CN114439505A - Three-dimensional grouting method for roadway of roadway engineering - Google Patents
Three-dimensional grouting method for roadway of roadway engineering Download PDFInfo
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- CN114439505A CN114439505A CN202111429517.9A CN202111429517A CN114439505A CN 114439505 A CN114439505 A CN 114439505A CN 202111429517 A CN202111429517 A CN 202111429517A CN 114439505 A CN114439505 A CN 114439505A
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- grouting
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000010276 construction Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000011435 rock Substances 0.000 claims abstract description 14
- 239000011440 grout Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 230000002787 reinforcement Effects 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims abstract description 6
- 229920000642 polymer Polymers 0.000 claims abstract description 5
- 239000012779 reinforcing material Substances 0.000 claims abstract description 5
- 239000002002 slurry Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 7
- 238000005728 strengthening Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007569 slipcasting Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Abstract
The invention discloses a three-dimensional grouting method for a roadway of a roadway engineering, which comprises the following steps: step 1, determining a construction area, performing shallow grouting construction on the top plate construction of the construction area, then adopting composite polymer double-liquid slurry to quickly grout and reinforce surrounding rocks, and plugging a water spraying path; step 2, selecting the position of a deep grouting hole, performing deep grouting construction, and adopting an inorganic reinforcing material to perform grouting reinforcement on surrounding rock; and 3, after the construction of the step 1 and the step 2 is finished and the top plate still has a large amount of water, reducing the distance between grouting holes in the step 1 and the step 2, and then circulating the step 1 and the step 2 until the water of the top plate disappears. The invention combines the grouting in the deep and shallow areas to consolidate the laneway in the area with poor laneway molding, difficult support and serious water spraying into a whole, thereby realizing the three-dimensional grouting of the laneway and quickly realizing the purposes of molding control, strengthening support and grouting water plugging.
Description
Technical Field
The invention belongs to the technical field of a three-dimensional grouting method, and particularly relates to a three-dimensional grouting method for a roadway of a roadway engineering.
Background
The surrounding rock of the roadway engineering is influenced by geology and self conditions, so that the roadway is formed in various ways, water leakage phenomenon occurs in partial roadways, supporting is difficult, and high caving points occur. Therefore, how to avoid poor tunnel forming, difficult supporting and water plugging caused by surrounding rock crushing and crack development of the tunnel becomes a main research direction of the industry.
Disclosure of Invention
The invention aims to provide a three-dimensional grouting method for a roadway of a roadway engineering, which solves the problem of poor roadway molding caused by surrounding rock crushing and crack development of the conventional roadway.
The technical scheme adopted by the invention is as follows: the three-dimensional grouting method for the roadway of the roadway engineering comprises the following steps:
step 1, determining a construction area, performing shallow grouting construction on the top plate construction of the construction area, then adopting composite polymer double-liquid slurry to quickly grout and reinforce surrounding rocks, and plugging a water spraying path;
step 2, selecting the position of a deep grouting hole, performing deep grouting construction, and adopting an inorganic reinforcing material to perform grouting reinforcement on surrounding rock;
and 3, after the construction of the step 1 and the step 2 is finished and the top plate still has a large amount of water, reducing the distance between grouting holes in the step 1 and the step 2, and then circulating the step 1 and the step 2 until the water of the top plate disappears.
The present invention is also characterized in that,
step 1 shallow grouting specifically comprises the following steps: and constructing grouting holes by using anchor rods and a cable drilling machine, embedding a steel pipe in each hole to form a shallow grouting pipe, arranging a through hole close to the pipe orifice, and welding and directly connecting the pipe orifice of the shallow grouting pipe with a rubber head of a high-pressure rubber pipe of a grouting pump.
The length of the shallow grouting pipe is 2m, and the diameter of the through hole is 6 mm.
And winding the woven bag at a position away from the pipe opening, fastening the woven bag by using binding wires, coating hole sealing glue on the woven bag, and inserting the shallow grouting pipe into the grouting drill hole.
In the step 1, a double-liquid grouting pump is selected during grouting, the pressure of a grouting final hole is not less than 4MPa, and the grouting amount of each grouting hole is not more than 1 ton.
