CN113669070B - Mining haulage roadway construction method - Google Patents
Mining haulage roadway construction method Download PDFInfo
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- CN113669070B CN113669070B CN202110970976.1A CN202110970976A CN113669070B CN 113669070 B CN113669070 B CN 113669070B CN 202110970976 A CN202110970976 A CN 202110970976A CN 113669070 B CN113669070 B CN 113669070B
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- roadway
- tunneling
- karst cave
- detection hole
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- 238000010276 construction Methods 0.000 title claims abstract description 19
- 238000005065 mining Methods 0.000 title claims abstract description 17
- 230000005641 tunneling Effects 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 239000011435 rock Substances 0.000 claims abstract description 21
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 235000019994 cava Nutrition 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 239000002699 waste material Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
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- 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
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- 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
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Soil Sciences (AREA)
- Geophysics (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a mining haulage roadway construction method, which is suitable for fracture communication type karst caves, and comprises the following steps: s1, constructing detection holes in front of, above and below the roadway driving face in the roadway driving direction respectively to detect the karst cave development condition within a preset distance from the current roadway driving face; s2, pouring slurry into the karst cave by taking a detection hole communicated with the karst cave as a grouting hole for the detected karst cave until the karst cave and the detection hole are filled, and finally sealing the detection hole; s3, after the surrounding rock is reinforced by the injected slurry, continuously tunneling a roadway to a preset distance; s4, judging whether the roadway driving work is finished at present, and if the roadway driving work is finished, finishing the work; otherwise, returning to S1 to continue the execution until the tunneling work is completed. The invention solves the problems of difficult roadway tunneling and difficult supporting in karst cave development surrounding rock.
Description
Technical Field
The invention relates to the technical field of mining, in particular to a mining haulage roadway construction method.
Background
The cracks and caverns developing in the surrounding rock can cause great difficulties in the excavation of mining haulage roadways. In the surrounding rock developed by the karst cave, the geological conditions are complex, the karst caves are connected through cracks, the lithology near the karst cave is poor, the surrounding rock is weak and broken, and the surrounding rock is seriously argillized when meeting water. The problems of great difficulty, slow construction progress, difficult support, easy roof fall, rib spalling, bottom plate collapse and the like are faced when directly tunneling the tunnel in the surrounding rock, and on one hand, safety accidents are easily induced; on the other hand, some ore resources are difficult to mine, and resource waste is caused.
Hekun proposed a method for tunneling a tunnel in karst cave development surrounding rock, firstly supporting and then pouring in a paper published in coal mine modernization, namely, discussion of technical measures for karst cave tunnel penetration construction in a gold mining area.
Disclosure of Invention
The invention provides a mining haulage roadway construction method, which aims to solve the technical problem that safety accidents are easily caused when karst cave surrounding rocks are seriously slimed when water exists in the conventional method.
In order to solve the technical problems, the invention provides the following technical scheme:
a mining haulage roadway construction method is suitable for fracture-communicated karst caves, and comprises the following steps:
s1, constructing detection holes in front of, above and below the roadway driving face in the roadway driving direction respectively to detect the karst cave development condition within a preset distance from the current roadway driving face;
s2, pouring slurry into the karst cave by taking a detection hole communicated with the karst cave as a grouting hole for the detected karst cave until the karst cave and the detection hole are filled, and finally sealing the detection hole;
s3, after the surrounding rock is reinforced by the injected slurry, continuously tunneling a roadway to the preset distance;
s4, judging whether the roadway driving work is finished at present, if the roadway driving work is finished, finishing the work; if the tunneling work is not finished, the operation returns to S1 to continue to be executed until the tunneling work is finished.
Optionally, the length of the detection hole is 4-6 meters.
Optionally, the axial direction of the detection hole above the tunneling direction and the tunneling direction form a first preset angle.
Optionally, the axial direction of the detection hole located below the tunneling direction and the tunneling direction form a second preset angle.
