CN107060762A - A kind of method of the anti-wall caving of coal seam shallow foundation pits - Google Patents
A kind of method of the anti-wall caving of coal seam shallow foundation pits Download PDFInfo
- Publication number
- CN107060762A CN107060762A CN201710485023.XA CN201710485023A CN107060762A CN 107060762 A CN107060762 A CN 107060762A CN 201710485023 A CN201710485023 A CN 201710485023A CN 107060762 A CN107060762 A CN 107060762A
- Authority
- CN
- China
- Prior art keywords
- coal seam
- coal
- hole
- caving
- shallow foundation
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 239000003245 coal Substances 0.000 title claims abstract description 66
- 239000011901 water Substances 0.000 claims abstract description 47
- 238000005553 drilling Methods 0.000 claims abstract description 24
- 239000004744 fabrics Substances 0.000 claims abstract description 7
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 238000005755 formation reactions Methods 0.000 claims abstract description 5
- 238000005065 mining Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injections Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 2
- 241001074085 Scophthalmus aquosus Species 0.000 claims 1
- 239000010410 layers Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 238000010586 diagrams Methods 0.000 description 4
- 238000001802 infusion Methods 0.000 description 4
- 238000005516 engineering processes Methods 0.000 description 3
- 230000003068 static Effects 0.000 description 3
- 230000002708 enhancing Effects 0.000 description 2
- 280000560152 Construction Guarantee companies 0.000 description 1
- 230000001154 acute Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 methods Methods 0.000 description 1
- 239000011148 porous materials Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
Abstract
Description
Technical field
The invention belongs to coal mining field, it is more particularly related to a kind of anti-of coal seam shallow foundation pits The method of side.
Background technology
In process of coal mining, because the change of underground mine structure, working face wall caving or roof fall phenomenon, wall caving can be caused Refer to mine operation face, tunnel side wall to deform under action of underground, the phenomenon destroyed and come off；Roof fall be top plate it is out of control and from The phenomenon of row inbreak, no matter which kind of above-mentioned phenomenon occurs, and can all cause the generation of big mining accident, all coal mining accidents of China In, the casualties caused by the roof accident that wall caving, roof fall induce accounts for the 43% of all accidents in underground, especially " three It is soft " during seam mining, wall caving, roof fall phenomenon are particularly acute；In actual coal mining, due to " three is soft " seam mining The particularity of matter condition, if carrying out moving frame and supporting not in time, easily causes working face wall wall caving, induces roof fall accident, give Working surface production brings huge potential safety hazard, influence face propulsion speed and yield, and huge economy is caused to coal mining Loss；The characteristics of prior art is directed to " three is soft " Coal Quality and top, bottom plate is relatively soft, using coal-bed flooding technology come effectively Prevent and treat coal wall caving, use deep hole static pressure water filling wet operation mode more this coal-bed flooding technology, in the presence of constructed to hole it is difficult The defects such as degree is big, drilling design is difficult, borehole engineering amount big, pipe laying length, flood effectiveness difference.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of reduction " three is soft " coal-bed flooding difficulty of construction guarantee work The method of the anti-wall caving of coal seam shallow foundation pits of face safety in production.
To achieve these goals, the technical scheme taken of the present invention is：A kind of coal seam shallow foundation pits provided The method of anti-wall caving, comprises the following steps：
1) along working face, forward cloth drills, and aperture is located at working face middle and upper part, i.e. working face mining height at top 2/3, The spacing of adjacent drilling is 5~8m, and drill center line and horizontal angle are 15~20 °；
2) single hole extends along seam inclination, is drilled in hole using the long 1m thick stick twist drill rods that connect, drilling depth is 6~7m, is faced upward Angle is 15~20 °；
3) hole packer is put into hole, hole packer connects flood pattern close to aperture one end；
4) after pouring water into borehole, coal seam middle and upper part and coal body formation intensity in front of directly top junction working face are metastable Tack coat, water pump supplies water, 6MPa≤hydraulic pressure≤10MPa, and water injection time is 10~30 minutes.
A kind of method of anti-wall caving of coal seam shallow foundation pits disclosed by the invention, flood pattern includes one end and hole packer Connection, the pipeline that the other end is connected with water pump, pipeline is provided with pressure-reducing valve close to water pump one end, and check is provided with close to hole packer one end Water meter and pressure gauge are additionally provided with valve, pipeline.
The invention also discloses a kind of coal seam shallow foundation pits system, including coal bed drilling, in described coal bed drilling Portion is placed with hole packer, and hole packer is connected by pipeline with external water pump, and pipeline is provided with pressure-reducing valve close to water pump one end, close Hole packer one end is provided with non-return valve, pipeline and is additionally provided with water meter and pressure gauge.
