CN115075874A - Method for treating water burst in inclined shaft through-empty roadway area - Google Patents
Method for treating water burst in inclined shaft through-empty roadway area Download PDFInfo
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- CN115075874A CN115075874A CN202210891122.9A CN202210891122A CN115075874A CN 115075874 A CN115075874 A CN 115075874A CN 202210891122 A CN202210891122 A CN 202210891122A CN 115075874 A CN115075874 A CN 115075874A
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- water
- inclined shaft
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- shaft
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005553 drilling Methods 0.000 claims abstract description 14
- 239000011435 rock Substances 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000002349 well water Substances 0.000 claims description 2
- 235000020681 well water Nutrition 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 3
- 238000005065 mining Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 description 8
- 230000008023 solidification Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 230000003628 erosive effect Effects 0.000 description 3
- 238000011835 investigation Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Sewage (AREA)
Abstract
A method for treating water burst in an inclined shaft through empty lane area belongs to the technical field of mining engineering and can solve the problem that shaft water burst is caused by underground water accumulation in a mine inclined shaft through waste empty lane area to influence mine safety production. A water-resisting layer is formed by filling the water-resisting layer at the bottom of a waste empty lane at the upper part of a shaft water burst area by adopting a technical process combining empty lane filling, grouting plugging and accumulated water drainage; grouting behind the shaft wall to block the water flowing crack and block the accumulated water flowing channel; and accumulated water in the upper empty lane of the shaft is drained in time through construction drainage drilling. Thereby controlling the problem of water burst of the shaft and ensuring the safe use of the shaft.
Description
Technical Field
The invention belongs to the technical field of mining engineering, and particularly relates to a method for treating water burst in an inclined shaft empty lane penetrating area.
Background
In the coal mining process, there is a large amount of inclined shaft to wear abandonment empty lane phenomenon, because rainwater infiltration in rainy season, surface water invasion, groundwater flow etc. form ponding in the abandonment empty lane very easily, ponding can be through inclined shaft country rock crack entering inclined shaft in simultaneously, ponding corrodes inclined shaft country rock and support body for a long time, can bring great potential safety hazard for inclined shaft country rock safety, the inclined shaft gushes water simultaneously also can bring the safety risk for the electrical equipment in inclined shaft and the shaft bottom, the possibility of flooding the well can appear even. Therefore, the method has important significance for treating water burst of the inclined shaft, draining accumulated water in the abandoned empty roadway and protecting the stability of surrounding rocks of the inclined shaft and the safety of a mine.
Disclosure of Invention
The invention provides a technical method for treating water burst in a deviated well-penetrating empty lane area, aiming at solving the problem of large amount of water burst in a deviated well-penetrating abandoned empty lane area well bore wall. The method can effectively prevent the accumulated water of the abandoned empty roadway from corroding the surrounding rock of the inclined shaft and the wall of the shaft well from gushing a large amount of water, and maintain the stability of the surrounding rock of the inclined shaft and the safe production of the mine.
The invention adopts the following technical scheme:
a method for treating water burst in a cross drift area of an inclined shaft comprises the following steps:
firstly, constructing and inspecting a drill hole and a plurality of filling drill holes in the top plate of the inclined shaft in the water burst area along the inclined direction of the inclined shaft, installing filling pipelines in the filling drill holes, extending one end of each filling pipeline into an empty lane at the upper part of the inclined shaft, filling the empty lane at the upper part, and forming a filling water-insulation layer on the bottom plate of the empty lane;
secondly, constructing grouting and drilling holes on two sides and a top plate of the water burst area of the inclined shaft, and plugging a surrounding rock water flowing crack of the shaft by grouting to form a circle of water blocking layer;
and thirdly, constructing a plurality of drainage drill holes on the top plate and two sides of the inclined shaft, and draining the accumulated water in the upper part of the inclined shaft in the roadway and the water in the surrounding rock cracks.
Furthermore, the distance between the filling drill holes in the first step is 3-6m, and the included angle between the filling drill holes and the inclined shaft top plate is 70-90 degrees.
Further, in the first step the investigation borehole is located at the end of the slant well in the direction of inclination.
Furthermore, the lengths L of the filling pipelines extending into the empty lane at the upper part of the inclined shaft in the first step are the same, and L is more than 0.3m and less than 0.5 m.
