CN104675397B - Fully-mechanized sublevel caving face section-free coal pillar mining method for thick coal layer - Google Patents

Fully-mechanized sublevel caving face section-free coal pillar mining method for thick coal layer Download PDF

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Publication number
CN104675397B
CN104675397B CN201410783304.XA CN201410783304A CN104675397B CN 104675397 B CN104675397 B CN 104675397B CN 201410783304 A CN201410783304 A CN 201410783304A CN 104675397 B CN104675397 B CN 104675397B
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China
Prior art keywords
exploitation
mining
coal
seam
work
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CN201410783304.XA
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Chinese (zh)
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CN104675397A (en
Inventor
王德田
庞继禄
胡兆锋
张宗文
闫明晨
吴俊杰
成云海
刘金亮
赵成利
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新汶矿业集团有限责任公司华丰煤矿
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Priority to CN201410783304.XA priority Critical patent/CN104675397B/en
Publication of CN104675397A publication Critical patent/CN104675397A/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/16Methods of underground mining; Layouts therefor
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings

Abstract

The invention provides a fully-mechanized sublevel caving face section-free coal pillar mining method for thick coal layer. The method comprises the following steps: in a thick coal layer, mining is carried out according to a multi-section sequence, wherein the position of a first mining section is higher than that of a second mining section; a ventilation roadway of the current mining section is distributed just above a transportation roadway of the former mining section along a roof of the coal layer; and a transportation roadway of the current mining section is distributed along a bottom plate of the coal layer. With the adoption of the method provided by the invention, the possibility of impact ground pressure on the bottom plate is effectively reduced, so that the dangers that bottom coal is flushed out of the bottom plate and the roadway is blocked are reduced, and the mining safety is improved.

