Results 51 to 60 of about 310 (146)

Research on Directional Long Horizontal Drilling Hydraulic Fracturing Technology in Disaster Key Stratum of Working Faces

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
Directional long horizontal drilling hydraulic fracturing technology (DLHDHF) can prevent and control the occurrence of rock burst disasters by controlling the hard roof in the near field. Therefore, it is exceedingly significant to enhance the pressure relief effect by determining the appropriate fracturing scheme. Taking Number 140202 working face of
Shang Du, Zhipeng Zhao, Derong Li, Haidong Xu, Chenjie Shen, Xuesheng Liu, Tianwu Yu, Chao Wang, Arnab Biswas   +8 more
wiley   +1 more source

Distribution Characteristics of Stress Sources and Surrounding Rock Structure Control Techniques of Gob‐Side Entry Driving in Extra‐Thick Coal Seam

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
To address the challenges of surrounding rock control caused by complex stress sources and intense ground pressure in gob‐side entry driving (GED) with narrow coal pillars under extra‐thick coal seams, this study takes the 10 m‐thick coal seam 8204 panel of Tashan Coal Mine as the engineering background.
Dongjie Jiang, Guangzhong Sun, Junjie Guo, Junwen Li, Xing Xu, Qi Ma, Arnab Biswas   +6 more
wiley   +1 more source

Study on precise control of coal caving mechanisms based on the kinematics of support structures

Gong-kuang zidonghua
Precise control of the coal caving mechanism is a crucial foundation for realizing intelligent and unmanned top coal caving mining. The spatial relationship between the coal caving mechanism and the rear scraper conveyor, as well as the top coal ...
WANG Zuguang, WANG Shen, LI Dongyin, LI Huamin, WANG Wen, YUE Shuaishuai, LI Donghui   +6 more
doaj   +1 more source

Application of Intelligent Permanent Magnet Direct Drive System of Belt Conveyor in Majialiang Coal Mine

Meikuang Anquan, 2020
Majialiang Coal Industry Company adopts the intelligent permanent magnet direct drive system in No.14208 fully mechanized caving face in view of the characteristics of long conveying distance and large volume of belt conveyor.
MA Pengfei, HUANG Zhidong
doaj   +1 more source

Prevention and Controlling Techniques for High Ground Temperature Disaster in Deep Underground Engineering: A Review

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
The issue of high geothermal temperatures in deep underground engineering has become increasingly prominent, posing severe threats to safe construction, operation, and maintenance. Employing a bibliometric approach, this study first analyzes the definition, causes, and disaster‐affected objects of high geothermal temperatures.
Wei Chen, Shiming Bai, Zhihao He, Lijuan Wang, Wanjia Guo, Tianbin Li, Liang Zhang, Zhile Shu, Meiben Gao, Xu Hong   +9 more
wiley   +1 more source

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

Water‐Inrush Risk Assessment of Roof‐Confined Aquifer Strata Based on FAHP–RF Model in the Arid–Semiarid Ecotone: A Case Study of Zhuanlongwan Coal Mine

Geofluids, Volume 2026, Issue 1, 2026.
Water inrush poses a serious threat to the safety and sustainability of coal mining operations, particularly in arid–semiarid regions where confined aquifers overlie coal seams. Therefore, an accurate assessment of roof water inrush risk is essential to prevent water hazards on the roof.
Sen Xue, Qichen Guo, Qiqing Wang, Yun Wu, Menglong Zhang, Zhen Song, Wenping Li, He Yongliang   +7 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

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

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