A kind of coal seam shallow foundation pits system disclosed by the invention, drilling depth is 6~7m, and the elevation angle is 15~20 °.
A kind of coal seam shallow foundation pits system disclosed by the invention, water pump is dynamical pressure water infusion pump.
Using technical scheme, the wet operation mode of coal-bed flooding is relatively soft in ature of coal and top, bottom plate Working face, along working face, forward cloth drills, and drilling depth is 6~7m, and the elevation angle is 15~20 °, hole packer is put into hole, hole packer is leaned on Adjacent pores mouthful one end connection flood pattern, the water pump that flood pattern is used is dynamical pressure water infusion pump, is noted with the deep hole static pressure of prior art Water is compared, and not only reduces the quantities of drilling and pipe laying, while enhancing the caking property and shearing strength in coal seam, is reduced " three is soft " coal-bed flooding difficulty of construction；Effectively preventing working face of coal seam wall caving, it is ensured that the safety of " three is soft " working face of coal seam Production；" three is soft " coal seam is used after shallow foundation pits, the coal body easily in front of coal seam middle and upper part with directly top junction working face Form intensity metastable with certain thickness tack coat.
Below with reference to drawings and examples, the present invention is described in detail.
Brief description of the drawings
The content expressed by each width accompanying drawing of this specification and the mark in figure are briefly described below：
Fig. 1 is a kind of schematic diagram of the method for the anti-wall caving of coal seam shallow foundation pits of the invention；
The master that Fig. 2 drills for working face in a kind of method schematic diagram of anti-wall caving of coal seam shallow foundation pits shown in Fig. 1 View；
Fig. 3 is the side view of the working face drilling shown in Fig. 2；
Fig. 4 is a kind of design sketch of the method for anti-wall caving of coal seam shallow foundation pits shown in Fig. 1.
Marked in figure：1st, dynamical pressure water infusion pump；2nd, pressure-reducing valve；3rd, water meter；4th, pressure gauge；5th, non-return valve；6th, coal seam；7th, seal Hole device；8th, aperture；9th, top；10th, bottom plate；11 tack coats.
Embodiment
Below against accompanying drawing, by the description to embodiment, to the embodiment of the present invention such as involved each structure Mutual alignment and annexation, the effect of each several part and operation principle, manufacturing process between the shape of part, construction, each several part And operate with method etc., be described in further detail, with help those skilled in the art to the inventive concept of the present invention, Technical scheme has more complete, accurate and deep understanding.
Fig. 1 is a kind of schematic diagram of the method for the anti-wall caving of coal seam shallow foundation pits of the invention；Fig. 2 is one shown in Fig. 1 Plant the front view that working face drills in the method schematic diagram of the anti-wall caving of coal seam shallow foundation pits；Fig. 3 is the working face shown in Fig. 2 The side view of drilling, Fig. 4 is a kind of design sketch of the method for anti-wall caving of coal seam shallow foundation pits shown in Fig. 1；As schemed A kind of method of the anti-wall caving of coal seam shallow foundation pits of the invention shown, comprises the following steps：
1) along working face, forward cloth drills, and aperture 8 is located at working face middle and upper part, i.e. working face mining height away from the height of top 9 about At 2/3, the spacing of adjacent drilling is 5~8m, and drill center line and horizontal angle are 15~20 °；
2) single hole extends along seam inclination, is drilled in hole using the long 1m thick stick twist drill rods that connect, drilling depth is 6~7m, is faced upward Angle is 15~20 °；
3) hole packer 7 is put into hole, depth >=1m of drilling is inserted, hole packer 7 connects flood pattern close to aperture one end；
4) after pouring water into borehole, the middle and upper part of coal seam 6 and coal body formation intensity in front of directly top junction working face are relative stable Tack coat 11, water pump supply water, 6MPa≤hydraulic pressure≤10MPa, water injection time be 10~30 minutes.
Flood pattern is connected including one end with hole packer 7, the pipeline that the other end is connected with water pump, and pipeline is close to water pump one end Provided with pressure-reducing valve 2, it is provided with close to the one end of hole packer 7 on non-return valve 5, pipeline and is additionally provided with water meter 3 and pressure gauge 4；Water pump is dynamic pressure Water injecting pump 1.