Description

A kind of high seam is comprehensive to put stope no section coal pillar recovery method
Technical field
The invention belongs to fully mechanized mining technical field, more particularly, to a kind of high seam is comprehensive to put stope no section coal pillar recovery method.
Background technology
Comprehensive put stope no section coal pillar exploitation desirably prevent section road occur bump.No section coal pillar is opened at present The method adopted, such as " high seam staggered floor position roadway layout adopts thick coal-mining method entirely " (patent No.: 98100544.6), be will to connect back production The intake (being simultaneously typically haulage drift) at work surface two ends is arranged in the different layers position of high seam with return aircourse, The method is by tailentry road or haulage drift (the coal body tunnel near unminding work surface side) along bottom work surface Roof arrangement, stay the ground coal setting thicker in roadway floor, base plate is coal, belongs to plane of weakness, by mining influence, easily cause lane Road stress concentration, causes roadway floor to deform, and tunnel ground coal is the position that country rock the most easily occurs bump, if impact ground Pressure, ground coal is gone out, and causes to bloat, block tunnel, easily produces major casualties.
Therefore, during existing high seam longwall top coal caving, because ground coal is thicker, press impact with being easily hit, cause ground coal punching Go out base plate, block the danger in tunnel.
Content of the invention
In view of this, it is an object of the invention to proposing that a kind of high seam is comprehensive puts stope no section coal pillar recovery method, Thicker to solve ground coal in prior art, the impact pressed with being easily hit and cause ground coal to go out base plate and block asking of tunnel Topic.In order to have a basic understanding to some aspects of the embodiment disclosing, shown below is simple summary.This summary portion Dividing is not extensive overview, is not the protection domain that will determine key/critical component or describe these embodiments.It is unique Purpose is to assume some concepts with simple form, in this, as the preamble of following detailed description.
In some optional embodiments, this recovery method includes: by Multi sectional order mining in high seam, first exploits The layer position of section is higher than the layer position of rear exploitation section;The return aircourse of current exploitation section is disposed thereon one along roof and opens The surface of the haulage drift of exploiting field section, the haulage drift of current exploitation section is arranged along seat earth.
In some optional embodiments, in this recovery method, the work surface of each exploitation section is by parallel with coal seam straight Line segment work surface and the oblique line section work surface composition connecting described straightway work surface and the return aircourse of this exploitation section;Described The haulage drift of exploitation section is located at the end of described straightway work surface.
In some optional embodiments, in this recovery method, the haulage drift of each exploitation section is arranged as half-coal rock roadway Road.
In some optional embodiments, in this recovery method, the height of the work surface of each exploitation section is 2~4m.
In some optional embodiments, in this recovery method, each exploitation section also can be to mined out during mining Area carries out filling.
In some optional embodiments, in this recovery method each exploitation section during mining to adopting work The haulage drift in face carries out sublevel fill stoping.
In some optional embodiments, in this recovery method each exploitation section during mining to adopting work The goaf in face carries out full face filling.
In some optional embodiments, the filling raw material that the process of filling in this recovery method adopts includes: spoil, water Mud or broken coal.
Compared with prior art, the invention has the benefit that
In the recovery method of the present invention, current session transportation roadway along backplane, for ensureing this tunnel and lower curtate return air The height in tunnel, is arranged as alternate heading more, and the globality in tunnel is destroyed, and deep coal body itself or " coal body country rock " are handed over Unloading deformation at boundary is released, and energy is difficult to gather, the effectively preventing bump of base plate;Current session return airway Road closes on upper curtate goaf, and bottom is the tunnel being filled with spoil, and the energy in coal petrography body is equally big after release Reduce greatly the possibility that bump occurs.
For above-mentioned and related purpose, one or more embodiments include will be explained in and in claim below In the feature that particularly points out.Description below and accompanying drawing describe some illustrative aspects in detail, and its instruction is only Some modes in the utilizable various modes of principle of each embodiment.Other benefits and novel features will with The detailed description in face is considered in conjunction with the accompanying and becomes obvious, the disclosed embodiments be intended to including all these aspects and they Equivalent.
Brief description
Fig. 1 is the comprehensive roadway layout schematic diagram putting stope no section coal pillar recovery method of embodiment of the present invention high seam.
Specific embodiment
The following description and drawings fully illustrate specific embodiments of the present invention, to enable those skilled in the art to Put into practice them.Embodiment only represents possible change.Unless explicitly requested, otherwise individually components and functionality is optional, and And the order operating can change.The part of some embodiments and feature can be included in or replace other embodiments Part and feature.The scope of embodiment of the present invention includes the gamut of claims, and the institute of claims There is obtainable equivalent.Herein, these embodiments of the present invention can individually or generally be used term " invention " To represent, it is convenient that this is used for the purpose of, and if in fact disclosing the invention more than, is not meant to automatically limit this The scope of application is any single invention or inventive concept.
Illustrate presently in connection with accompanying drawing, Fig. 1 is illustrated that some optional embodiment medium-thickness seams are comprehensive and puts stope no area The roadway layout figure of section pillar mining method.
In some optional embodiments, disclose that a kind of high seam is comprehensive to put stope no section coal pillar recovery method, this is opened Mining method includes: by Multi sectional order mining in high seam, first the layer position of exploitation section is higher than the layer position of rear exploitation section;When The return aircourse of front exploitation section is arranged in the surface of the haulage drift of a upper exploitation section, current mining area along roof The haulage drift of section is arranged along seat earth;There is no segment protection coal column between the adjacent work surface of two exploitation sections.
As shown in figure 1, in the seam mining shown in Fig. 1, according to exploitation section 1, exploitation section 2, exploitation section 3 etc. Mining sequence is exploited to coal seam successively, and wherein, the layer position of exploitation section 1 is higher than the layer position of exploitation section 2, exploits section 2 Layer position be higher than exploitation section 3 layer position, the like, first exploitation section layer position be higher than rear exploitation section layer position.At this In the roadway layout of seam mining, the return aircourse of current exploitation section is disposed thereon an exploitation section along roof The surface of haulage drift, the haulage drift of current exploitation section is arranged along seat earth, such as when exploitation section 2 is currently to open During the section of exploiting field, exploitation section 1 is then one to exploit section thereon, and the return aircourse 4 of exploitation section 2 is arranged in along roof 5 The surface of the haulage drift 6 of exploitation section 1, the haulage drift 7 of exploitation section 2 is arranged along seat earth 8.Adjacent two There is no segment protection coal column between the work surface of exploitation section, such as do not have between the work surface of exploitation section 1 and exploitation section 2 Segment protection coal column, does not have segment protection coal column between the work surface of exploitation section 2 and exploitation section 3 yet.
In some optional embodiments, in this recovery method, the work surface of each exploitation section is by parallel with coal seam straight Line segment work surface and the oblique line section work surface composition connecting described straightway work surface and the return aircourse of this exploitation section;Described The haulage drift of exploitation section is located at the end of described straightway work surface.For example exploitation section 2 in work surface 9 by with coal seam Parallel straightway work surface 10 and the oblique line section work surface connecting straightway work surface 10 and the return aircourse 4 of exploitation section 2 11 compositions, the haulage drift 7 of exploitation section 2 is located at the end of this straightway work surface 10.
In some optional embodiments, in this recovery method, the haulage drift of each exploitation section is arranged as half-coal rock roadway Road.The globality in tunnel can be destroyed so that deep coal body itself or " coal body encloses using the arrangement of alternate heading The unloading deformation of rock " intersection is released, and energy is difficult to gather, and effectively reduces impulsion pressure.
In some optional embodiments, in this recovery method, the height of the work surface of each exploitation section is 2~4m.
In some optional embodiments, in this recovery method, each exploitation section also can be to mined out during mining Area carries out filling, and wherein, some embodiments can carry out sublevel fill stoping to the haulage drift of mining face, and haulage drift is carried out Sublevel fill stoping can make goaf be effectively isolated with outside section road, prevents gas from exchanging, and some embodiments can be to The goaf of mining face carries out full face filling, can be using spoil, cement or cement in specific stowing operation Mixture, broken coal or other filling raw material filling is carried out to goaf, equally, it would however also be possible to employ the mixing of above-mentioned several raw materials Thing carries out filling to goaf.So, when seam mining is carried out to current exploitation section, the transportation roadway of an exploitation section thereon Road is filled up by spoil, so that the energy in coal petrography body is released, substantially reduces the possibility that bump occurs.
Using the method for this invention, effectively reduce the possibility that on base plate, bump occurs, thus reducing ground coal Go out base plate, block the danger in tunnel, improve the safety of exploitation.
It should also be appreciated by one skilled in the art that the described above to the disclosed embodiments, make this area professional technique Personnel are capable of or use the present invention, and the multiple modifications to these embodiments will be for those skilled in the art It will be apparent that generic principles defined herein can without departing from the spirit or scope of the present invention, at it Realize in its embodiment, therefore, the present invention is not intended to be limited to the embodiments shown herein, and be to fit to herein Disclosed principle and the consistent scope the widest of features of novelty.

