Results 171 to 180 of about 3,856,015 (196)

Characteristics of Gas Emission at Super-Length Fully-Mechanized Top Coal Caving Face

Journal of China University of Mining and Technology, 2007
Abstract Characteristics of gas emission at the K8206 working face in the Third mine of the Yangquan Coal Group were investigated. The effects of strata movement, advancing velocity of working face, production capacity of working face and gas extraction capability of strike high-level entry on gas emission at K8206 working face were analyzed.
Jia-lin XU, Bei-jian YU, Jin-fu LOU, Dong-ping WANG   +3 more
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

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

Finite Element Analysis of Abutment Pressure Distribution Characteristic of Working Faces in Fully Mechanized Sublevel Caving Face

Applied Mechanics and Materials, 2011
The elastic-plastic constitutive relationship and the Drucker-prager yielding criterion are used to simulate the behaviour of non-linear geo- materials. Dynamic change laws of abutment pressure of S2S2 work face of xiaokang coal mine is simuluted by the ansys program.
Hong Chun Xia, Zhen Qi Song, Li Jing Ru
openaire   +1 more source

Strata Behaviors of Fully-Mechanized Sublevel Caving Face Based on Similar Simulation Test

Advanced Materials Research, 2013
in view of research situations of the fully mechanized sublevel caving, the similar simulation test model for fully mechanized sublevel caving was presented. During the top-coal caving process, variation of top-coal subsidence and abutment pressure were measured.
openaire   +1 more source

Analysis on How to Improve the Recovery Rate of Fully Mechanized Caving Face

Foreign Language Science and Technology Journal Database Engineering Technology, 2022
openaire   +1 more source

Numerical Simulation of Dust Distributing Law in Fully Mechanized Caving Face

International Journal of Advancements in Computing Technology, 2013
Wen Nie -, Weimin Cheng -, Gang Zhou -, Xihe Wei -   +3 more
openaire   +1 more source

Coordinated Deformation Mechanism of the Top Coal and Filling Body of Gob-Side Entry Retaining in a Fully Mechanized Caving Face

International Journal of Geomechanics, 2021
Dezhong Kong, Guiyi Wu
exaly  

Numerical simulation investigation on optimal dust-exhausting airflow volume in fully mechanized caving face of high-gas coal mine

Chemical Engineering Research and Design, 2021
Biao Sun, Gang Zhou, Jinjie Duan
exaly  

Prediction and Control of Coal Spontaneous Combustion in a Multi-fault Fully Mechanized Top Coal Caving Face at the Mine Field Boundary

Combustion Science and Technology, 2022
Hu Wen, Xiaojiao Cheng
exaly