CN103821558A - Coal mine gob filling mining system and gob-side entry retaining filling process - Google Patents
Coal mine gob filling mining system and gob-side entry retaining filling process Download PDFInfo
- Publication number
- CN103821558A CN103821558A CN201410051780.2A CN201410051780A CN103821558A CN 103821558 A CN103821558 A CN 103821558A CN 201410051780 A CN201410051780 A CN 201410051780A CN 103821558 A CN103821558 A CN 103821558A
- Authority
- CN
- China
- Prior art keywords
- filling
- gob
- coal
- face
- stowboard
- 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.)
- Granted
Links
Images
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A filling system applicable to coal mining is characterized in that a gob filling material crushing and mixing station chamber is arranged on a ginney top, a stowboard is arranged within a certain distance of a rock coverage stratum on a coal mining face, fan drilling construction is performed from the stowboard above a gob to the gob, filling pipelines are laid in the stowboard, a measure for blocking between the coal mining face and the gob includes that the coal mining face and the gob are separated by a shielding plate at the rear of a hydraulic support, the gob-side entry retaining filling process includes that a gob-side entry retaining and the filling gob are separated by an individual hydraulic prop and a steel mould plate. Filling materials are conveyed to the gob through the filling pipeline; after the filling materials are solidified in certain strength, the coal mining face is pushed ahead, and mining and filling are performed circularly. The coal mine gob filling mining system and the gob-side entry retaining filling process have the advantages that stope ground pressure is effectively controlled to reduce subsidence; occupation of fertile farmland by coal gangue is avoided to eliminate environment pollution caused by the coal gangue, and green mining of coal mines can be realized.
Description
Technical field
The present invention relates to a kind of filling system that is applicable to coal mining, relate in particular to and be subject to the violent gentle dip of mining influence and inclined seam exploitation field.
Background technology
Coal is the disposable energy, in the energy resource structure of China, accounts for the principal status of public economy.Along with the fast development of China's economy, be accompanied by the increase of the demand to the energy, the yield of coal also rolls up, and has exceeded 4,000,000,000 tons at the coal production of China in 2013.The environmental problem that simultaneously coal mining brings is more and more serious, as coal mining causes strata movement and destruction, in overlying rock, forms " three bands ", causes the mobile of water and gas in rock stratum, causes coal mine gas explosion and down-hole water inrush accident; Subsidence is caused in ground, the damage of building facilities; Bulk deposition, at the spoil on ground, had both taken good farmland, caused again environment pollution; Along with the continuous increase of China's pit mining degree of depth, the frequency that the dynamic disasters such as strata behaviors and bump occur increases, and intensity increases, the safety in production that jeopardizes mine.Application number is the strip-type fluid expansion filling mining method in thick following coal seam during 201110388670.1 Chinese patent discloses, and adopts strip-type exploitation, limited by seam inclination; Application number is the laneway type filling mining method in thick during 201110070870.2 Chinese patent discloses and above coal seam, adopt pick anchor all-in-one or continuous miner to adopt laneway type exploitation and filling, production efficiency is low, and the method is only suitable for small mine or part " three times " exploitation; Application number is that 201110028042.2 Chinese patent discloses a kind of coal mine filling exploitation face timbering system; Application number is that the Chinese patent of 2011100396497.X discloses Moveable type mechanical seal filling exploitation bracket.Application number is the method for arranging that 201310184020.4 Chinese patent discloses drilling chamber in a kind of filling mining, and the method is applicable to metal mine, and drilling chamber is arranged in obturation.
The present invention is a kind of method that belongs to Coal Green exploitation, eliminates the destruction of seam mining to environment by the filling to goaf, reduces mine disaster simultaneously and occurs.
Summary of the invention
According to the restriction of above deficiency of the prior art or applicable elements, the technical problem to be solved in the present invention is: can meet under the condition of now widely used longwall actual mining work plane normal productive capacity, to being subject to the violent gentle dip of mining influence and inclined seam exploitation to realize green exploitation.
For achieving the above object, technical scheme of the present invention is as follows:
In progress of coal mining, extensively employing being processed in goaf is at present comprehensive caving method, detailed process: when coal-face advances after certain distance from open-off cut, immediate roof exposes and reaches certain area and be about to begin to collapse and fall behind in mixed and disorderly accumulation in the goaf in, hard old top is because its fracture step is larger, with the outstanding above goaf that is exposed to of platy structure, in the time that old rimrock layer reaches its strength limit, the edge at old top platy structure and middle part are formed to fracture, coal-face is pressed.After immediate roof and main roof caving fracture, can there are three representative parts in the destruction of overlying strata and movement, be called from bottom to top: caving zone, fissure zone and bending subsidence band, and generally referred to as " three bands ".The final subsidence and underground water and aquifer of causing destroys, and causes surface buildings damage; Simultaneously a large amount of spoils directly outer row are stored up, and account for firming ground, contaminated environment.