The deep grouting in the step 2 specifically comprises the following steps: and (3) making a deep grouting pipe by embedding a steel pipe in the hole, wherein the length of the deep grouting pipe is 3.5-5m, a through hole is formed at a distance from the pipe orifice, and the deep grouting pipe orifice is welded and directly communicated with a rubber head of a high-pressure rubber pipe of a grouting pump.
The invention has the beneficial effects that:
1. based on the space effect and the characteristics of grout, the roadway in the area with poor roadway molding, difficult support and serious water spraying is consolidated into a whole by combining grouting in the depth area, so that the three-dimensional grouting of the roadway is realized, and the purposes of molding control, support reinforcement and grouting water plugging can be quickly realized.
2. The composite polymer material is adopted for grouting the shallow part of the roadway, the material can quickly bond coal bodies, the effects of reinforcing surrounding rocks and strengthening anchor bolt support are achieved, and the influence time of tunneling circulation can be reduced.
3. Through deep slip casting, shallow slip casting and the mutual cooperation of macromolecular material, inorganic reinforcement material, can reach reduction in production cost, reach the purpose of firm tunnel, slip casting water shutoff fast, can reduce the tunnel and reprocess the frequency, provide the guarantee for the safety in production.
Drawings
FIG. 1 is a schematic diagram of deep and shallow three-dimensional grouting of a roadway three-dimensional grouting method for roadway engineering according to the invention;
FIG. 2 is a schematic view of shallow grouting hole sealing in a roadway of roadway engineering according to the three-dimensional grouting method of the invention;
fig. 3 is a schematic diagram of deep grouting hole sealing of the roadway three-dimensional grouting method for roadway engineering.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention provides a three-dimensional grouting method for a roadway of a roadway engineering, which comprises the following steps:
step 1, determining a construction area, performing shallow grouting construction on the top plate construction of the construction area, then adopting composite polymer double-liquid slurry to quickly grout and reinforce surrounding rocks, and plugging a water spraying path;
step 1 shallow grouting specifically comprises the following steps: constructing grouting holes by using an anchor rod and a cable drilling machine, wherein a steel pipe embedded in the holes is used as a shallow grouting pipe, a through hole is formed in a position close to and away from the pipe orifice, the pipe orifice of the shallow grouting pipe is welded and directly communicated, the through hole is connected with a rubber head of a high-pressure rubber pipe of a grouting pump, the length of the shallow grouting pipe is 2m, the diameter of the through hole is 6mm, a woven bag is wound at a position away from the pipe orifice and is tightly bound by a binding wire, hole sealing rubber is coated on the woven bag, the shallow grouting pipe is inserted into a grouting drill hole, a double-liquid grouting pump is selected in step 1 during grouting, the pressure of a final grouting hole is not less than 4MPa, and the grouting amount of each grouting hole is not more than 1 ton;
step 2, selecting the position of a deep grouting hole, performing deep grouting construction, and adopting an inorganic reinforcing material to perform grouting reinforcement on surrounding rock;
in the step 2, deep grouting specifically comprises the following steps: and (3) making a deep grouting pipe by embedding a steel pipe in the hole, wherein the length of the deep grouting pipe is 3.5-5m, a through hole is formed at a distance from the pipe orifice, and the deep grouting pipe orifice is welded and directly communicated with a rubber head of a high-pressure rubber pipe of a grouting pump.
And 3, after the construction of the step 1 and the step 2 is finished and the top plate still has a large amount of water, reducing the distance between grouting holes in the step 1 and the step 2, and then circulating the step 1 and the step 2 until the water on the top plate disappears.
