CN102392681A - Scour protection arrangement method of gateway of adjacent hollow area at thick coal seam - Google Patents
Scour protection arrangement method of gateway of adjacent hollow area at thick coal seam Download PDFInfo
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- CN102392681A CN102392681A CN2011103109267A CN201110310926A CN102392681A CN 102392681 A CN102392681 A CN 102392681A CN 2011103109267 A CN2011103109267 A CN 2011103109267A CN 201110310926 A CN201110310926 A CN 201110310926A CN 102392681 A CN102392681 A CN 102392681A
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Abstract
The invention relates to a scour protection arrangement method of a gateway of an adjacent hollow area at a thick coal seam, and the method comprises the following steps: forming a gob of an upper segment for top coal recovered on the working face of the upper segment by using a total caving method; arranging a gateway of a replacement segment in bottom coal adjacent to the part below the gob of the upper segment, wherein the gateway of the replacement segment and an extraction drift at the inside of the upper segment are staggered in parallel and are spaced a distance; arranging a non-adjacent hollow area gateway of the replacement segment, which is parallel to the extraction drift at the inside of the upper segment, at the other side of the working face of the replacement segment so that the working face of the replacement segment is obliquely arranged; and then carrying out actual mining on the working face of the replacement segment. Along with the actual mining on the working face of the replacement segment, mining disturbance causes the secondary key stratum of overburden not completely stable above the gob of the upper segment to be bent and damaged even fractured, thereby forming an external seismic focus capable of transmitting energy to a mining space in the form of shock waves; and the shock weaves are subjected to strong attenuation of loosen and broken structures to achieve the purpose of controlling impact on mine pressure. The arrangement method is simple and practical and has a good effect.
Description
Technical field
The present invention relates to a kind of erosion control method for arranging of stope drift active workings, especially a kind of high seam with impulsion pressure disaster work plane that is applicable to faces the erosion control method for arranging of dead zone stope drift active workings.
Background technology
At present when high seam adopts separate zone production; The layout that the section stope drift active workings are taken in same layering adopts the arrangement of reserved coal pillar usually, after the back production of upper curtate finishes, takes over section and faces side coal column district, dead zone will to form stress concentrated; Effect is carried in the ore deposit vibrations that broken to form by overlying rock; Can cause the generation of coal column type impulsion pressure disaster thus, damage tunnel, damage equipment, cause casualties, bring potential safety hazard to production.Therefore to facing the research that dead zone stope drift active workings arrangement carries out, propose the erosion control arrangement, help effective control of this type of work plane impulsion pressure.
Summary of the invention
Technical problem: the objective of the invention is to overcome the weak point of existing arrangement, the erosion control method for arranging that a kind of method for arranging is simple, high seam can the damping erosion control faces the dead zone stope drift active workings is provided.
Technical scheme: high seam of the present invention faces the erosion control method for arranging of dead zone stope drift active workings; During high seam layering longwall top coal caving; Coal adopts whole caving methods to form the upper curtate goaf on the top of upper curtate working face extraction; Arrange one in the ground coal below closing on the upper curtate goaf then and take over the section stope drift active workings, take over section stope drift active workings and parallel staggered being spaced a distance of the inboard extraction drift of upper curtate, arrange parallel with the upper curtate inboard extraction drift non-dead zone stope drift active workings that face of section of taking at the opposite side of taking over the section work plane; Make and take over the section work plane and be and be in tilted layout, take over the actual mining of section work plane afterwards.
It is said that to take over the inboard extraction drift parallel distance of section stope drift active workings and upper curtate be 12 ~ 18m; It is said that to take over the staggered distance of the inboard extraction drift of section stope drift active workings and upper curtate be 1 ~ 2m.