Furthermore, in the first step, the thickness of the filling water-resisting layer is more than or equal to 0.3m, the filling range covers the inclined well water inrush area, and the filling range extends to two sides by not less than 5 m.
And further, in the second step, a safety distance which is more than or equal to 500mm is reserved between the grouting drill hole and the empty roadway and between the grouting drill hole and the filling water-stop layer.
Further, in the third step, the water drainage drill holes are distributed, and the number of the water drainage drill holes is not less than 2.
And further, in the third step, the drainage drill hole positioned on the top plate penetrates through the filling water-resisting layer to enter the empty roadway, and the diameter of the drainage drill hole is not less than 50 mm.
And furthermore, in the third step, the water drainage drill holes positioned on the two sides are positioned at the bottom of the inclined roadway sides, the depth is not less than the depth of the grouting drill hole, and the diameter is not less than 50 mm.
The filling material has certain fluidity, short solidification time and can not be corroded by water accumulation after solidification; the grouting plugging material has good permeability, quick solidification and high strength, and is not afraid of underground water erosion after solidification. Conventional inorganic filler materials.
The invention has the following beneficial effects:
the invention adopts the technical process of combining empty lane filling, grouting plugging and accumulated water drainage, and a water-resisting layer is formed at the bottom of a waste empty lane at the upper part of a water burst area of a shaft by filling; grouting behind the shaft wall to block the water flowing crack and block the accumulated water flowing channel; and accumulated water in the upper empty lane of the shaft is drained in time through construction drainage drilling. Thereby controlling the problem of water burst of the shaft and ensuring the safe use of the shaft.
Drawings
Fig. 1 is a cross-sectional view of a gob-side entry filling bore arrangement.
Fig. 2 is a cross-sectional view of a gob-side entry filling bore arrangement.
FIG. 3 is a cross-sectional view of a slope well surrounding rock water flowing fracture grouting drill hole arrangement.
FIG. 4 is a cross-sectional view of a deviated well drainage bore arrangement.
Wherein, 1-inclined shaft; 2-empty lane; 3-water gushing area; 4, filling and drilling; 5-investigating the borehole; 6-grouting and drilling; 7-draining water and drilling; 8-filling a water-resisting layer.
Detailed Description
The invention is further explained with reference to the accompanying drawings.
As shown in the figure, the technical method for treating water burst in the inclined shaft through-empty roadway region comprises the following steps:
the method comprises the steps of firstly constructing upper empty lane filling drill holes and investigation drill holes on a top plate of the inclined shaft at certain intervals and angles, wherein the filling drill holes need to cover the whole water inrush area, penetrate through upper abandoned empty lanes, and are internally provided with filling pipelines, and the heights of the filling pipelines entering the empty lanes are consistent and are not more than 0.5m and not less than 0.3 m. And secondly, constructing grouting and drilling on the top plate and the two sides of the top plate in the water burst area of the inclined shaft, wherein the depth of the grouting and drilling is determined according to the relation between the inclined shaft and the empty roadway, and a certain safety distance is reserved between the drilling and the empty roadway and between the drilling and the water-resisting layer of the empty roadway. At last, at least 2 drainage drill holes are respectively constructed on the top plate and two sides of the water burst area of the inclined shaft, and the drainage drill holes are distributed in a scattered way; the roof drainage water drill hole penetrates through the filling water-resisting layer to enter the empty roadway, and the diameter of the drill hole is not less than 50 mm; the two sides of the water drainage drill holes are positioned at the bottom of the inclined shaft roadway sides, the drilling depth is not less than the grouting plugging drilling depth, and the drilling diameter is not less than 50 mm.
The construction sequence of the water burst treatment process is as follows: firstly, constructing inclined shaft top plate filling drill holes, and performing filling construction after discharging accumulated water and waste in an upper empty lane; then constructing a top plate of the inclined shaft and two sides of grouting drill holes to plug the surrounding rock water flowing cracks; and finally, constructing a water drainage and drainage drill hole for the empty roadway and the surrounding rock fracture, and draining accumulated water in the empty roadway and the surrounding rock fracture at the upper part of the inclined shaft.
Grouting material characteristics: the filling material for the empty lane has certain fluidity, short solidification time and no fear of water accumulation erosion after solidification; the grouting plugging material has good permeability, quick solidification and high strength, and is not afraid of underground water erosion after solidification.