Example 1
The invention provides a three-dimensional grouting method for a roadway of a roadway engineering, which comprises the following steps of 1, determining a construction area according to roadway forming control, supporting difficulty and whether water leakage occurs, performing shallow grouting construction on a top plate of the construction area, then adopting composite polymer double-liquid slurry to quickly perform grouting to reinforce surrounding rock, and plugging a water spraying path;
step 1 shallow grouting specifically comprises the following steps: constructing grouting holes by using an anchor rod and a cable drilling machine, wherein the aperture of each shallow grouting hole is 32mm, the hole spacing is 1500-3000mm, the hole depth is 2.5-3.5m, the inclination angle of a drilled hole is 60-90 degrees, 4' steel pipes are pre-embedded in the holes to form shallow grouting pipes, a through hole is drilled at intervals of 300mm within the range of 1-2 m from the pipe orifice to serve as a grout outlet, the pipe orifice of each shallow grouting pipe is welded directly and connected with a glue head of a high-pressure rubber pipe of a grouting pump, the length of each shallow grouting pipe is 2m, the diameter of each through hole is 6mm, a woven bag is wound within the range of 1m from the pipe orifice and is tied tightly by three binding wires, the woven bag is coated with hole sealing glue, the shallow grouting pipes are inserted into the grouting drilled holes, the thickness of the woven bag wound by the grouting pipes is matched with the aperture of the grouting holes, a double-fluid grouting pump is selected in the step 1 during grouting, the final hole pressure is not less than 4MPa and the grouting amount of each grouting hole is not more than 1 ton, after the whole work of shallow grouting construction is finished, staying for 15 minutes, and then performing the step 2;
step 2, selecting the position of a deep grouting hole, wherein the hole interval is 1500-3000mm, constructing the grouting hole by using an anchor rod, a cable drilling machine and a hydraulic drilling machine, the hole diameter is 32mm, the hole depth is 2.5-3.5m, the inclination angle of a drilling hole is 60-90 degrees, performing deep grouting construction, and adopting an inorganic reinforcing material for grouting and reinforcing surrounding rock;
in the step 2, deep grouting specifically comprises the following steps: 4' steel pipes are pre-buried in the holes to be used as deep grouting pipes, the length of each deep grouting pipe is 3.5-5m, and the deep grouting pipes are arranged at intervals of 500mm within the range of 1-4 m from the pipe orifice
The through hole is used as a grout outlet, and the deep grouting pipe orifice is welded
The straight-through is connected with a rubber head of a high-pressure rubber pipe of a grouting pump.
And 3, after the construction of the step 1 and the step 2 is finished and the top plate still has a large amount of water, reducing the distance between grouting holes in the step 1 and the step 2, and then circulating the step 1 and the step 2 until the water of the top plate disappears.
By the mode, the three-dimensional grouting method for the roadway of the roadway engineering is based on the space effect and the characteristics of grout, and the roadway in the area with poor roadway molding, difficult supporting and serious water spraying is consolidated into a whole by combining grouting in the deep and shallow areas, so that three-dimensional grouting of the roadway is realized, and the purposes of molding control, supporting reinforcement, grouting and water plugging can be quickly realized.
Claims (6)
1. The three-dimensional grouting method for the roadway of the roadway engineering is characterized by comprising the following steps of:
step 1, determining a construction area, performing shallow grouting construction on the top plate construction of the construction area, then adopting composite polymer double-liquid slurry to quickly grout and reinforce surrounding rocks, and plugging a water spraying path;
step 2, selecting the position of a deep grouting hole, performing deep grouting construction, and adopting an inorganic reinforcing material to perform grouting reinforcement on surrounding rock;
and 3, after the construction of the step 1 and the step 2 is finished and the top plate still has a large amount of water, reducing the distance between grouting holes in the step 1 and the step 2, and then circulating the step 1 and the step 2 until the water of the top plate disappears.
2. The three-dimensional grouting method for the roadway of the roadway engineering according to claim 1, wherein the shallow grouting in the step 1 is specifically: and constructing grouting holes by using anchor rods and a cable drilling machine, embedding a steel pipe in each hole to form a shallow grouting pipe, arranging a through hole close to the pipe orifice, and welding and directly connecting the pipe orifice of the shallow grouting pipe with a rubber head of a high-pressure rubber pipe of a grouting pump.
3. The three-dimensional grouting method for the roadway engineering roadway according to claim 2, wherein the length of the shallow grouting pipe is 2m, and the diameter of the through hole is 6 mm.
4. The method as claimed in claim 2, wherein woven bags are wound around the pipe opening and tightened with binding wires, sealing glue is applied to the woven bags, and the shallow grouting pipe is inserted into the grouting hole.
