Results 61 to 70 of about 531 (168)

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

An Adaptive Response Surface Methodology for Determining Coal Pillar Width in Geologically Variable Longwall Panels

Geofluids, Volume 2026, Issue 1, 2026.
Simulation‐based approaches are increasingly vital for addressing complex design challenges in underground coal mining, a domain where longwall pillar design is critically challenged by geological variability, and conventional methods lack adaptive capacity. This study develops a responsive design framework integrating response surface methodology (RSM)
Sen Yang, Zhe He, Yang Xu, Xin Yu, Yuxin Yuan, Zhiwen Chen, Hui Lu   +6 more
wiley   +1 more source

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

Research on automatic memory coal caving control

Gong-kuang zidonghua, 2019
For low coal caving efficiency, poor coal caving quality and other problems existing in manual coal caving control mode of fully-mechanized top coal caving working face, an automatic memory coal caving control method was proposed by referring to memory ...
CUI Zhifang, NIU Jianfeng
doaj   +1 more source

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

Mechanical Analysis of the First Fracture Characteristics of Hard Roof of Extra-thick Coal Seam

Meikuang Anquan, 2020
In order to investigate the failure mechanisms of the hard roof in the fully mechanized caving face in the extra-thick coal seam, the mechanical analysis model of the first breaking of the hard top roof in the fully mechanized caving mining of the extra-
LIANG Shaping, LU Yinlong, GUO Peng, WU Bingzhen
doaj   +1 more source

Research on the Reasonable Width of Section Coal Pillar in Ultralong Working Face Influenced by Mining Pressure

Shock and Vibration, Volume 2026, Issue 1, 2026.
Aiming at the technical problem of the section coal pillar width in ultralong fully mechanized mining face under the influence of dynamic pressure, taking 11207 face in Yuandatan Coal Mine as the engineering background, the stress distribution and failure characteristics of surrounding rock under different sections of coal pillar in Yuandatan Coal Mine
Ying Ma, Li-xin Zhao, Lun Wang, Yun-hu Bai, You Tong, Tao-tao Liu, Xiao-meng Li, Li-hui Sun, Yu-kun Qin, Liang-ping Liu, Tianshou Ma   +10 more
wiley   +1 more source

Critical technologies in the construction of underground artificial chamber for compressed air energy storage systems

Deep Underground Science and Engineering, Volume 4, Issue 4, Page 513-529, December 2025.
This schematic illustrates an artificial chamber‐based compressed air energy storage system. Excess electricity compresses air into sealed underground chambers. During demand peaks, pressurized air is heated, expanded, and drives turbines to generate power.
Jifang Wan, Mingyin Li, Rui Zhao, Wendong Ji, Jingcui Li, Maria J. Jurado, Yangqing Sun   +6 more
wiley   +1 more source

Research on the Distribution Law of Air Flow and Dust in Multi‐Process Operations of Coal Mine Fully Mechanized Caving Face

Energy Science &Engineering, Volume 13, Issue 11, Page 5247-5267, November 2025.
ABSTRACT The aim of this study is to examine the intricate dynamics involved in the production, movement, and settling of dust particles, as well as the interconnected mechanisms at play during various processes within fully automated coal mining fronts.
Yibo Li, Xiangjun Chen, Yunfei Du, Lin Li, Peiqi Zuo, Mengke Liu   +5 more
wiley   +1 more source

Construction of Domain Knowledge Graph Base for Coal Mine Rock‐Burst Prediction and Prevention Based on Ontology

Energy Science &Engineering, Volume 13, Issue 11, Page 5510-5524, November 2025.
ABSTRACT In China, as the mining depth of coal mines increases, the occurrence conditions of coal seams are becoming increasingly complex, leading to a continuous rise in the risk of rock‐burst. The frequent occurrence of such accidents has caused severe losses to the safe production of coal mines.
Shuheng Zhong, Qi Wang, Haoliang Yin
wiley   +1 more source