Coal mine gob filling exploitation is the propelling along with coal-face, by filling pipeline and filling borehole by filling waste rock, flyash, building waste and special filler the technology to goaf.
The advantage of coal mine gob filling mining system: increase stope filling material fragmentation and agitator chamber, stowboard, filling borehole and filling pipeline on existing production system basis, form coal mine gob filling system.This filling system and existing coal mining technique and stope production system are separate.The overlying strata of coal mine filling exploitation are caving feature and surface movement mechanism is completely different in goaf employing is caving to formula processing exploitation comprehensively.Main manifestations is: by goaf filling, form obturation roof supporting, the more comprehensive caving method exploitation of Overburden Rock Failure scope is less, generally only causes cracking behavior destruction and destroys without inbreak; When filling mining, be mainly the boil down to master of and obturation bending with rock stratum, production zone top, the whole caving methods of longwall are exploited flexural deformation take inbreak, fracture and the rock stratum, top of bottom rock as main, and both moving characteristics exist significant difference.Realize and both guaranteed that coal mining intensity does not reduce, can reduce again the destruction of coal mining to environment; Can reduce underground goaf water, methane accumulation space, the accident possibility occurrences such as reduction goaf gushing water, gas explosion, pernicious gas are given prominence to, spontaneous combustion of float, the dynamic phenomenon of inhibition coal seam and roof and floor, improves mine safety degree of protection; Can digest in a large number spoil, alleviate the impact of coal mining on earth's surface, reduce cultivated land occupancy and the resettlement of village, mining area, protect and improve mining area ecological environment, promote development of resources and Coordination Development Between Eco-environment.
The mechanism of coal mine filling exploitation: obturation supports overlying rock effect.Along with work plane is from the propelling of open-off cut, every the cemented fill of a segment distance filling certain width, support and cover top board by obturation, improve characteristics of surrounding rock.When after stope excavation, due to stress redistribution, in the certain scope in overlying strata top layer, produce weakening region, stressed its peak strength that exceeded of rock mass in this district.Being filled with of obturation can make the excavation surface residual strength of this part rock mass be improved; Obturation is mainly to support, allow and press and stop overburden deformation (or displacement) to the effect of country rock, is less important to the improvement of overlying strata top layer residual strength.For large area obturation, it can also reach the effect of controlling large-area pressure activity.Obturation is supports and allow pressure process to the mechanism of overlying strata.
Coal mine gob filling mining system comprises: stope filling material fragmentation and agitator chamber, underground stowboard is arranged and filling pipeline, filling borehole, close measure between coal-face and goaf.
This system is carried out in the steps below: a stowboard of construction in coal-face overlying rock, under constructing, to fan drilling to goaf, in stowboard, lay filling pipeline in stowboard; After the coal advance of the face one segment distance, use the shielding plate of hydraulic support rear side that coal-face and goaf are separated; Filler enters goaf through filling pipeline and filling borehole, and filler solidifies to be had after certain intensity, and coal-face is pushed ahead; Filler is the barren rock on spoil or the ground hillock of down-hole, spoil on the hillock that ground has been existed is transported to down-hole stope filling material fragmentation and agitator chamber after floor crushing, and the barren rock being excavated for stone head under mine is directly to transport to stope filling material fragmentation and agitator chamber.
Filler is barren rock, flyash, building waste and the special filler on spoil or the ground hillock of down-hole, and cementitious materials adopts cement, flyash, blast-furnace cinder, adds accelerating admixture simultaneously.
The filling process of gob side entry retaining lane side: side sets up hydraulic prop as primary structure member in lane, steel form is installed in hydraulic prop, and steel form is fixed on hydraulic prop; After goaf filling finishes, when filler has certain intensity, first from remove a hydraulic prop and corresponding steel form away from work plane position, then remove successively in order hydraulic prop and steel form.