Beneficial effect: the present invention is applicable to the mine that the stope drift active workings impulsion pressure disaster of closing on the goaf takes place frequently.When the erosion control that adopts high seam to face the dead zone stope drift active workings is arranged; Close on the goaf stope drift active workings and be staggeredly arranged in parallel and accomplish below the upper curtate goaf of back production taking over section; Make and take over section and face the dead zone stope drift active workings avoid the shear failure zone that bearing stress forms in ground coal, reduce static load; Utilize the loose crushing surrounding rock structure that the overdamp effect of outside focus shock wave is weakened ore deposit vibrations year disturbance simultaneously; Along with the back production of taking over the section work plane; The exploitation disturbance causes inferior key stratum bending failure of the overlying strata of not completely stable upper curtate above goaf even fracture; Form outside focus, to the digging space with shock wave form Propagation of Energy, during through the upper curtate goaf; Shock wave suffers the overdamp effect of loose crushing structure, weakens outside focus to facing the dynamic load disturbance of dead zone stope drift active workings; Thereby a little less than making these stope drift active workings receive the Static Load overlaying influence, effectively protect this to face the dead zone stope drift active workings, play the purpose of control impulsion pressure.Its method for arranging is simple, and practicality is effective, has practicality widely.
Description of drawings
Fig. 1 is a plane of arrangement sketch map of the present invention.
Fig. 2 is a layout I-I generalized section of the present invention.
Among the figure: the inboard extraction drift of 1-upper curtate, 2-takes over section and faces the dead zone stope drift active workings, and 3-takes over the section work plane, 4-upper curtate goaf, the 5-ground coal, 6-top coal, the inferior key stratum of 7-overlying strata, the outside focus of 8-, 9-takes over the non-dead zone stope drift active workings that face of section.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are done further to describe:
High seam of the present invention faces the erosion control method for arranging of dead zone stope drift active workings; When high seam layering longwall top coal caving; Coal 6 adopts whole caving methods to form upper curtate goaf 4 on the top of upper curtate working face extraction; Arrange one in the ground coal below closing on upper curtate goaf 45 then and take over section stope drift active workings 2; Take over section stope drift active workings 2 and inboard extraction drift 1 parallel staggered being spaced a distance of upper curtate, taking over section stope drift active workings 2 is 12 ~ 18m with inboard extraction drift 1 parallel distance of upper curtate, and taking over section stope drift active workings 2 is 1 ~ 2m with the inboard extraction drift 1 staggered distance of upper curtate.Arrange parallel with the upper curtate inboard extraction drift 1 non-dead zone stope drift active workings 9 that face of section of taking at the opposite side of taking over section work plane 3, make and take over section work plane 3 and be and be in tilted layout, take over the actual mining of section work plane 3 afterwards.Make like this and take over section and face dead zone stope drift active workings 2 avoid the shear failure zone that bearing stress forms in ground coal 5, reduce static load; Along with the back production of taking over section work plane 3; The exploitation disturbance causes inferior key stratum 7 bending failures of the overlying strata of 4 tops, not completely stable upper curtate goaf even fracture; Form outside focus 8, to the digging space with shock wave form Propagation of Energy, during through upper curtate goaf 4; Shock wave suffers the overdamp effect of loose crushing structure, weakens outside focus to facing the dynamic load disturbance of dead zone stope drift active workings; Thereby a little less than making these stope drift active workings receive the Static Load overlaying influence, play the purpose of control impulsion pressure.
Claims (3)
1. a high seam faces the erosion control method for arranging of dead zone stope drift active workings; It is characterized in that: during high seam layering longwall top coal caving; Coal (6) adopts whole caving methods to form upper curtate goaf (4) on the top of upper curtate working face extraction; In the ground coal (5) that closes on below, upper curtate goaf (4), arrange one then and take over section stope drift active workings (2); Take over parallel staggered being spaced a distance of section stope drift active workings (2) with the inboard extraction drift of upper curtate (1); Arrange parallel with upper curtate inboard extraction drift (1) the non-dead zone stope drift active workings (9) that face of section of taking at the opposite side of taking over section work plane (3), make and take over section work plane (3) and be and be in tilted layout, take over the actual mining of section work plane (3) afterwards.