5. The three-dimensional grouting method for the roadway engineering roadway of claim 1, wherein a double-liquid grouting pump is selected in the grouting in the step 4, the pressure of a grouting final hole is not less than 4MPa, and the grouting amount of each grouting hole is not more than 1 ton.
6. The three-dimensional grouting method for the roadway of the roadway engineering according to claim 1, wherein the deep grouting in the step 2 specifically comprises: and (3) making a deep grouting pipe by embedding a steel pipe in the hole, wherein the length of the deep grouting pipe is 3.5-5m, a through hole is formed at a distance from the pipe orifice, and the deep grouting pipe orifice is welded and directly communicated with a rubber head of a high-pressure rubber pipe of a grouting pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111429517.9A CN114439505A (en) | 2021-11-29 | 2021-11-29 | Three-dimensional grouting method for roadway of roadway engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111429517.9A CN114439505A (en) | 2021-11-29 | 2021-11-29 | Three-dimensional grouting method for roadway of roadway engineering |
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| Publication Number | Publication Date |
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| CN114439505A true CN114439505A (en) | 2022-05-06 |
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| CN202111429517.9A Pending CN114439505A (en) | 2021-11-29 | 2021-11-29 | Three-dimensional grouting method for roadway of roadway engineering |
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Citations (10)
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|---|---|---|---|---|
| CN102322273A (en) * | 2011-05-20 | 2012-01-18 | 中国矿业大学 | A kind of roadway floor anchor is annotated integrated reinforcement means |
| CN103061785A (en) * | 2012-12-28 | 2013-04-24 | 山东大学 | Borehole casing pressure-proof seepage sealing grouting device and process for roadway breaking water burst surrounding rock |
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| CN106089252A (en) * | 2016-08-09 | 2016-11-09 | 北京矿冶研究总院 | Grouting reinforcement method for inhomogeneous loose bodies |
| KR20170087786A (en) * | 2016-01-21 | 2017-07-31 | 이평우 | Reinforcement method of Tunnel |
| CN109372555A (en) * | 2018-12-26 | 2019-02-22 | 中国矿业大学 | A kind of fault disruption zone area tunnel 3 D stereo grouting support method |
| CN111119935A (en) * | 2019-12-04 | 2020-05-08 | 太原理工大学 | Multi-layer grouting reinforcement method for surrounding rock of soft and broken roadway structure |
| CN111594231A (en) * | 2020-06-03 | 2020-08-28 | 贵州盘江精煤股份有限公司 | Grouting reinforcement method for deep surrounding rock broken water erosion roadway |
| CN113153396A (en) * | 2021-04-19 | 2021-07-23 | 华北科技学院 | Hole sealing, grouting and water plugging reinforcing method for anchor cable holes in roadway water spraying area |
| CN113217031A (en) * | 2021-05-31 | 2021-08-06 | 山东固立特新材料科技有限公司 | Water plugging treatment method for tunneling roadway fault |
-
2021
- 2021-11-29 CN CN202111429517.9A patent/CN114439505A/en active Pending
Patent Citations (10)
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|---|---|---|---|---|
| CN102322273A (en) * | 2011-05-20 | 2012-01-18 | 中国矿业大学 | A kind of roadway floor anchor is annotated integrated reinforcement means |
| CN103061785A (en) * | 2012-12-28 | 2013-04-24 | 山东大学 | Borehole casing pressure-proof seepage sealing grouting device and process for roadway breaking water burst surrounding rock |
| CN104481560A (en) * | 2014-12-09 | 2015-04-01 | 中煤第一建设有限公司 | Roadway roof aquifer treatment method |
| KR20170087786A (en) * | 2016-01-21 | 2017-07-31 | 이평우 | Reinforcement method of Tunnel |
| CN106089252A (en) * | 2016-08-09 | 2016-11-09 | 北京矿冶研究总院 | Grouting reinforcement method for inhomogeneous loose bodies |
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| CN111594231A (en) * | 2020-06-03 | 2020-08-28 | 贵州盘江精煤股份有限公司 | Grouting reinforcement method for deep surrounding rock broken water erosion roadway |
| CN113153396A (en) * | 2021-04-19 | 2021-07-23 | 华北科技学院 | Hole sealing, grouting and water plugging reinforcing method for anchor cable holes in roadway water spraying area |
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