Results 111 to 120 of about 902 (192)

Simulation Study of Gas Seepage in Goaf Based on Fracture–Seepage Coupling Field

Fire
In order to solve the problem of gas overrun in the fully mechanized caving face and the upper corner of high gas and extra-thick coal seam, the fracture and caving process of the roof in the goaf is analyzed and studied by using the relevant theories of
Hongsheng Wang, Huaming An, Xin Zhang
doaj   +1 more source

Numerical Simulation Study of Support Pressure around the Fully Mechanized Caving Face

World Journal of Engineering and Technology, 2023
Peihao Li, Linchao Zhang, Pan Chi, Jinhai Gao   +3 more
openaire   +1 more source

Analysis of overburden structure and support working resistance of working face in fully-mechanized top coal caving with large mining height in ultra thick coal seam

矿业科学学报, 2017
In order to grasp the overburden structure and support working resistance of working face in fully-mechanized top coal caving with large mining height in ultra thick coal seam, this paper study the ultra thick coal seam in Tongxin coal mine.The fracture ...
Hou Yunbing, He Shangsen, Zhou Dianqi, Han Shuai, Zhou Yu   +4 more
doaj  

Mechanism and Application of Static Stress Intervention for Controlled Directional Roof Caving in Fully Mechanized Mining Faces

Processes
To address roof overhang hazards (e.g., rock bursts and gas accumulation) in high-gas coal mines, this study proposes a static stress intervention method for controlled directional roof collapse. Using the 150110 fully mechanized face at Yiyuan Coal Mine as a case study, we investigate the mechanical mechanism of static stress intervention-induced roof
Hao Shi, Bingyuan Hao, Xingyun Ren, Ji Zhang   +3 more
openaire   +1 more source

Simulation and Field Measurement Study on Roof Strata Behavior of Fully Mechanized Caving Face [PDF]

Proceedings of the 8th Russian-Chinese Symposium "Coal in the 21st Century: Mining, Processing, Safety", 2016
Wang Jianning, Song Wencheng, Liu Weitao
openaire   +1 more source

Failure characteristic and fracture evolution law of overburden of thick coal in fully mechanized sub-level caving mining

, 2017
In mining process, the height of water flowing fractured zone is important significance to prevent mine of water and gas, in order to further research the failure characteristic of the overlying strata.
Nur Asiha Binti Sazali
core  

Application of Real-time Pressure Monitoring System of Fully Mechanized Working Face

, 2011
The paper introduced design of a real-time pressure monitoring system of fully mechanized working face taking 120204 fully mechanized working face of Yangchangwan Coal Mine as example.
WANG Xin-wen, LIU Yun-xia
core  

Development Law of Water-Conducting Fracture Zones in Overburden above Fully Mechanized Top-Coal Caving Face: A Comprehensive Study

Although it is of great significance to master the height of the water-conducting fracture zone (WCFZ) to prevent coal mine disasters and ensure safe production, the most important thing is to predict the height and range of the WCFZ ahead of the working
Jiancheng Che, Tongxu Hu, Bo Li, Taihu Huo, Tao Hu, Kaiqiang Han, Chunhua Song   +6 more
core   +1 more source

Study on mechanism of air distribution volume's influence on airflow, dust migration and spray dust reduction in fully mechanized caving face. [PDF]

Sci Rep
Hongjie Z, Shaocheng G, Tian Z, Deji J, Xi C, Xingyu C.   +5 more
europepmc   +1 more source

Study on Flow Field Evolution Law of Goaf in Fully Mechanized Caving Face and Gel Air Leakage Blocking Technology under Withdrawal Condition. [PDF]

ACS Omega
Xie S, Dong C, Liu X, Li L, Wang G, Hao R.   +5 more
europepmc   +1 more source