2. high seam according to claim 1 faces dead zone stope drift active workings erosion control method for arranging, it is characterized in that: the said section stope drift active workings (2) of taking over are 12 ~ 18m with inboard extraction drift (1) parallel distance of upper curtate.
3. high seam according to claim 1 faces dead zone stope drift active workings erosion control method for arranging, it is characterized in that: the said section stope drift active workings (2) of taking over are 1 ~ 2m with the staggered distance of the inboard extraction drift of upper curtate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103109267A CN102392681A (en) | 2011-10-14 | 2011-10-14 | Scour protection arrangement method of gateway of adjacent hollow area at thick coal seam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103109267A CN102392681A (en) | 2011-10-14 | 2011-10-14 | Scour protection arrangement method of gateway of adjacent hollow area at thick coal seam |
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| CN102392681A true CN102392681A (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103109267A Pending CN102392681A (en) | 2011-10-14 | 2011-10-14 | Scour protection arrangement method of gateway of adjacent hollow area at thick coal seam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628914A (en) * | 2013-11-13 | 2014-03-12 | 陕西煤业化工技术研究院有限责任公司 | Low-permeability thick-layer bedrock aquifer exploring and draining method for low-angle coal seam slicing mining |
| CN109441451A (en) * | 2018-10-29 | 2019-03-08 | 山西晋城无烟煤矿业集团有限责任公司 | A kind of step exploitation roadway workface method for arranging |
Citations (5)
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| US4340254A (en) * | 1979-02-14 | 1982-07-20 | Tatabanyai Szenbanyak | Method of mining heavy coal seams in two or more benches |
| CN1190693A (en) * | 1998-02-18 | 1998-08-19 | 中国矿业大学（北京校区） | All thickness coal mining method for seam misplaced coal tunnel distribution on thick seam |
| CN1558090A (en) * | 2004-02-10 | 2004-12-29 | 中国矿业大学（北京校区） | Three step type stope technique for thick coal seam overall height mining |
| CN1676877A (en) * | 2005-04-26 | 2005-10-05 | 淮南矿业(集团)有限责任公司 | Adjacent coal face alternating layout coal-mining method |
| CN101876253A (en) * | 2009-04-29 | 2010-11-03 | 宝钢集团新疆八一钢铁有限公司 | Working surface layout method for mining steeply dipping coal seam |
-
2011
- 2011-10-14 CN CN2011103109267A patent/CN102392681A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4340254A (en) * | 1979-02-14 | 1982-07-20 | Tatabanyai Szenbanyak | Method of mining heavy coal seams in two or more benches |
| CN1190693A (en) * | 1998-02-18 | 1998-08-19 | 中国矿业大学（北京校区） | All thickness coal mining method for seam misplaced coal tunnel distribution on thick seam |
| CN1558090A (en) * | 2004-02-10 | 2004-12-29 | 中国矿业大学（北京校区） | Three step type stope technique for thick coal seam overall height mining |
| CN1676877A (en) * | 2005-04-26 | 2005-10-05 | 淮南矿业(集团)有限责任公司 | Adjacent coal face alternating layout coal-mining method |
| CN101876253A (en) * | 2009-04-29 | 2010-11-03 | 宝钢集团新疆八一钢铁有限公司 | Working surface layout method for mining steeply dipping coal seam |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628914A (en) * | 2013-11-13 | 2014-03-12 | 陕西煤业化工技术研究院有限责任公司 | Low-permeability thick-layer bedrock aquifer exploring and draining method for low-angle coal seam slicing mining |
| CN103628914B (en) * | 2013-11-13 | 2016-04-13 | 陕西煤业化工技术研究院有限责任公司 | The separate zone production of a kind of low-angle dip coal seam is visited to lower and is oozed the method for low-permeability thick-layer bedrock aquifer |
| CN109441451A (en) * | 2018-10-29 | 2019-03-08 | 山西晋城无烟煤矿业集团有限责任公司 | A kind of step exploitation roadway workface method for arranging |
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Application publication date: 20120328 |