Optionally, the value ranges of the first preset angle and the second preset angle are both 10-30 degrees.
Optionally, the diameter of the detection hole is 40-100 mm.
Optionally, the slurry is a concrete slurry.
Optionally, the preset distance is 4-6 meters.
The technical scheme provided by the invention has the beneficial effects that at least:
according to the mining transportation roadway construction method provided by the invention, when a roadway is excavated in weak and broken surrounding rocks, the karst cave is detected through construction drilling and grouting reinforcement is carried out, so that the stability of the surrounding rocks is greatly improved. For the roadway after tunneling, the safety risks of roof caving, inclined slope, bottom plate collapse and the like are greatly reduced, the problems of difficult roadway tunneling and difficult supporting in the karst cave development surrounding rock are solved, and the safe tunneling of the roadway and the safe mining of resources are ensured; the method has important significance for guaranteeing the construction safety of workers and avoiding ore resource waste.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a mining haulage roadway construction method provided by an embodiment of the invention;
FIG. 2 is a schematic diagram of a cavern distribution;
FIG. 3 is a schematic view of a borehole distribution;
FIG. 4 is a schematic illustration of borehole grouting;
fig. 5 is a schematic diagram of roadway driving after grouting.
Description of reference numerals:
1. a roadway; 2. surrounding rocks; 3. karst cave; 4. a detection hole; 5. and (4) slurry.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 5, in the embodiment, when a roadway is excavated in a surrounding rock in which a karst cave is developed, the development conditions of the karst cave in front of, above and below the excavation of the roadway are detected through construction detection holes, and grouting reinforcement is performed according to the detection results to improve the stability of the surrounding rock.
Specifically, the execution flow of the method is shown in fig. 1, and sequentially includes the following steps:
s1, constructing detection holes 4 in front of, above and below the roadway driving face in the roadway driving direction respectively to detect the development condition of the karst cave 3 within a preset distance from the current roadway driving face;
in the present embodiment, as shown in fig. 3, the length of the detection hole 4 is 4-6 m, and the diameter is 40-100 mm. The axial direction of the detection hole 4 above the tunneling direction and the tunneling direction form an angle of 10-30 degrees. Meanwhile, the axial direction of the detection hole 4 positioned below the tunneling direction of the tunnel forms an angle of 10-30 degrees with the tunneling direction of the tunnel.
S2, pouring slurry 5 into the karst cave 3 by taking the detection hole 4 communicated with the karst cave 3 as a grouting hole for the detected karst cave 3 until the karst cave 3 and the detection hole 4 are filled, and finally sealing the detection hole 4; as shown in fig. 4.
The slurry 5 for casting may be a concrete slurry.
S3, after the surrounding rock 2 is reinforced by the injected slurry 5, continuously tunneling the roadway 1 to a preset distance;
in the present embodiment, the preset distance is 4 to 6 meters.
S4, judging whether the roadway driving work is finished at present, and if the roadway driving work is finished, finishing the work; if the tunneling work is not finished, the operation returns to S1 to continue to be executed until the tunneling work is finished.
In summary, the mining transportation roadway construction method of the embodiment is characterized in that the karst cave is detected by drilling in front of, above and below the roadway driving working face in the roadway driving direction, surrounding rocks are reinforced by grouting into the karst cave, and after the surrounding rocks are reinforced, the roadway is continuously driven, so that the purposes of safe construction and safe mining are achieved. The problems of difficult roadway tunneling and difficult supporting in the karst cave development surrounding rock are solved, and the safe tunneling of the roadway and the safe exploitation of resources are ensured; the method has important significance for guaranteeing the construction safety of workers and avoiding ore resource waste.
