pillar (1) is embedded in the inner sides of the lower retaining ring (41) and the upper retaining ring (42).
10. A coal mine fault water-penetration preventing structure according to claim 5, characterized in that the distance between two adjacent branch reinforcing bars (10) is 20-60 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910219556.2A CN109958461B (en) | 2019-03-20 | 2019-03-20 | Coal mine fault water-penetration-preventing structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910219556.2A CN109958461B (en) | 2019-03-20 | 2019-03-20 | Coal mine fault water-penetration-preventing structure |
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| CN109958461A CN109958461A (en) | 2019-07-02 |
| CN109958461B true CN109958461B (en) | 2020-06-02 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111963173A (en) * | 2020-03-16 | 2020-11-20 | 济宁矿业集团有限公司安居煤矿 | Construction method for advancing fault crossing during crossheading of coal mine |
| CN117108317B (en) * | 2023-10-25 | 2024-01-30 | 焦作煤业集团赵固（新乡）能源有限责任公司 | Grouting equipment is consolidated in mine tunnel |
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| DE19628493A1 (en) * | 1995-06-12 | 1998-01-22 | Niedlich Thorsten | Multiple layer seal for tunnel sections |
| CN101638987A (en) * | 2009-07-24 | 2010-02-03 | 中铁二十一局集团有限公司 | Tunnel construction method for crossing high-pressure water-enriched fracture zone with curtain grouting and grout stopping wall |
| CN103195443A (en) * | 2013-04-02 | 2013-07-10 | 山东科技大学 | Deep mining method capable of optimizing support parameters and preventing roadway delaying water gushing |
| CN103216249A (en) * | 2013-04-02 | 2013-07-24 | 中国矿业大学 | Waterproof support method of water sump of water-swellable soft rock of underground coal mine |
| CN103850688A (en) * | 2014-03-24 | 2014-06-11 | 昆明理工大学 | Method for dynamically superimposing coupling support on large-section roadway in complicated fault fracture zone |
| CN104405420A (en) * | 2014-10-29 | 2015-03-11 | 中铁建大桥工程局集团第五工程有限公司 | Method applied to airtight and waterproof treatment of gas tunnel |
| CN107060774A (en) * | 2017-05-08 | 2017-08-18 | 重庆电讯职业学院 | A kind of anti-tunnel portal wall damage device and construction method |
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2019
- 2019-03-20 CN CN201910219556.2A patent/CN109958461B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19628493A1 (en) * | 1995-06-12 | 1998-01-22 | Niedlich Thorsten | Multiple layer seal for tunnel sections |
| CN101638987A (en) * | 2009-07-24 | 2010-02-03 | 中铁二十一局集团有限公司 | Tunnel construction method for crossing high-pressure water-enriched fracture zone with curtain grouting and grout stopping wall |
| CN103195443A (en) * | 2013-04-02 | 2013-07-10 | 山东科技大学 | Deep mining method capable of optimizing support parameters and preventing roadway delaying water gushing |
| CN103216249A (en) * | 2013-04-02 | 2013-07-24 | 中国矿业大学 | Waterproof support method of water sump of water-swellable soft rock of underground coal mine |
| CN103850688A (en) * | 2014-03-24 | 2014-06-11 | 昆明理工大学 | Method for dynamically superimposing coupling support on large-section roadway in complicated fault fracture zone |
| CN104405420A (en) * | 2014-10-29 | 2015-03-11 | 中铁建大桥工程局集团第五工程有限公司 | Method applied to airtight and waterproof treatment of gas tunnel |
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| CN109958461A (en) | 2019-07-02 |
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