Useful technique effect of the present invention is: in the situation that not changing existing coal-face equipment and arranging, realize the filling in goaf; Adopt the method for mining by the way of filling can effectively reduce coal-face and the stope drift active workings mine pressure of country rock around; Filler can effectively reduce ground settlement to the support of goaf top plate country rock, avoids the destruction of above ground structure; Barren rock on hillock, as filler, can be eliminated gangue and take good farmland and cause environment pollution; Set up suspension device in lane side, realized gob side entry retaining completely and without coal pillar mining.
The present invention is applicable to the goaf with Types Below coal-face: level and flat seam, gently inclined seam and inclined seam; Large coal-face is pressed on stope ground; " three times " exploit applicable coal-face.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of coal mine gob filling mining system and gob side entry retaining filling process;
Fig. 2 is coal mine gob filling mining system elevational schematic view;
Fig. 3 is coal mine gob filling mining system and gob side entry retaining filling process generalized section;
Fig. 4 is gob side entry retaining device for filling and process schematic representation.
In figure: 1. stope filling material fragmentation and agitator chamber; 2. underground stowboard; 3. filling pipeline; 4. filling borehole; 5. gob side entry retaining device for filling; 6. filling area; 7. goaf; 8. coal-face; 9. body to be mined; 10. hydraulic prop; 11. steel forms; 12. back timbers.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
Coal mine filling mining system carries out in the steps below: (1) is in the recovery process of coal-face 8, prepare filler simultaneously, spoil on the hillock that ground has been existed is transported to down-hole stope filling material fragmentation and agitator chamber 1 after floor crushing, and the barren rock being excavated for stone head under mine is directly to transport to stope filling material fragmentation and agitator chamber 1; (2) in the process of preparation coal-face correlation engineering, construction stope filling material fragmentation and agitator chamber 1, underground stowboard 2, wherein stowboard is positioned at the top of coal work face tilt; (3) after coal-face 8 was pushed ahead the width of open-off cut, start to construct filling borehole 4 in stowboard, filling borehole 4 adopts fan-shaped layout, and in the lane of gob side entry retaining, monomer hydraulic supporting 10, back timber 12 and steel form 11 are installed by side.Along with coal-face 8 continues to push ahead, corresponding monomer hydraulic supporting 10, back timber 12 and the steel form 11 installed of the lane side of gob side entry retaining.In the time that coal-face 8 is pushed ahead 10m left and right, stop the recovery activity of coal-face 8.With the shielding plate of hydraulic support rear side by coal-face 8 and goaf 7 separately; The filler of stope filling material fragmentation and agitator chamber 1 enters goaf 7 through filling pipeline 3 and filling borehole 4, and filler solidifies to be had after certain intensity, and coal-face 8 is pushed ahead.
The filling process of gob side entry retaining lane side: side sets up hydraulic prop 10 as primary structure member in lane, at the interior installation steel form 11 of hydraulic prop 10, and steel form 11 is fixed on hydraulic prop 10; Goaf 8 sand ofves and filler have after certain intensity, first from removing successively in order hydraulic prop 10 and steel form 11 away from work plane position.
The above; it is only the specific embodiment of the present invention; but the protection domain of invention is not limited to this; any engineers and technicians that are familiar with the art are in technical scope of the present invention; can do some conversion; help quarantine measures etc. as the filling lane of the quantity of the position of stowboard, filling borehole, gob side entry retaining, all should serve as and invade protection scope of the present invention.Therefore protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (2)
1. coal mine gob filling mining system, is characterized in that: comprise close measure between stope filling material fragmentation and agitator chamber, stowboard, filling pipeline, filling borehole, coal-face and goaf, this system is carried out in the steps below:
(1) at the track mountain in exploiting field upper top, filler fragmentation and agitator chamber are set;
(2) stowboard of constructing in coal-face overlying rock;
(3) in stowboard, lay filling pipeline;
(4) in stowboard under construction to fan drilling to goaf;
(5), when coal-face advances after a segment distance, use the shielding plate of filling hydraulic support rear side that coal-face and goaf are separated;
(6) filler of stope filling material fragmentation and agitator chamber enters goaf through filling pipeline and filling borehole, and filler solidifies to be had after certain intensity, and coal-face is pushed ahead;
(7) barren rock on filler is down-hole spoil or ground hillock enters agitator after fragmentation, and cementitious materials adopts cement, flyash, blast-furnace cinder, adds accelerating admixture simultaneously.
2. gob side entry retaining filling process, is characterized in that: in lane, side sets up hydraulic prop as primary structure member, steel form is installed in hydraulic prop, and steel form is fixed on hydraulic prop; After bashing finishes, work as filler and there is certain intensity, from removing successively in order hydraulic prop and steel form away from coal-face position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051780.2A CN103821558B (en) | 2014-02-14 | 2014-02-14 | Coal mine gob filling mining and gob side entry retaining filling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051780.2A CN103821558B (en) | 2014-02-14 | 2014-02-14 | Coal mine gob filling mining and gob side entry retaining filling process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103821558A true CN103821558A (en) | 2014-05-28 |
| CN103821558B CN103821558B (en) | 2016-02-24 |
Family
ID=50756819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410051780.2A Active CN103821558B (en) | 2014-02-14 | 2014-02-14 | Coal mine gob filling mining and gob side entry retaining filling process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103821558B (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948191A (en) * | 2015-07-15 | 2015-09-30 | 辽宁工程技术大学 | Method for preventing and treating rock burst by using filling mode |
| CN105604552A (en) * | 2015-12-21 | 2016-05-25 | 冀中能源集团有限责任公司 | Solid material filling mining gob side entry retaining method |
| CN106321103A (en) * | 2016-09-08 | 2017-01-11 | 中国矿业大学 | Method for recycling room coal pillars by solid filling in synergy with artificial pillars |
| CN106522980A (en) * | 2015-09-15 | 2017-03-22 | 四川达竹煤电(集团)有限责任公司金刚煤矿 | Gob-side roadway protection support for inclined middle-thickness coal bed layered roof and construction method for gob-side roadway protection support |
| CN106968708A (en) * | 2016-11-17 | 2017-07-21 | 湖南科技大学 | A kind of half-edge coal seam moves towards fully mechanized mining without coal column sublevel fill stoping coal-mining method |
| CN107524469A (en) * | 2017-07-25 | 2017-12-29 | 中南大学 | A kind of gently inclined orebody paneling barren rock and the cementing combination filling method of tailings |
| CN108222938A (en) * | 2018-02-07 | 2018-06-29 | 西安科技大学 | A kind of large-inclination-angle coal bed goaf combination grouting filling recovery method |
| CN108468564A (en) * | 2018-03-12 | 2018-08-31 | 中国矿业大学 | A kind of flat seam lane formula consolidated fill method |
| CN108625862A (en) * | 2018-04-11 | 2018-10-09 | 贵州开磷建设集团有限公司 | A kind of sinking and drifting method on loose crushing rock mass |
| CN109944634A (en) * | 2019-04-19 | 2019-06-28 | 中国矿业大学(北京) | A kind of Seam Roof And Floor filling type goaf filling structure and its placement method |
| CN109973144A (en) * | 2019-04-04 | 2019-07-05 | 中国矿业大学(北京) | Fill the both wings recovery method for replacing work compound with rotation |
| CN110043311A (en) * | 2019-03-29 | 2019-07-23 | 新汶矿业集团有限责任公司 | A kind of goaf grouting filling process for being suitble to stay lane |
| CN112943243A (en) * | 2021-02-08 | 2021-06-11 | 中国矿业大学 | Method for old hole cutting of oversize section of fully mechanized caving face of shallow-buried extra-thick coal seam |
| CN113404531A (en) * | 2021-06-18 | 2021-09-17 | 中国矿业大学 | Goaf filling method for reconstructing broken roof structure in coal pillar-free mining |
| CN113586053A (en) * | 2021-08-27 | 2021-11-02 | 东莞理工学院 | Trinity gob-side entry retaining gangue filling mining method |
| CN113622993A (en) * | 2021-09-06 | 2021-11-09 | 中国矿业大学 | Mineralizing and utilizing CO2Waste gas ecological protective coal mining method |
| CN114673550A (en) * | 2022-03-31 | 2022-06-28 | 中国矿业大学(北京) | Waste rock treatment method for continuous filling mining |
| CN115263412A (en) * | 2022-07-22 | 2022-11-01 | 中国矿业大学 | Method for filling caving coal goaf |
| CN117266922A (en) * | 2023-10-17 | 2023-12-22 | 济宁矿业集团矿产资源勘查开发有限公司 | Postmining filling water-reducing process and postmining filling water-reducing equipment for goaf of shallow-buried thin coal seam coal mine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201486566U (en) * | 2009-08-27 | 2010-05-26 | 王晓利 | Device for pouring concrete continuous wall through gob-side entry retaining of mining working surface |
