Results 71 to 80 of about 2,129 (172)

Surrounding rock control theory and longwall mining technology innovation

International Journal of Coal Science & Technology, 2017
To accommodate surrounding rock structure stability control problem in underground mining, we study the coupling effect principle between hydraulic support and surrounding rock, and develop a series of longwall mining technology and equipment, which ...
Guofa Wang, Yihui Pang
doaj   +1 more source

The Combined Effect of Stress Mutation and Displacement Evolution on Overlying Rock Collapse From Physical Experiment and Numerical Simulation Study

Geofluids, Volume 2026, Issue 1, 2026.
This study investigates the complex failure mechanisms of overlying strata deformation induced by longwall mining, with a focus on the 21221 mining face in Qianqiu mine. Combining physical similarity simulation and numerical analysis, the research analyzes the abrupt changes in stress and displacement within the overlying rock mass during mining face ...
Gang Wang, Daixin Deng, Jing Liu, He Yongliang   +3 more
wiley   +1 more source

Failure analysis and prediction of roof instability in end face under repeated mining using early warning system

Scientific Reports, 2023
The overlying strata of the lower coal seam is easy to be collapsed causing the roof caving accident at the end face of the mining working face under repeated mining in close-distance coal seams.
Fei Li, Dezhong Kong, Qiang Li, Yuqi Shang, Zhanbo Cheng, Liuquan He   +5 more
doaj   +1 more source

Research on Failure Characteristics of Interlayer Water‐Resisting Rock Strata and Water Inrush Evaluation in Roof Goafs Under Deep and Shallow Repeated Mining

Geofluids, Volume 2026, Issue 1, 2026.
To address the risk of water inrush from old water‐logged goafs during deep and shallow repeated mining, this study investigates the failure characteristics of interlayer water‐resisting rock strata and establishes a corresponding water inrush evaluation method.
Kai Ma, Yilong Liu, Xiaoxia Li, Pramita Mishra   +3 more
wiley   +1 more source

Digital twin-driven integrated ground decision scheduling system for fully mechanized top-coal caving face

Gong-kuang zidonghua
To address the problems of low equipment coordination efficiency, insufficient data integration, and incomplete safety monitoring coverage in coal mine production scheduling and safety management, a digital twin-driven integrated ground decision ...
LI Haodang, BAO Xinping, LIU Qing
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

Study on the diffusion and migration law of CO2 sequestrated in abandoned coal mine goaf

Deep Underground Science and Engineering, Volume 4, Issue 4, Page 530-547, December 2025.
The goaf of an abandoned coal mine, endowed with expansive fracture spaces and an abundance of residual coal, can be capable of sequestrating substantial quantities of CO2. The residual coal is the principal medium for the sequestration of CO2 in the form of adsorption and the amount of sequestration is considerable.
Haiyang Zhou, Yu Wu, Chunhui Liu, Haozhe Geng, Chenyu Yao   +4 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 and exploration of longwall fully mechanized mining in steeply dipping coal seams

Meitan kexue jishu
To address the challenges of safe and efficient mining in steeply dipping coal seams in China and support the intelligent transformation of the coal industry, this article focuses on fully mechanized longwall mining technology for such seams.
Yongping WU, Panshi XIE, Dongfeng YUN, Hongwei WANG, Xicai GAO, Wenyu LYU, Shenghu LUO, Ding LANG, Bosheng HU, Hao ZHANG, Yingyi ZHANG   +10 more
doaj   +1 more source

Accelerating Enzyme Engineering With Artificial Intelligence in Biocatalysis: Challenges and Opportunities

Food Bioengineering, Volume 4, Issue 4, Page 589-611, December 2025.
ABSTRACT Artificial intelligence (AI) has emerged as a paradigm‐shifting force in enzyme engineering, enabling data‐driven prediction of catalytic activity, stability, and substrate specificity. By integrating large‐scale datasets from structured databases (e.g., PDB, BRENDA) and high‐throughput experimentation (e.g., deep mutational scanning ...
Xiafeng Lu, Min Cao, Muqing Ma, Yan Wu, Maohua Qu, Feng Du, Rongtao Ji, Mimi Duan, Leichi Dong, Kai Liu, Xueqi Zhang, Zhibo Luo   +11 more
wiley   +1 more source