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Mining stress formation and distribution: Predictive model based on overburden key strata structure

Energy Science & Engineering
In coal mines, the effective extraction of relief gas and the prevention of dynamic disasters depend on accurate predictions of the spatial distribution of mining stress in the overlying rock.
Hongkai Han, Zhengquan Hu, Yanwei Liu, Weiqin Zuo, Xiaozhen Wang, Can Shi, Yanyan He, Yuchun Qi   +7 more
doaj   +4 more sources

Structural model of hard overburden shell in thick coal seam and its application [PDF]

Scientific Reports
Taking the mining of extra-thick coal seam of Carboniferous hard overburden in tongxin coal mine of datong mining area as the engineering background, the movement characteristics of hard overburden in fully-mechanized caving mining of 3–5 # extra-thick ...
Xing Fu, Lingjun Zeng, Hai Rong, Hongwei Zhang, Tianhao Liu, Jiankang Song   +5 more
doaj   +2 more sources

Structure of an Ancient Egyptian Tomb Inferred from Ground-Penetrating Radar Imaging of Deflected Overburden Horizons [PDF]

Archaeological Prospection, 2015
AbstractGeophysical data acquisitions in most archaeological campaigns aim to image the target structure directly. The presence of a target, however, may be inferred from its interaction with surrounding layers, if its relationship with those layers can be characterized sufficiently.
Booth, AD, Griffin, K, Pischikova, E, Szpakowska, K   +3 more
core   +6 more sources

Control mechanism of the surrounding rock structure of multisection stopes in steeply dipping coal seams under overburden transient changes excitation [PDF]

Scientific Reports
The mining cycle of multi-section stopes in steeply dipping coal seams is protracted, and the ground pressure appearance is complex.This study utilized physical simulation and theoretical analysis to investigate the surrounding rock structural evolution ...
Yongping Wu, Jingyu Huangfu, Shenghu Luo, Yepeng Tang, Zhuangzhuang Yan, Chengyang Tian, Tong Wang   +6 more
doaj   +2 more sources

The Overburden Structure Characteristics and Subsidence Reduction Mechanism of Mining by Overburden Bed Separation Grouting

Energy Science & Engineering
Overburden bed separation grouting (OBSG), a green mining method, can prevent coal‐mining subsidence reduction and protect the environment of mining areas.
Zhiyou Gao, Ning Jiang, Haiyang Pan, Zhenzu Qu, Chao Gong   +4 more
doaj   +2 more sources

Study on overburden structure and working resistance of supports in deep buried coal seam

Meikuang Anquan, 2023
In view of the characteristics of complex overburden structure and strong mining pressure in deep coal seam working face with large mining height, taking Yangchangwan Coal Mine as the engineering background, the mechanical model of overburden rock ...
LIU Hongtao, HAN Zhou, HAN Zijun, YANG Zhihua, HE Weisheng, WANG Sichen, LUO Zilong
doaj   +2 more sources

Overburden breakage and surface damage evolution under high-intensity mining of shallow coal seams: evidence from Shendong mining area [PDF]

Scientific Reports
During high-intensity mining of shallow coal seams, severe overburden movement and surface subsidence can lead to geological hazards like ground fissures.
Huan Zhang, Jie Zhang, Zhuhe Xu, Junwei Zhang, Shuangli Du, Shirong Wei, Xuejia Li   +6 more
doaj   +2 more sources

Cosmic muon flux measurement and tunnel overburden structure imaging [PDF]

Journal of Instrumentation, 2020
We present a cosmic ray muon tomographic experiment for measuring the muon flux and imaging the tunnel overburden structures in Changshu, China. The device used in this study is a tracking detector based on the plastic scintillator with SiPM technology, which can be conveniently operated in field works.
R. Han, Q. Yu, Z. Li, J. Li, Y. Cheng, B. Liao, L. Jiang, S. Ni, Z. Yi, T. Liu, Z. Wang   +10 more
openaire   +2 more sources

Study on Space–Time Evolution Law and Mechanism of Instability Failure of Deep High-Stress Overburden Rock

Applied Sciences, 2023
In order to explore the fracture law and structural evolution characteristics of overlying strata in deep high-stress mining, according to the geometric characteristics and mechanical causes of overlying strata in different mining stages of the stope ...
Xinfeng Wang, Qiao Zhang, Wengang Liu, Youyu Wei, Tian Jiang, Fuxu Hao   +5 more
doaj   +1 more source

Optimization numerical simulation of staggered distance scheme for double coal seam mining in Yushen Mining Area

Meikuang Anquan, 2021
In order to study the optimal scheme of staggered distance mining in double coal seam and its influence on the key strata of overburden structure, take the geological conditions of Yushen Mine Area as the background, the optimal scheme was selected from
SUN Xueyang, LU Mingjiao, LI Cheng, MIAO Lintian
doaj   +1 more source