Using technical scheme, the wet operation mode of the water filling of coal seam 6, ature of coal and top 9, bottom plate 10 compared with Soft working face, along working face, forward cloth drills, and drilling depth is 6~7m, and the elevation angle is 15~20 °, and hole packer 7 is put into hole, Hole packer 7 connects flood pattern close to aperture one end, and the water pump that flood pattern is used is dynamical pressure water infusion pump 1, with prior art Deep hole static pressure water filling is compared, and not only reduces the quantities of drilling and pipe laying, while enhancing the caking property in coal seam 6 and resisting Intensity is cut, " three is soft " coal-bed flooding difficulty of construction is reduced；The working face wall caving of effectively preventing coal seam 6, it is ensured that " three is soft " coal seam The safety in production of working face；" three is soft " coal seam is used after shallow foundation pits, easily in coal seam middle and upper part with directly pushing up junction work Square coal body formation intensity is metastable in face of work has certain thickness tack coat 11.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented not by aforesaid way Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or without changing Enter and the design of the present invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710485023.XA CN107060762A (en) | 2017-06-23 | 2017-06-23 | A kind of method of the anti-wall caving of coal seam shallow foundation pits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710485023.XA CN107060762A (en) | 2017-06-23 | 2017-06-23 | A kind of method of the anti-wall caving of coal seam shallow foundation pits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107060762A true CN107060762A (en) | 2017-08-18 |
Family
ID=59613346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710485023.XA CN107060762A (en) | 2017-06-23 | 2017-06-23 | A kind of method of the anti-wall caving of coal seam shallow foundation pits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107060762A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4226475A (en) * | 1978-04-19 | 1980-10-07 | Frosch Robert A | Underground mineral extraction |
| CN104514579A (en) * | 2014-12-23 | 2015-04-15 | 淮北矿业股份有限公司 | High pressure shallow hole water injector for fully mechanized coal mining face |
| CN105863717A (en) * | 2016-06-13 | 2016-08-17 | 淮南矿业(集团)有限责任公司 | Method for preventing rib spalling by injecting water to soft coal seam mining face |
-
2017
- 2017-06-23 CN CN201710485023.XA patent/CN107060762A/en not_active Application Discontinuation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4226475A (en) * | 1978-04-19 | 1980-10-07 | Frosch Robert A | Underground mineral extraction |
| CN104514579A (en) * | 2014-12-23 | 2015-04-15 | 淮北矿业股份有限公司 | High pressure shallow hole water injector for fully mechanized coal mining face |
| CN105863717A (en) * | 2016-06-13 | 2016-08-17 | 淮南矿业(集团)有限责任公司 | Method for preventing rib spalling by injecting water to soft coal seam mining face |
Non-Patent Citations (1)
| Title |
|---|
| 王云东: "《特厚极软煤层放顶煤工作面防片帮、漏顶技术的研究》", 《煤炭技术》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103953323B (en) | A kind of horizontal well produces the hydraulic fracturing process of seam net | |
| CA2083473C (en) | Method and apparatus for solution mining | |
| CN103233740B (en) | Top-cutting roadway coal-pillar-free mining method of close-range thin coal seam | |
| AU2014344670B2 (en) | Solid cementation backfill roadway type mining method for ultra-thick seam | |
| CN106285617B (en) | Gas water horizontal well completion method | |
| CN104453913B (en) | A kind of Shaft Stopes front pre-grouting method | |
| CN102031950B (en) | Hole-forming process method for comb gas extraction borehole in coal seam roof | |
| CN103953343B (en) | A kind of method coal seam tight roof being controlled to caving | |
| CN103306683B (en) | A kind of construction method of comprehensive precipitation in hole when excavating deep tunnel | |
| CN101929340B (en) | Coal mine underground flat inclined tunnel pipe shed pre-grouting advance support construction process | |
| CN102182499B (en) | Hydrofracturing-based method and equipment for diminishing dust and eliminating outburst of coal bed | |
| CN101408106B (en) | Small tube shed pre-grouting method | |
| CN106869933B (en) | A method of block is filled to stop adopting coal pillar width in conjunction with reduction super high seam | |
| CN103089275A (en) | Control method of surrounding rocks in water-rich very-broken surrounding rock tunnel collapse sections | |
| CN104100292A (en) | Regional forced gas extraction method for single low-permeability outburst thick coal seam | |
| JP2013079572A (en) | Method for construction of subterranean barriers | |
| CN102619552B (en) | Directional hydraulic pressing penetration, permeability increase and outburst elimination method of guide groove | |
| CN103821538B (en) | J-type horizontal assistant branched hole surface advance grouting paste-making method | |
| CN102587959B (en) | Method for draining coal seam gas | |
| CN103016047B (en) | Method of draining gas in gob through long drill hole in roof trend on fully mechanized caving face | |
| CN103775084B (en) | High inclination-angle, mining height workface equipment cross geological structure crushed zone construction technology | |
| CN102565859B (en) | Overburden water flowing fractured zone observation system and detection drilling method thereof | |
| CN101575983B (en) | Directional fracturing permeability improvement outburst elimination method in coal mine and device thereof. | |
| CN103742129B (en) | The method of weak seam measuring gas pressure of coal bed by drilling hole | |
| CN102134967A (en) | Construction method of consolidating horizontal directional drilling hole by grouting coal seam baseboard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |