CN110939479A - Rock cross-cut coal uncovering outburst eliminating system - Google Patents
Rock cross-cut coal uncovering outburst eliminating system Download PDFInfo
- Publication number
- CN110939479A CN110939479A CN201911345814.8A CN201911345814A CN110939479A CN 110939479 A CN110939479 A CN 110939479A CN 201911345814 A CN201911345814 A CN 201911345814A CN 110939479 A CN110939479 A CN 110939479A
- Authority
- CN
- China
- Prior art keywords
- roadway
- outburst
- outburst elimination
- elimination
- coal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 145
- 239000011435 rock Substances 0.000 title claims abstract description 30
- 230000008030 elimination Effects 0.000 claims abstract description 179
- 238000003379 elimination reaction Methods 0.000 claims abstract description 179
- 238000010276 construction Methods 0.000 description 9
- 238000005553 drilling Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- 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
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
-
- 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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a rock cross-cut coal uncovering outburst elimination system, which relates to the field of coal mine gas control and comprises a coal uncovering roadway, an outburst elimination drill hole, an air inlet roadway and an air return roadway; the rock stratum above the top surface of the inclined coal seam is a coal seam top plate, the rock stratum below the bottom surface of the inclined coal seam is a coal seam bottom plate, and the coal uncovering roadway penetrates through the inclined coal seam from the coal seam top plate and extends into the coal seam bottom plate; the outburst elimination roadway is arranged in the coal seam floor; the outburst elimination drill holes are communicated between the outburst elimination roadway and the inclined coal seam, one end of each outburst elimination drill hole penetrates through the side wall of one side of the outburst elimination roadway, and the other end of each outburst elimination drill hole penetrates through the inclined coal seam; the air inlet roadway and the air return roadway are respectively communicated with the outburst elimination roadway. The invention has the advantages that: the gas in the coal uncovering roadway can be prevented from exceeding the limit and the coal uncovering progress is accelerated.
Description
Technical Field
The invention relates to the field of coal mine gas control, in particular to a rock cross-cut coal uncovering outburst eliminating system.
Background
Rock cross-cut coal uncovering is a process of uncovering a coal bed when the coal bed is encountered in the tunneling process. For a strong outburst coal seam with high gas pressure and high gas outburst risk, gas needs to be discharged firstly in the cross-cut coal uncovering process. The existing method for discharging gas during rock cross-cut coal uncovering is to construct outburst elimination drill holes in a coal uncovering roadway, so that tunneling construction of the coal uncovering roadway and construction of the outburst elimination drill holes are influenced mutually, and the coal uncovering progress is slow; and because the gas pressure of the strong outburst coal seam is higher, the outburst elimination drill holes have strong spray holes, and the gas in the coal uncovering roadway is easily over-limited.
Disclosure of Invention
The invention aims to solve the technical problem of providing a rock cross-cut coal uncovering outburst elimination system which can avoid gas overrun in a coal uncovering roadway and accelerate the coal uncovering progress.
The invention solves the technical problems through the following technical means: the rock cross-cut coal uncovering outburst elimination system comprises a coal uncovering roadway (1), an outburst elimination roadway (2), outburst elimination drill holes (3), an air inlet roadway (4) and an air return roadway (5); a rock stratum above the top surface of the inclined coal seam (6) is a coal seam roof (7), a rock stratum below the bottom surface of the inclined coal seam (6) is a coal seam floor (8), and the coal uncovering roadway (1) penetrates through the inclined coal seam (6) from the coal seam roof (7) and extends into the coal seam floor (8); the outburst elimination roadway (2) is arranged in the coal seam floor (8); a plurality of outburst elimination drill holes (3) are communicated between the outburst elimination roadway (2) and the inclined coal seam (6), one end of each outburst elimination drill hole (3) penetrates through the side wall of one side of the outburst elimination roadway (2), and the other end of each outburst elimination drill hole penetrates through the inclined coal seam (6); the air inlet roadway (4) and the air return roadway (5) are respectively communicated with the outburst elimination roadway (2). The outburst elimination is carried out by arranging an outburst elimination roadway, an air inlet roadway and an air return roadway, so that the gas in the coal uncovering roadway is prevented from exceeding the limit; the outburst elimination drill holes are constructed in the outburst elimination roadway, so that the contradiction of mutual influence of the coal uncovering roadway and the outburst elimination drill hole construction is effectively solved, and the coal uncovering progress is accelerated; a plurality of drilling machines can be arranged in the outburst elimination roadway for simultaneous construction, and the construction operation efficiency is high.
As an optimized technical scheme, the outburst elimination roadway (2) is a communicated closed-loop structure consisting of a plurality of roadways. The outburst elimination roadway, the air inlet roadway and the air return roadway form a full negative pressure ventilation system, and the problem of gas overrun caused by drilling of spray holes is solved.
As an optimized technical scheme, the outburst elimination roadway (2) comprises an upper outburst elimination roadway (21), a lower outburst elimination roadway (22), a first connecting roadway (23) and a second connecting roadway (24); the upper outburst removing roadway (21) and the lower outburst removing roadway (22) are arranged at intervals up and down, and the axes of the upper outburst removing roadway (21) and the lower outburst removing roadway (22) are vertical or nearly vertical to the axis of the coal uncovering roadway (1); the first connecting roadway (23) is connected between one end of the upper outburst elimination roadway (21) and one end of the lower outburst elimination roadway (22), the second connecting roadway (24) is connected between the other end of the upper outburst elimination roadway (21) and the other end of the lower outburst elimination roadway (22), and the outburst elimination roadway (2) is a quadrilateral communicated closed-loop structure consisting of the upper outburst elimination roadway (21), the lower outburst elimination roadway (22), the first connecting roadway (23) and the second connecting roadway (24); the protrusion eliminating drill holes (3) comprise a first protrusion eliminating drill hole (31) and a second protrusion eliminating drill hole (32); a plurality of first outburst elimination drill holes (31) are communicated between the upper outburst elimination roadway (21) and the inclined coal seam (6), one end of each first outburst elimination drill hole (31) penetrates through the side wall of one side of the upper outburst elimination roadway (21), and the other end of each first outburst elimination drill hole penetrates through the inclined coal seam (6); a plurality of second outburst elimination drill holes (32) are communicated between the lower outburst elimination roadway (22) and the inclined coal seam (6), one end of each second outburst elimination drill hole (32) penetrates through the side wall of one side of the lower outburst elimination roadway (22), and the other end of each second outburst elimination drill hole penetrates through the inclined coal seam (6); the air inlet roadway (4) and the air return roadway (5) are respectively communicated with two sides of the upper outburst roadway (21). The construction is convenient, and the outburst elimination drilling holes are conveniently and reasonably arranged in the outburst elimination roadway.
As an optimized technical scheme, the horizontal distances L from the two ends of the upper outburst removing roadway (21) and the two ends of the lower outburst removing roadway (22) to the axis of the coal uncovering roadway (1) are both larger than or equal to 30 m. The extended distance of the upper outburst elimination roadway and the lower outburst elimination roadway is longer, so that the upper outburst elimination roadway and the lower outburst elimination roadway can be connected with an inclined coal seam with a larger range through the first outburst elimination drill hole and the second outburst elimination drill hole, and the controllable outburst elimination area range is wider.
As an optimized technical scheme, the upper outburst roadway (21) and the lower outburst elimination roadway (22) are both located below the coal uncovering roadway (1), and the vertical distances between the tops of the upper outburst roadway (21) and the lower outburst elimination roadway (22) and the bottom of the coal uncovering roadway (1) are both larger than or equal to 15 m.
As an optimized technical scheme, the upper outburst roadway (21) is positioned above the coal uncovering roadway (1), and the vertical distance between the bottom of the upper outburst roadway (21) and the top of the coal uncovering roadway (1) is greater than or equal to 15 m; the lower outburst elimination roadway (22) is located below the coal uncovering roadway (1), and the vertical distance between the top of the lower outburst elimination roadway (22) and the bottom of the coal uncovering roadway (1) is larger than or equal to 15 m.
As an optimized technical scheme, the normal distances between the axial lines of all the roadways in the outburst elimination roadway (2) and the bottom surface of the inclined coal seam (6) are larger than or equal to 10 m.
As an optimized technical scheme, the axial lines of the parts, located in the coal seam floor (8), of the outburst elimination drill holes (3) are all straight lines extending from the outburst elimination roadway (2) to the inclined coal seam (6) in an upward inclined mode.
As an optimized technical scheme, included angles between the axes of the parts, located in the coal seam floor (8), of the outburst elimination drill holes (3) and the horizontal plane are all larger than or equal to 12 degrees.
As an optimized technical scheme, the axial lines of the parts, located on the side wall of the outburst elimination roadway (2), of the outburst elimination drill holes (3) are perpendicular to the side wall of the outburst elimination roadway (2) where the outburst elimination drill holes are located. The outburst elimination drill hole has high hole forming quality and good outburst elimination effect.
The invention has the advantages that:
1. the outburst elimination is carried out by arranging the outburst elimination roadway, the air inlet roadway and the air return roadway, so that the gas in the coal uncovering roadway is prevented from exceeding the limit.
2. The outburst elimination drill holes are constructed in the outburst elimination roadway, so that the contradiction of mutual influence of the coal uncovering roadway and the outburst elimination drill hole construction is effectively solved, and the coal uncovering progress is accelerated; a plurality of drilling machines can be arranged in the outburst elimination roadway for simultaneous construction, and the construction operation efficiency is high.
3. The outburst elimination roadway, the air inlet roadway and the air return roadway form a full negative pressure ventilation system, and the problem of gas overrun caused by drilling of spray holes is solved.
4. The controllable outburst elimination area is wider in range.
5. The outburst elimination drill hole has high hole forming quality and good outburst elimination effect.
Drawings
Fig. 1 is a schematic top view of a coal uncovering roadway, a outburst elimination roadway, an air intake roadway and an air return roadway in a rock cross-cut coal uncovering outburst elimination system according to an embodiment of the invention.
FIG. 2 is a schematic cross-sectional view of a rock cross-cut coal outburst elimination system according to an embodiment of the invention.
Fig. 3 is a schematic top view of a coal uncovering roadway, a outburst elimination roadway, an air intake roadway and an air return roadway in the rock cross-cut coal uncovering and outburst elimination system according to the embodiment of the invention.
FIG. 4 is a schematic cross-sectional view of a cross-cut coal outburst elimination system according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1 and 2, the rock cross-cut coal uncovering outburst elimination system comprises a coal uncovering roadway 1, an outburst elimination roadway 2, an outburst elimination drill hole 3, an air inlet roadway 4 and an air return roadway 5.
The rock stratum above the top surface of the inclined coal seam 6 is a coal seam roof 7, the rock stratum below the bottom surface of the inclined coal seam 6 is a coal seam floor 8, the axis of the coal uncovering roadway 1 is in the horizontal direction, and the coal uncovering roadway 1 penetrates through the inclined coal seam 6 from the coal seam roof 7 and extends into the coal seam floor 8.
The outburst elimination roadway 2 is arranged in the coal seam floor 8, and the outburst elimination roadway 2 comprises an upper outburst elimination roadway 21, a lower outburst elimination roadway 22, a first connecting roadway 23 and a second connecting roadway 24; the upper outburst elimination roadway 21 and the lower outburst elimination roadway 22 are arranged at intervals up and down, and the axes of the upper outburst elimination roadway 21 and the lower outburst elimination roadway 22 are both vertical to or nearly vertical to the axis of the coal uncovering roadway 1 along the horizontal direction; the first connecting roadway 23 is connected between one end of the upper outburst elimination roadway 21 and one end of the lower outburst elimination roadway 22, and the second connecting roadway 24 is connected between the other end of the upper outburst elimination roadway 21 and the other end of the lower outburst elimination roadway 22; the outburst elimination roadway 2 is a quadrilateral communicated closed-loop structure consisting of an upper outburst elimination roadway 21, a lower outburst elimination roadway 22, a first connecting roadway 23 and a second connecting roadway 24.
The horizontal distances L from the two ends of the upper outburst roadway 21 and the two ends of the lower outburst roadway 22 to the axis of the coal uncovering roadway 1 are both larger than or equal to 30 m.
The upper outburst removing roadway 21 and the lower outburst removing roadway 22 are both positioned below the coal uncovering roadway 1, and the vertical distances between the tops of the upper outburst removing roadway 21 and the lower outburst removing roadway 22 and the bottom of the coal uncovering roadway 1 are both larger than or equal to 15 m.
The normal distances between the axial lines of the upper outburst removing roadway 21, the lower outburst removing roadway 22, the first connecting roadway 23 and the second connecting roadway 24 and the bottom surface of the inclined coal seam 6 are all larger than or equal to 10 m.
The outburst elimination drill hole 3 comprises a first outburst elimination drill hole 31 and a second outburst elimination drill hole 32; the plurality of first outburst elimination drill holes 31 are communicated between the upper outburst elimination roadway 21 and the inclined coal seam 6, one end of each first outburst elimination drill hole 31 penetrates through the side wall of one side of the upper outburst elimination roadway 21, and the other end of each first outburst elimination drill hole 31 penetrates through the inclined coal seam 6; the second outburst elimination drill holes 32 are communicated between the lower outburst elimination roadway 22 and the inclined coal seam 6, one end of each second outburst elimination drill hole 32 penetrates through one side wall of the lower outburst elimination roadway 22, and the other end of each second outburst elimination drill hole 32 penetrates through the inclined coal seam 6.
The axes of the parts of the first outburst elimination drill holes 31 in the coal seam floor 8 are all straight lines extending from the upper outburst elimination roadway 21 to the inclined coal seam 6 in an upward inclined mode, and the axes of the parts of the second outburst elimination drill holes 32 in the coal seam floor 8 are all straight lines extending from the lower outburst elimination roadway 22 to the inclined coal seam 6 in an upward inclined mode, so that outburst elimination drill holes extending from the outburst elimination roadway 2 to the inclined coal seam 6 in a downward inclined mode are avoided being constructed; the included angles between the axes of the parts of the first outburst elimination drill holes 31 and the second outburst elimination drill holes 32, which are positioned in the coal seam floor 8, and the horizontal plane are both greater than or equal to 12 degrees, the included angles between the axes of the parts of the first outburst elimination drill holes 31, which are positioned at the top of the roadway side of the upper outburst elimination roadway 21, and the horizontal plane are both 60 degrees, and the included angles between the axes of the parts of the second outburst elimination drill holes 32, which are positioned at the top of the roadway side of the lower outburst elimination roadway 22, and the horizontal plane are.
The axial lines of the parts of the first protrusion eliminating drill holes 31, which are positioned on the side wall of the upper protrusion eliminating roadway 21, are vertical to the side wall of the upper protrusion eliminating roadway 21, and the axial lines of the parts of the second protrusion eliminating drill holes 32, which are positioned on the side wall of the lower protrusion eliminating roadway 22, are vertical to the side wall of the lower protrusion eliminating roadway 22.
The air inlet roadway 4 and the air return roadway 5 are respectively communicated with two sides of the upper outburst elimination roadway 21 and are used for extracting gas in the outburst elimination roadway 2.
Example two
As shown in fig. 3 and 4, the present embodiment is different from the first embodiment in that:
the upper outburst elimination roadway 21 is positioned above the coal uncovering roadway 1, and the vertical distance between the bottom of the upper outburst elimination roadway 21 and the top of the coal uncovering roadway 1 is greater than or equal to 15 m; the lower outburst elimination roadway 22 is positioned below the coal uncovering roadway 1, and the vertical distance between the top of the lower outburst elimination roadway 22 and the bottom of the coal uncovering roadway 1 is larger than or equal to 15 m.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a rock cross-cut coal uncovering system that disappears suddenly which characterized in that: comprises a coal uncovering roadway (1), an outburst elimination roadway (2), an outburst elimination drill hole (3), an air inlet roadway (4) and an air return roadway (5); a rock stratum above the top surface of the inclined coal seam (6) is a coal seam roof (7), a rock stratum below the bottom surface of the inclined coal seam (6) is a coal seam floor (8), and the coal uncovering roadway (1) penetrates through the inclined coal seam (6) from the coal seam roof (7) and extends into the coal seam floor (8); the outburst elimination roadway (2) is arranged in the coal seam floor (8); a plurality of outburst elimination drill holes (3) are communicated between the outburst elimination roadway (2) and the inclined coal seam (6), one end of each outburst elimination drill hole (3) penetrates through the side wall of one side of the outburst elimination roadway (2), and the other end of each outburst elimination drill hole penetrates through the inclined coal seam (6); the air inlet roadway (4) and the air return roadway (5) are respectively communicated with the outburst elimination roadway (2).
2. The rock cross-cut coal uncovering and outburst eliminating system of claim 1, wherein: the outburst elimination roadway (2) is a communicated closed-loop structure consisting of a plurality of roadways.
