Results 161 to 170 of about 902 (192)

A new determination method of hydraulic support resistance in deep coal pillar working face. [PDF]

Sci Rep
Li GD, Li XL, Huan HH, Lin HX, Ren ZY, Ren H.   +5 more
europepmc   +1 more source

Study on the mechanism and prevention techniques of dynamic disaster in nearly vertical extra-thick coal seams. [PDF]

Sci Rep
Zhang Y, Li Q, Li L, Zhang J, Liu C, Yue H.   +5 more
europepmc   +1 more source

Mechanism and control strategies for asymmetric floor heave in extra-thick coal seam roadways under high stress. [PDF]

Sci Rep
Zhang J, Sun J, Wang B, Yang T, He Y, Gao S, Qin G, Zhang Y.   +7 more
europepmc   +1 more source

Evolution of Overburden Fractures and the Water-Conducting Fracture Zone in Closely Spaced Coal Mine Seams under Highly Water-Rich Aquifers. [PDF]

ACS Omega
Liu X, Zheng L, Liu H, Zuo Y, Ren W, Zhu X, Zhou X.   +6 more
europepmc   +1 more source

Design and Optimization of the Exhausting-Flowing Remover in Fully-Mechanized Top-Coal Caving Mining Face

Advanced Materials Research, 2011
Because of its high output，much more dust is produced in fully-mechanized Longwall mining with top-coal caving (LMTC) mining faces than in conventional mechanized mining faces without top-coal caving. Now dust control in fully-mechanized LMTC mining faces has become a key technological problem needed to be solved.
Guo Dong Zhai, Zhi Feng Dong, Sheng Ming Yan   +2 more
openaire   +2 more sources

Development Law of Water-Conducting Fracture Zone in the Fully Mechanized Caving Face of Gob-Side Entry Driving: A Case Study

Minerals (Basel, Switzerland), 2022
This study is aimed at exploring the influence of narrow coal pillars in gob-side entry driving (GSED) on the development height of the water-conducting fracture zone (WCFZ) in the fully mechanized caving face.
Yi Tan, Weitao Yan, Wenbing Guo
exaly   +2 more sources

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Study on Comprehensive Gas Control Technology of High-Gas Fully Mechanized Caving Face

Advanced Materials Research, 2012
In order to comprehensively control the gas of 1151(3) fully mechanized caving face in Xieqiao coalmine scientificly and efficiently, combining the actual situation of the face, gas drainage technologies such as roof drilling, drilling along seam, gas drainage in upper corner, roof drainage roadway had been applied and a comprehensive gas control ...
Weimin Cheng, Hai Yang Wang, Lu Lu Sun
openaire   +1 more source

Combined early warning method for rockburst in a Deep Island, fully mechanized caving face

Arabian Journal of Geosciences, 2016
Rockbursts annually cause hundreds of casualties and huge economic losses in China. The possibility of rockbursts occurring in a deep island, fully mechanized caving coal face is much higher than in a normal face. To predict and prevent rockbursts in this type of coal face, a comprehensive approach based on multi-instrument monitoring, including ...
Bangyou Jiang, Lianguo Wang, Yinlong Lu, Chunqiu Wang, Dan Ma   +4 more
openaire   +1 more source

The dust emission kinetic scenario of top coal caving at the tail beam periodicity swing in the fully mechanized caving face

Chemical Engineering Research and Design
Xin-xiao Lu, Jin-xiang Xiao, Zi-yao Chen, Yue Zhang, Jia-wei Miao   +4 more
exaly   +2 more sources

Notice of Retraction: Study on fully mechanized caving face end or foreside supporting system

2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011
The end of fully mechanized caving face is keystone and difficulty on protecting and managing the top. The effect on supporting the end of work face is very importment to mechanical and electrical machine, and very importment to workers' safety. The text analyze the problem of supporting the end at present, and Aiming at these problem, reach and ...
Peng-cheng Zhang, Guo-ying Meng, Ai-ming Wang, Wei Li   +3 more
openaire   +1 more source