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 PDFInfo
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- 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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- 239000003245 coal Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000005065 mining Methods 0.000 title claims abstract description 33
- 238000011084 recovery Methods 0.000 claims description 26
- 239000002994 raw material Substances 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
-
- 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
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
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)
- Remote Sensing (AREA)
- Lining And Supports For Tunnels (AREA)
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
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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410783304.XA CN104675397B (en) | 2014-12-16 | 2014-12-16 | Fully-mechanized sublevel caving face section-free coal pillar mining method for thick coal layer |
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| CN201410783304.XA CN104675397B (en) | 2014-12-16 | 2014-12-16 | Fully-mechanized sublevel caving face section-free coal pillar mining method for thick coal layer |
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| CN104675397A CN104675397A (en) | 2015-06-03 |
| CN104675397B true CN104675397B (en) | 2017-02-01 |
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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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| Publication number | Priority date | Publication date | Assignee | Title |
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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-section type stoping process for full-height mining of thick coal seam |
| 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 |
| CN102966354B (en) * | 2012-11-09 | 2014-12-17 | 中国矿业大学(北京) | Non-pillar mining method for hard roof coal wall of thick coal seam |
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