Results 111 to 120 of about 6,281 (245)

Mechanism and Prevention of Rockburst in Steeply Inclined and Extremely Thick Coal Seams for Fully Mechanized Top-Coal Caving Mining and Under Gob Filling Conditions

Energies, 2020
The steeply inclined and extremely thick coal seams (SIETCS) under the condition of gob filling frequently suffer from the occurrence of rockbursts. Figuring out the mechanisms of rockbursts under this condition for taking targeted measures to mitigate ...
Shengquan He, Da-zhao Song, Zhenlei Li, Xueqiu He, Jianqiang Chen, Taoping Zhong, Quan Lou   +6 more
semanticscholar   +1 more source

Study on the Evolution of Concentrated Stress Distribution in Close‐Proximity Coal Seam Residual Pillars

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Closely spaced coal seams are extensively distributed across China. As shallow coal resources face increasing depletion, coal mining is gradually extending to deeper zones. Deciphering the stress distribution pattern of the residual coal pillar floor in closely spaced coal seams is of profound importance to the safe and efficient mining operations of ...
Dengyan Gao, Chenyang Ma, Wen Luo, Kuiying Gao, Jing Chai, Zhicheng Han, Jianhua Chen, Yinsu Tian, Meilu Yu   +8 more
wiley   +1 more source

Break Even Analysis of Mining Projects [PDF]

, 2010
The economics of the resources industry are unique. All mining is subject to uncertainties not applicable to other industries. Every mine is different. Industry economics are difficult to quantify and categorize. Information is very costly.
Ahmad , F, Chauhan, H K
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Coal–Rock Damage and Subsidence Control Technology in Deep‐Mine Strip Mining Under Large Mining Heights

Geofluids, Volume 2026, Issue 1, 2026.
A comprehensive approach incorporating field measurements, theoretical analysis, and numerical simulations was adopted to determine the strip‐mining parameters for mining under large mining heights in kilometer‐deep coal seams and achieve protective mining.
Jiang Shuyin, Guo Wenbing, Li Xingyu, Yang Jie, Ni Huining, Yang Chao, Chai Yixuan, Ma Qi, He Yongliang   +8 more
wiley   +1 more source

Application of Fuzzy and RBF Neural Networks in the Prediction of Distribution of Coal Seams [PDF]

, 2016
A prediction approach through fuzzy logic and RBF neural networks were proposed to determine the distribution of coal seam terrains. A triangular fuzzy set was selected as the fuzzification basis for this work.
R, S. S. (Sruthi), Yuvaraju, M. (M)
core  

Skewed Pressure Characteristics of Equivalent Load in Double-Arch Tunnel [PDF]

, 2016
It is of great importance to reasonably estimate the surrounding rock load of a double-arch tunnel for the design, construction and stability evaluation of the tunnel.
Cui, F. (Fang), Li, C. (Chunliu), Wang, S. (Shuren), Wang, Y. (Yongguang), Yang, F. (Fan)   +4 more
core   +3 more sources

Modeling the Speed‐Induced Key Block Motion and Support Resistance in Longwall Mining With a Multilayer Hard Roof: Insights From the Xiaojihan Coal Mine

Geofluids, Volume 2026, Issue 1, 2026.
To theoretically explain and quantify the effect of advancing speed (ADS) on ground pressure (GP) behavior, the 13,218 working face of the Xiaojihan Coal Mine (XCM) was taken as the engineering case. Field measurements and theoretical analysis were combined to examine how changes in ADS influence the roof structure and the support resistance ...
Hui Gao, Xiaopeng Duan, Xufeng Wang, Yuanman Xie, Enqiang Liu, Xuyang Chen, Chenlong Qian, Pramita Mishra   +7 more
wiley   +1 more source

Current status and prospects of surrounding rock control and intelligent coal drawing technology in fully mechanized caving face

Gong-kuang zidonghua
This paper analyzes the current status and existing issues in the control technology of surrounding rock and intelligent top coal caving technology for thick and ultra-thick coal seams in fully mechanized caving faces.
PANG Yihui, GUAN Shufang, JIANG Zhigang, BAI Yun, LI Peng   +4 more
doaj   +1 more source

Exploration and Comprehensive Treatment Technology of Overburden Fracture in UnderlyingGoaf of Reservoir

Meikuang Anquan, 2020
Taking the grouting filling treatment project in the goaf of 8712 working face of Huoshizui Coal Mine as the background, based on the theory of mining subsidence and the method of combining borehole wave velocity test and pressure water test, the ...
HUANG Jianfeng, WU Zhang, WANG Yutao, DUAN Peiran, LI Yongqiang, ZHANG Hao
doaj   +1 more source

Экологические аспекты прогрессивных технологий отработки мощных угольных пластов с выпуском подкровельной толщи [PDF]

, 2017
В статье рассматриваются экологические аспекты прогрессивных технологий отработки мощных угольных пластов с выпуском подкровельной толщи, а также последствия не полной выемки угля в отработанных участках шахт, которые наносят экологический ущерб в виде ...
Клишин, В. И., Никитенко, С. М., Пфаргер, Е. С.   +2 more
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