Claims (9)
1. A method for treating water burst in a deviated well through empty lane area is characterized by comprising the following steps: the method comprises the following steps:
firstly, constructing and inspecting a drill hole and a plurality of filling drill holes in the inclined shaft top plate in the water burst area along the inclined direction of the inclined shaft, installing a filling pipeline in the filling drill hole, extending one end of the filling pipeline into a hollow lane at the upper part of the inclined shaft, filling the hollow lane at the upper part, and forming a filling water-stop layer at the bottom plate of the hollow lane;
secondly, constructing grouting and drilling holes on two sides and a top plate of the water burst area of the inclined shaft, and plugging a surrounding rock water flowing crack of the shaft by grouting to form a circle of water blocking layer;
and thirdly, constructing a plurality of drainage drill holes on the top plate and two sides of the inclined shaft, and draining water accumulated in the upper empty lane of the inclined shaft and water accumulated in the cracks of the surrounding rock.
2. The method for treating water burst in the inclined shaft drift-through area according to claim 1, wherein the method comprises the following steps: in the first step, the distance between the filling drill holes is 3-6m, and the included angle between the filling drill holes and the inclined shaft top plate is 70-90 degrees.
3. The method for treating water burst in the inclined shaft drift-through area according to claim 1, wherein the method comprises the following steps: in the first step the survey borehole is located at the end of the slant well.
4. The method for treating water burst in the inclined shaft drift-through area according to claim 1, wherein the method comprises the following steps: in the first step, the lengths L of the filling pipelines extending into the upper empty lane of the inclined shaft are the same, and L is more than 0.3m and less than 0.5 m.
5. The method for treating water burst in the inclined shaft drift-through area according to claim 1, wherein the method comprises the following steps: in the first step, the thickness of the filling water-resisting layer is more than or equal to 0.3m, the filling range covers the inclined well water inrush area, and the filling range extends to two sides by no less than 5 m.
6. The method for treating water burst in the inclined shaft drift-through area according to claim 1, wherein the method comprises the following steps: and in the second step, a safety distance which is more than or equal to 500mm is reserved between the grouting drill hole and the empty roadway and between the grouting drill hole and the filling water-resisting layer.
7. The method for treating water burst in the inclined shaft drift-through area according to claim 1, wherein the method comprises the following steps: and in the third step, the water drainage drill holes are distributed, and the number of the water drainage drill holes is not less than 2.
8. The method for treating water burst in the inclined shaft drift-through area according to claim 1, wherein the method comprises the following steps: and in the third step, the drainage drill hole positioned on the top plate penetrates through the filling water-resisting layer to enter the empty roadway, and the diameter of the drainage drill hole is not less than 50 mm.
9. The method for treating water burst in the inclined shaft drift-through area according to claim 1, wherein the method comprises the following steps: and thirdly, the water drainage drill holes positioned on the two sides are positioned at the bottom of the inclined shaft roadway sides, the depth is not less than the depth of the grouting drill hole, and the diameter is not less than 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210891122.9A CN115075874A (en) | 2022-07-27 | 2022-07-27 | Method for treating water burst in inclined shaft through-empty roadway area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210891122.9A CN115075874A (en) | 2022-07-27 | 2022-07-27 | Method for treating water burst in inclined shaft through-empty roadway area |
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| Publication Number | Publication Date |
|---|---|
| CN115075874A true CN115075874A (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210891122.9A Pending CN115075874A (en) | 2022-07-27 | 2022-07-27 | Method for treating water burst in inclined shaft through-empty roadway area |
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| CN (1) | CN115075874A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116024999A (en) * | 2023-01-03 | 2023-04-28 | 中煤科工西安研究院(集团)有限公司 | Strong water-rich loose layer coal mine inclined shaft water-gushing curtain water interception treatment method |
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2022
- 2022-07-27 CN CN202210891122.9A patent/CN115075874A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116024999A (en) * | 2023-01-03 | 2023-04-28 | 中煤科工西安研究院(集团)有限公司 | Strong water-rich loose layer coal mine inclined shaft water-gushing curtain water interception treatment method |
| CN116024999B (en) * | 2023-01-03 | 2024-06-04 | 中煤科工西安研究院(集团)有限公司 | Strong water-rich loose layer coal mine inclined shaft water-gushing curtain water interception treatment method |
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