| CN101806226A (en) * | 2010-03-19 | 2010-08-18 | 中国矿业大学 | Mined out space dam-type filling method |
| CN102817614A (en) * | 2012-05-29 | 2012-12-12 | 中钢集团马鞍山矿山研究院有限公司 | Stope structure arrangement mode suitable for underground mine high productivity and low cost subsequent filling |
| CN103382849A (en) * | 2013-07-31 | 2013-11-06 | 安徽理工大学 | Method for filling paste behind filling hydraulic supports |
| CN103485820A (en) * | 2013-10-09 | 2014-01-01 | 山东科技大学 | Filling wall body capable of protecting laneway through soft yielding in non-chain-pillar filling mining and construction method thereof |
-
2014
- 2014-02-14 CN CN201410051780.2A patent/CN103821558B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201486566U (en) * | 2009-08-27 | 2010-05-26 | 王晓利 | Device for pouring concrete continuous wall through gob-side entry retaining of mining working surface |
| CN101806226A (en) * | 2010-03-19 | 2010-08-18 | 中国矿业大学 | Mined out space dam-type filling method |
| CN102817614A (en) * | 2012-05-29 | 2012-12-12 | 中钢集团马鞍山矿山研究院有限公司 | Stope structure arrangement mode suitable for underground mine high productivity and low cost subsequent filling |
| CN103382849A (en) * | 2013-07-31 | 2013-11-06 | 安徽理工大学 | Method for filling paste behind filling hydraulic supports |
| CN103485820A (en) * | 2013-10-09 | 2014-01-01 | 山东科技大学 | Filling wall body capable of protecting laneway through soft yielding in non-chain-pillar filling mining and construction method thereof |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948191A (en) * | 2015-07-15 | 2015-09-30 | 辽宁工程技术大学 | Method for preventing and treating rock burst by using filling mode |
| CN106522980A (en) * | 2015-09-15 | 2017-03-22 | 四川达竹煤电(集团)有限责任公司金刚煤矿 | Gob-side roadway protection support for inclined middle-thickness coal bed layered roof and construction method for gob-side roadway protection support |
| CN105604552A (en) * | 2015-12-21 | 2016-05-25 | 冀中能源集团有限责任公司 | Solid material filling mining gob side entry retaining method |
| CN106321103A (en) * | 2016-09-08 | 2017-01-11 | 中国矿业大学 | Method for recycling room coal pillars by solid filling in synergy with artificial pillars |
| CN106968708A (en) * | 2016-11-17 | 2017-07-21 | 湖南科技大学 | A kind of half-edge coal seam moves towards fully mechanized mining without coal column sublevel fill stoping coal-mining method |
| CN107524469B (en) * | 2017-07-25 | 2019-05-28 | 中南大学 | A kind of gently inclined orebody paneling barren rock and the cementing combination filling method of tailings |
| CN107524469A (en) * | 2017-07-25 | 2017-12-29 | 中南大学 | A kind of gently inclined orebody paneling barren rock and the cementing combination filling method of tailings |
| CN108222938A (en) * | 2018-02-07 | 2018-06-29 | 西安科技大学 | A kind of large-inclination-angle coal bed goaf combination grouting filling recovery method |
| CN108222938B (en) * | 2018-02-07 | 2020-01-03 | 西安科技大学 | Combined grouting filling mining method for large-inclination-angle coal seam goaf |
| CN108468564A (en) * | 2018-03-12 | 2018-08-31 | 中国矿业大学 | A kind of flat seam lane formula consolidated fill method |
| CN108625862A (en) * | 2018-04-11 | 2018-10-09 | 贵州开磷建设集团有限公司 | A kind of sinking and drifting method on loose crushing rock mass |
| CN110043311A (en) * | 2019-03-29 | 2019-07-23 | 新汶矿业集团有限责任公司 | A kind of goaf grouting filling process for being suitble to stay lane |
| CN109973144A (en) * | 2019-04-04 | 2019-07-05 | 中国矿业大学(北京) | Fill the both wings recovery method for replacing work compound with rotation |
| CN109944634A (en) * | 2019-04-19 | 2019-06-28 | 中国矿业大学(北京) | A kind of Seam Roof And Floor filling type goaf filling structure and its placement method |
| CN112943243A (en) * | 2021-02-08 | 2021-06-11 | 中国矿业大学 | Method for old hole cutting of oversize section of fully mechanized caving face of shallow-buried extra-thick coal seam |
| CN113404531A (en) * | 2021-06-18 | 2021-09-17 | 中国矿业大学 | Goaf filling method for reconstructing broken roof structure in coal pillar-free mining |
| CN113586053A (en) * | 2021-08-27 | 2021-11-02 | 东莞理工学院 | Trinity gob-side entry retaining gangue filling mining method |
| CN113622993A (en) * | 2021-09-06 | 2021-11-09 | 中国矿业大学 | Mineralizing and utilizing CO2Waste gas ecological protective coal mining method |