3. The rock cross-cut coal uncovering and outburst eliminating system of claim 1, wherein: the outburst elimination roadway (2) comprises an upper outburst elimination roadway (21), a lower outburst elimination roadway (22), a first connecting roadway (23) and a second connecting roadway (24); the upper outburst removing roadway (21) and the lower outburst removing roadway (22) are arranged at intervals up and down, and the axes of the upper outburst removing roadway (21) and the lower outburst removing roadway (22) are vertical or nearly vertical to the axis of the coal uncovering roadway (1); the first connecting roadway (23) is connected between one end of the upper outburst elimination roadway (21) and one end of the lower outburst elimination roadway (22), the second connecting roadway (24) is connected between the other end of the upper outburst elimination roadway (21) and the other end of the lower outburst elimination roadway (22), and the outburst elimination roadway (2) is a quadrilateral communicated closed-loop structure consisting of the upper outburst elimination roadway (21), the lower outburst elimination roadway (22), the first connecting roadway (23) and the second connecting roadway (24); the protrusion eliminating drill holes (3) comprise a first protrusion eliminating drill hole (31) and a second protrusion eliminating drill hole (32); a plurality of first outburst elimination drill holes (31) are communicated between the upper outburst elimination roadway (21) and the inclined coal seam (6), one end of each first outburst elimination drill hole (31) penetrates through the side wall of one side of the upper outburst elimination roadway (21), and the other end of each first outburst elimination drill hole penetrates through the inclined coal seam (6); a plurality of second outburst elimination drill holes (32) are communicated between the lower outburst elimination roadway (22) and the inclined coal seam (6), one end of each second outburst elimination drill hole (32) penetrates through the side wall of one side of the lower outburst elimination roadway (22), and the other end of each second outburst elimination drill hole penetrates through the inclined coal seam (6); the air inlet roadway (4) and the air return roadway (5) are respectively communicated with two sides of the upper outburst roadway (21).
4. The rock cross-cut coal uncovering and outburst eliminating system of claim 3, wherein: and the horizontal distances L from the two ends of the upper outburst removing roadway (21) and the two ends of the lower outburst removing roadway (22) to the axis of the coal uncovering roadway (1) are both larger than or equal to 30 m.
5. The rock cross-cut coal uncovering and outburst eliminating system of claim 3, wherein: the upper outburst removing roadway (21) and the lower outburst removing roadway (22) are both located below the coal uncovering roadway (1), and the vertical distances between the tops of the upper outburst removing roadway (21) and the lower outburst removing roadway (22) and the bottom of the coal uncovering roadway (1) are larger than or equal to 15 m.
6. The rock cross-cut coal uncovering and outburst eliminating system of claim 3, wherein: the upper outburst roadway (21) is positioned above the coal uncovering roadway (1), and the vertical distance between the bottom of the upper outburst roadway (21) and the top of the coal uncovering roadway (1) is greater than or equal to 15 m; the lower outburst elimination roadway (22) is located below the coal uncovering roadway (1), and the vertical distance between the top of the lower outburst elimination roadway (22) and the bottom of the coal uncovering roadway (1) is larger than or equal to 15 m.
7. The rock cross-cut coal breaking system of any one of claims 1 to 6, wherein: and the normal distances between the axial lines of all the roadways in the outburst elimination roadway (2) and the bottom surface of the inclined coal seam (6) are both larger than or equal to 10 m.
8. The rock cross-cut coal breaking system of any one of claims 1 to 6, wherein: the axial line of the part of each outburst elimination drill hole (3) in the coal seam floor (8) is a straight line which extends from the outburst elimination roadway (2) to the inclined coal seam (6) in an upward inclined mode.
9. The rock cross-cut coal breaking system of any one of claims 1 to 6, wherein: the included angles between the axes of the parts of the outburst elimination drill holes (3) in the coal seam floor (8) and the horizontal plane are all larger than or equal to 12 degrees.