Further, it should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that while the above describes a preferred embodiment of the invention, it will be appreciated by those skilled in the art that, once the basic inventive concepts have been learned, numerous changes and modifications may be made without departing from the principles of the invention, which shall be deemed to be within the scope of the invention. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Claims (3)
1. A mining haulage roadway construction method is suitable for fracture-communicated karst caves and is characterized by comprising the following steps:
s1, constructing detection holes in front of, above and below the roadway driving working face in the roadway driving direction respectively to detect the karst cave development condition within a preset distance from the current roadway driving working face;
s2, pouring slurry into the karst cave by taking a detection hole communicated with the karst cave as a grouting hole for the detected karst cave until the karst cave and the detection hole are filled, and finally sealing the detection hole;
s3, after the surrounding rock is reinforced by the injected slurry, continuously tunneling a roadway to the preset distance;
s4, judging whether the roadway driving work is finished at present, and if the roadway driving work is finished, finishing the work; if the tunneling work is not finished, returning to S1 to continue the execution until the tunneling work is finished;
the axial direction of the detection hole positioned above the tunneling direction of the tunnel and the tunneling direction of the tunnel form a first preset angle,
the axial direction of the detection hole positioned below the tunneling direction and the tunneling direction form a second preset angle,
the value ranges of the first preset angle and the second preset angle are both 10-30 degrees;
the length of the detection hole is 4-6 meters;
the diameter of the detection hole is 40-100 mm.
2. A mining haulage roadway construction method as claimed in claim 1, wherein the slurry is concrete slurry.
3. The mining haulage roadway construction method of any one of claims 1 to 2, wherein the predetermined distance is 4 to 6 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110970976.1A CN113669070B (en) | 2021-08-23 | 2021-08-23 | Mining haulage roadway construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110970976.1A CN113669070B (en) | 2021-08-23 | 2021-08-23 | Mining haulage roadway construction method |
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| Publication Number | Publication Date |
|---|---|
| CN113669070A CN113669070A (en) | 2021-11-19 |
| CN113669070B true CN113669070B (en) | 2022-05-06 |
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| CN202110970976.1A Active CN113669070B (en) | 2021-08-23 | 2021-08-23 | Mining haulage roadway construction method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5267814A (en) * | 1990-11-07 | 1993-12-07 | Tokuichiro Yoshida | Mechanism and method for continuously constructing reinforced concrete tunnel |
| CN103032083A (en) * | 2012-12-21 | 2013-04-10 | 中南大学 | Reconstruction method for water-proof shell |
| CN103867229A (en) * | 2014-03-12 | 2014-06-18 | 河北煤炭科学研究院 | Coal mine large-mining-depth and next-group coal exploitation water control comprehensive treatment method |
| CN106886050A (en) * | 2017-03-10 | 2017-06-23 | 桂林理工大学 | A kind of Roadway Leading Prospecting device and method |
| CN106968676A (en) * | 2017-03-27 | 2017-07-21 | 山西潞安环保能源开发股份有限公司 | The method that cavity is passed through in tunnelling |
-
2021
- 2021-08-23 CN CN202110970976.1A patent/CN113669070B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5267814A (en) * | 1990-11-07 | 1993-12-07 | Tokuichiro Yoshida | Mechanism and method for continuously constructing reinforced concrete tunnel |
| CN103032083A (en) * | 2012-12-21 | 2013-04-10 | 中南大学 | Reconstruction method for water-proof shell |
| CN103867229A (en) * | 2014-03-12 | 2014-06-18 | 河北煤炭科学研究院 | Coal mine large-mining-depth and next-group coal exploitation water control comprehensive treatment method |
| CN106886050A (en) * | 2017-03-10 | 2017-06-23 | 桂林理工大学 | A kind of Roadway Leading Prospecting device and method |
| CN106968676A (en) * | 2017-03-27 | 2017-07-21 | 山西潞安环保能源开发股份有限公司 | The method that cavity is passed through in tunnelling |
Non-Patent Citations (1)
| Title |
|---|
| 喀斯特地貌区城市地下综合管廊施工技术研究;陈浩 等;《施工技术》;20180731;第47卷(第13期);第116-120页 * |
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| CN113669070A (en) | 2021-11-19 |
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