| CN113622993B (en) * | 2021-09-06 | 2022-05-17 | 中国矿业大学 | Mineralization ecological protective coal mining method utilizing CO2 waste gas |
| CN114673550A (en) * | 2022-03-31 | 2022-06-28 | 中国矿业大学(北京) | Waste rock treatment method for continuous filling mining |
| CN115263412A (en) * | 2022-07-22 | 2022-11-01 | 中国矿业大学 | Method for filling caving coal goaf |
| CN117266922A (en) * | 2023-10-17 | 2023-12-22 | 济宁矿业集团矿产资源勘查开发有限公司 | Postmining filling water-reducing process and postmining filling water-reducing equipment for goaf of shallow-buried thin coal seam coal mine |
| CN117266922B (en) * | 2023-10-17 | 2024-03-19 | 济宁矿业集团矿产资源勘查开发有限公司 | Postmining filling water-reducing process and postmining filling water-reducing equipment for goaf of shallow-buried thin coal seam coal mine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103821558B (en) | 2016-02-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103821558B (en) | Coal mine gob filling mining and gob side entry retaining filling process | |
| CN112360462B (en) | Mining process for filling and grouting short-wall fully-mechanized mining gangue | |
| CN108518222B (en) | Paste body filling combination top plate presplitting second mining super high seam stops the method for adopting line coal column | |
| CN112031775B (en) | Novel coal mine rock burst treatment method | |
| CN103742148B (en) | The soft coal-mining method covering the descending waste filling of supporting of a kind of half-edge coal seam | |
| WO2011103620A1 (en) | A method of reducing subsidence or windblast impacts from longwall mining | |
| CN108087021A (en) | A kind of method that filling coal mining recycling leaves coal column and water-resisting key strata is controlled to stablize | |
| CN104632220B (en) | Mining method with adjustable and controllable structure size of gentle dip medium-thickness ore body strip column reconstructed stope | |
| CN105317459A (en) | Subarea filling method used for controlling large-area falling disaster of hard roof | |
| CN106894816A (en) | Far field key stratum based on set square structural model cuts top release shield lane method | |
| CN108343418B (en) | Method for controlling mining influence range from surface directional hydraulic fracturing pre-cracked bedrock | |
| AU2021106168A4 (en) | High-gas Coal Seam Group Pressure Relief Mining Method Based on Gob-side Entry Retaining in the First Mining Whole Rock Pressure Relief Working Face | |
| CN104847355A (en) | Continuous mining method for hollow ground of medium-thickness steeply inclined ore body | |
| CN102900449B (en) | Support method for underground goaf roof of coal mine | |
| CN111411962A (en) | Coal mine rock burst treatment method | |
| CN111608726A (en) | Method for reducing damage of spaced overlying rock crushed-expansion filling steel reinforcement cage bag by grouting | |
| CN104533419B (en) | Method for partial recovery of residual coal from wide coal pillar | |
| CN104989408A (en) | Safe and high-efficiency mining method for metal mine in mountainous area | |
| CN103216264A (en) | Method for controlling deformation of surrounding rock of basic rimrock layer on presplitting blasting mining roadway | |
| CN104948191A (en) | Method for preventing and treating rock burst by using filling mode | |
| CN110671148B (en) | One-hole multi-open ground grouting filling method above coal pillar | |
| CN112593939A (en) | Method for mining 'three lower' coal seam by replacing all coal pillars through gangue double filling | |
| CN114087016B (en) | Caving-to-filling mining isolation top column pre-control supporting method | |
| CN110359910B (en) | Fully mechanized caving high-level filling mining method for thick coal seam strips under coal mine railway | |
| CN113187481A (en) | Filling mining method for overburden rock concentrated grouting caving stoping |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190812 Address after: 016200 Manhatu Town, Shanghai Miao Town, Etok Qianqi, Ordos City, Inner Mongolia Autonomous Region Patentee after: Otog Front Banner Changcheng Mine Co.,Ltd. Address before: 232001 Anhui Province, Huainan city Shungeng Road No. 168 Patentee before: Anhui University Of Science And Technology |