10. The rock cross-cut coal breaking system of any one of claims 1 to 6, wherein: the axial lines of the parts of the outburst elimination drill holes (3) on the side wall of the outburst elimination roadway (2) are all vertical to the side wall of the outburst elimination roadway (2) at the positions of the outburst elimination drill holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911345814.8A CN110939479A (en) | 2019-12-24 | 2019-12-24 | Rock cross-cut coal uncovering outburst eliminating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911345814.8A CN110939479A (en) | 2019-12-24 | 2019-12-24 | Rock cross-cut coal uncovering outburst eliminating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110939479A true CN110939479A (en) | 2020-03-31 |
Family
ID=69912933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911345814.8A Pending CN110939479A (en) | 2019-12-24 | 2019-12-24 | Rock cross-cut coal uncovering outburst eliminating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110939479A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196610A (en) * | 2020-09-23 | 2021-01-08 | 贵州大学 | Water drilling mining structure for eliminating gas outburst of inclined coal seam and mining method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2510461C1 (en) * | 2012-12-06 | 2014-03-27 | Федеральное государственное бюджетное учреждение науки Институт угля Сибирского отделения Российской академии наук (ИУ СО РАН) | Complex control method of gas emission in extraction sections at development of thick and superimposed highly gas-bearing gently sloping coal beds |
| CN105927269A (en) * | 2016-06-28 | 2016-09-07 | 杨国和 | Gas control method of outburst coal seam |
| CN108894813A (en) * | 2018-06-20 | 2018-11-27 | 北京九尊能源技术股份有限公司 | The gas outburst elimination method that downhole drill, ground fracturing and underground extraction combine |
| CN211397647U (en) * | 2019-12-24 | 2020-09-01 | 淮南矿业(集团)有限责任公司 | Rock cross-cut coal uncovering outburst eliminating system |
-
2019
- 2019-12-24 CN CN201911345814.8A patent/CN110939479A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2510461C1 (en) * | 2012-12-06 | 2014-03-27 | Федеральное государственное бюджетное учреждение науки Институт угля Сибирского отделения Российской академии наук (ИУ СО РАН) | Complex control method of gas emission in extraction sections at development of thick and superimposed highly gas-bearing gently sloping coal beds |
| CN105927269A (en) * | 2016-06-28 | 2016-09-07 | 杨国和 | Gas control method of outburst coal seam |
| CN108894813A (en) * | 2018-06-20 | 2018-11-27 | 北京九尊能源技术股份有限公司 | The gas outburst elimination method that downhole drill, ground fracturing and underground extraction combine |
| CN211397647U (en) * | 2019-12-24 | 2020-09-01 | 淮南矿业(集团)有限责任公司 | Rock cross-cut coal uncovering outburst eliminating system |
Non-Patent Citations (1)
| Title |
|---|
| 马益民;: "深部石门揭穿高瓦斯强突出煤层的试验研究", 中国矿山工程, no. 02, 20 April 2013 (2013-04-20), pages 2 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196610A (en) * | 2020-09-23 | 2021-01-08 | 贵州大学 | Water drilling mining structure for eliminating gas outburst of inclined coal seam and mining method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101915101B (en) | Method of mining coal from heavy pitch thick coal seam | |
| CN104929642B (en) | Top coal caving quantity regional control method for variable angle fully mechanized caving face of steeply dipping seam | |
| CN101025086B (en) | Explosion coal-falling, coal-loading, coal-conveying and anchor-rod supporting mechanism integration operation method and apparatus | |
| CN102383794B (en) | Cross side dumping arrangement coordinated mode of rear conveyer of fully mechanized working face and support structure | |
| CN102251789A (en) | Integrated self-shift hydraulic support for placing top coal in steeply inclined roadway | |
| CN205975275U (en) | Prevent pavior brick of ponding | |
| CN106522953B (en) | A kind of steep-inclined thick coal seam moves towards longwell longwall top coal caving dynamic segmentation taking and placing technique | |
| CN101498216A (en) | Thick coal seam large height workface step coal wall coal mining method | |
| CN211397647U (en) | Rock cross-cut coal uncovering outburst eliminating system | |
| US11746654B2 (en) | Kind of no-pillar and gob-side entry retaining mining and construction method without the mining area division | |
| CN110939479A (en) | Rock cross-cut coal uncovering outburst eliminating system | |
| KR20140055477A (en) | Proximity tunnel construction method and system using free surface | |
| CN104975857B (en) | Full well work area section non-pillar goaf-side-drift-free coal mining method | |
| CN105240012A (en) | F-type section coal-mining method allowing commingled mining of coal pillars | |
| CN110578523A (en) | Method and system for mining top coal of medium-thickness coal seam with extra-large dip angle | |
| CN103821455B (en) | A kind of shaft excavation machine drill bit structure correcting pilot shaft deflection | |
| CN105649627B (en) | A kind of single girdle coal-mining method of high-dipping | |
| CN205204019U (en) | Cable duct reaches scraper conveyor including this cable duct | |
| CN105370307B (en) | Coal working face crosses freeboard section support process | |
| CN208534488U (en) | A kind of novel anchor driving machine | |
| CN208456613U (en) | A kind of Mechanized roadway layout structure | |
| CN204001190U (en) | Building housing box column transformational structure | |
| CN203488175U (en) | Dust isolating device for rotary wind curtain of coal mining machine on fully mechanized coal mining face | |
| US4483238A (en) | Dust control in longwall mining | |
| CN104088642A (en) | Super-short-wall coal mining method |
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 |