Claims (8)

1. a kind of high seam comprehensive put stope no section coal pillar recovery method it is characterised in that:
Press Multi sectional order mining in high seam, first the layer position of exploitation section is higher than the layer position of rear exploitation section;
The return aircourse of current exploitation section is disposed thereon the surface of the haulage drift of an exploitation section along roof, when The haulage drift of front exploitation section is arranged along seat earth.
2. high seam according to claim 1 comprehensive put stope no section coal pillar recovery method it is characterised in that:
The work surface of each described exploitation section by the straightway work surface parallel with coal seam and connects described straightway work surface Constitute with the oblique line section work surface of the return aircourse of this exploitation section;
The haulage drift of described exploitation section is located at the end of described straightway work surface.
3. high seam according to claim 1 comprehensive put stope no section coal pillar recovery method it is characterised in that: described in each The haulage drift of exploitation section is arranged as alternate heading.
4. high seam according to claim 2 comprehensive put stope no section coal pillar recovery method it is characterised in that: described in each The height of the work surface of exploitation section is 2~4m.
5. high seam according to claim 1 comprehensive put stope no section coal pillar recovery method it is characterised in that: described in each Exploitation section also can carry out filling to goaf during mining.
6. high seam according to claim 5 is comprehensive puts stope no section coal pillar recovery method it is characterised in that described in each Exploitation section carries out sublevel fill stoping to the haulage drift of mining face during mining.
7. high seam according to claim 5 is comprehensive puts stope no section coal pillar recovery method it is characterised in that described in each Exploitation section carries out full face filling to the goaf of mining face during mining.
8. the high seam according to claim 5 to 7 any one is comprehensive puts stope no section coal pillar recovery method, and its feature exists In the filling raw material that the process of described filling adopts includes: spoil, cement or broken coal.
CN201410783304.XA 2014-12-16 2014-12-16 Fully-mechanized sublevel caving face section-free coal pillar mining method for thick coal layer CN104675397B (en)

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CN105156110A (en) * 2015-07-03 2015-12-16 陕西煤业化工技术研究院有限责任公司 Dynamic disaster mine district roadway structure and method for developing same
CN109723439A (en) * 2017-10-30 2019-05-07 中国矿业大学(北京) The method of super high seam full-seam mining Coal Mining Equipment Complement
CN108150170A (en) * 2017-12-27 2018-06-12 中国矿业大学(北京) The Support Method with sinking along bottom back is administered along top Floor Heave in Roadway
CN108952715B (en) * 2018-06-22 2020-05-05 太原理工大学 Gob-side entry driving top coal supporting and reinforcing method for inclined thick/extra-thick coal seam entry top
CN110080767B (en) * 2019-04-03 2020-11-10 太原理工大学 Overlap joint arrangement method for layered mining working face of thick coal seam

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DE4123984A1 (en) * 1991-07-19 1993-01-21 Proizv Ob Edinenie Uralkaly Be METHOD FOR MINING MIGHTY FLOORS OF USABLE MINERALS
CN2610087Y (en) * 2003-06-28 2004-04-07 靖远煤业有限责任公司 Lower design of critical large dip angle super high seam top-coal caving face
CN100590295C (en) * 2004-02-10 2010-02-17 中国矿业大学(北京校区) Three step type stope technique for thick coal seam overall height mining
CN101424195B (en) * 2008-01-23 2011-08-31 王岩 Method for digging gangue and filling tunnel for coal mine coal-rock drift
CN101824985B (en) * 2010-03-25 2012-08-01 巩庆刚 Non-coal pillar mining method of protective coal pillars in coal mine
CN101864956B (en) * 2010-04-08 2013-07-03 中国矿业大学 Sectional coal pillar-free exploitation method
CN102654054B (en) * 2011-12-09 2015-07-15 王志强 Method for determining height of caving zone of stope with internal-staggered layer-staggered position type roadway layout
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