LONGWALL

作品数：112被引量：449H指数：11
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相关领域：矿业工程更多>>
相关期刊：《International Journal of Coal Science & Technology》《Journal of Geological Resource and Engineering》《World Journal of Engineering and Technology》《Geohazard Mechanics》更多>>
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Investigation of ground subsidence response to an unconventional longwall panel layout
《International Journal of Coal Science & Technology》2024年第5期90-106,共17页Pengfei Wang Zhuang Zhu Linfeng Guo Huixian Wang Yue Qu Yaoxiong Zhang Linwei Wang Hua Wang 
This study was funded by the General Program of the National Natural Science Foundation of China(52274092);Hu-Bao-E National Independent Innovation Demonstration Zone Construction Science and Technology Support Project(2023XM08);Funds for Talents Supported by the China Association for Science and Technol-0gy(YESS20200211).
Ground subsidence caused by extraction of longwall panels has always been a great concern all over the world.Conventional longwall mining system(CLMS)gives rise to wavy subsidence causing great damage to surface struc...
关键词：Ground subsidence Longwall mining Split-level Mudstone interlayer Green mining 
Stability mechanism and control of the pumpable supports in longwall recovery room
《International Journal of Mining Science and Technology》2024年第7期957-974,共18页Dong Zhang Jianbiao Bai Zhijun Tian Zizheng Zhang Yonghong Guo Rui Wang Ying Xu Hao Fu Shuai Yan Min Deng Shuaigang Liu 
financial support provided by the Xinjiang Uygur Autonomous Region Key R&D Project Task Special-Department and Department Linkage Project(No.2022B01051);Major Project of Regional Joint Foundation of China(No.U21A20107);Hunan Provincial Natural Science Foundation of China(No.2024JJ4021);the Xinjiang Uygur Autonomous Region Tianchi Introduction Plan(No.2024XGYTCYC03)。
The load-bearing performance(LBP)of pumpable supports(PPS)is crucial for the stability of longwall pre-driven recovery room(PRR)surrounding rock.However,the unbalanced bearing coefficient(UBC)of the PPS(undertaking un...
关键词：Pre-driven recovery room Pumpable supports Unbalanced bearing coefficient Hydraulic fracture Stability analysis Surrounding rock control 
Surrounding Rock Failure Mechanism and Control Technology of Gob-Side Entry with Triangle Coal Pillar at Island Longwall Panel in 15 m Extra-Thick Coal Seams
《World Journal of Engineering and Technology》2024年第2期373-388,共16页Hao Sun 
Taking the return air roadway of Tashan 8204 isolated island working face as the background, the evolution law of the stress field in the surrounding rock of the widened coal pillar area roadway during the mining peri...
关键词：Island Coal Face Evolution Law of Surrounding Rock Stress Field Strong Mine Pressure Hazardous Area 
The influence of inter-band rock on rib spalling in longwall panel with large mining height被引量：1
《International Journal of Mining Science and Technology》2024年第4期427-442,共16页Jiachen Wang Meng Li Zhaohui Wang Zheng Li Han Zhang Shixiong Song 
financial support from the National Key Research and Development Program of China (No.2023YFC2907501);the National Natural Science Foundation of China (No.52374106);the Fundamental Research Funds for the Central Universities (No.2023ZKPYNY01)。
In order to improve rib stability,failure criteria and instability mode of a thick coal seam with inter-band rock layer are analysed in this study.A three-dimensional mechanical model is established for the rib by con...
关键词：Rib spalling Inter-band rock Large mining height Limit analysis Physical model experiment Numerical simulation 
Risk field assessment of longwall working face by the double-sided roof cutting along the gob
《Geohazard Mechanics》2023年第4期277-287,共11页Dongyin Li Pengkun Chen Jinzhao Liu Shen Wang Huawei Xu 
supported by the National Natural Science Foundation of China(No.52204090).
In order to study the mechanism of the dual side roof cutting technology on the composite disaster of gas and coal spontaneous combustion in goaf,a model for the evolution of porosity and permeability in the dual side...
关键词：Dual side roof cutting technology Gas explosion risk area Coal spontaneous combustion disaster risk area Compound disaster 
Unloading-slippage mechanism of coal bump in gateroad of longwall
《Geohazard Mechanics》2023年第3期208-217,共10页Jun Han Dongxu Jia Qianjia Hui Luyu Cui Zhijie Zhu Chen Cao 
supported by the National Natural Science Foundation of China(Grant No.51774174);State's Key Project of Research and Development Plan(Grant No.2017YFC0804203).
Coal bump seriously threatens the safe and efficient mining of coal,and the research on the occurrence mechanism of coal bump is of great significance.The roadway coal bump accounts for 86.8%of the total.The occurrenc...
关键词：Hard roof Gateroad Coal bump Elastic foundation UNLOADING SLIPPAGE 
Experimental study on the interrelation of multiple mechanical parameters in overburden rock caving process during coal mining in longwall panel被引量：1
《International Journal of Coal Science & Technology》2023年第4期265-289,共25页Daixin Deng Hongwei Wang Lili Xie Zeliang Wang Jiaqi Song 
supported by the State Key Research Development Program of China(2022YFC3004602);Independent Research fund of Joint NationalLocal Engineering Research Centre for Safe and Precise Coal Mining(Anhui University of Science and Technology)(EC2022001);the National Natural Science Foundation of China(41872205);Beijing Natural Science Foundation(8202041);the Fundamental Research Funds for the Central Universities(2022YJSLJ08,2022JCCXNY03).
In order to comprehend the dynamic disaster mechanism induced by overburden rock caving during the advancement of a coal mining face, a physical simulation model is constructed basing on the geological condition of th...
关键词：Overburden rock caving Multiple mechanical parameters Interrelation characterization Precursor information 
Field and numerical modelling on the stability of underground strata in longwall workings
《Energy Geoscience》2023年第1期1-12,共12页G.Budi K Nageswara Rao Punit Mohanty 
The longwall method is one of the feasible and efficient underground mining methods for greater depth of workings.Recently,Singareni Collieries Company Limited(SCCL),the largest coal-producing government company in th...
关键词：Adriyala longwall Project(ALP) Strata behaviour Field and numerical modelling 
Quantitative assessment of the spatio-temporal correlations of seismic events induced by longwall coal mining被引量：4
《Journal of Rock Mechanics and Geotechnical Engineering》2022年第5期1406-1420,共15页Shuyu Wang Guangyao Si Changbin Wang Wu Cai Binglei Li Joung Oh Ismet Canbulat 
Rock failure process as a natural response to mining activities is associated with seismic events, which can pose a potential hazard to mine operators, equipment and infrastructures. Mining-induced seismicity has been...
关键词：Spatial correlation Temporal correlation Autocorrelation function(ACF) SEMIVARIOGRAM Scale of fluctuation 
Longwall top coal caving design for thick coal seam in very poor strength surrounding strata被引量：2
《International Journal of Coal Science & Technology》2021年第4期641-658,共18页H.Jangara C.Atilla Ozturk 
Alpu lignite field is an important coal deposit with nearly 2 billion tons of coal resources located in the middle of Turkey.The mine deposit consists of three main seams.The thickness of two of them vary from 4 to 30...
关键词：Coal GEOTECHNICS Ground control Longwall mining Numerical methods 
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