Results 191 to 200 of about 1,887 (217)

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

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

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

Numerical Simulation of Distribution Regularities of Dust Concentration in Fully Mechanized Top-Coal Caving Face

2010 4th International Conference on Bioinformatics and Biomedical Engineering, 2010
According to characteristics of fully mechanized top-coal caving face and related survey date, a mathematical model of dust movement was derived from gas-solid two-phase flow theory. Numerical simulation of the dust concentration was made with CFD software FLUENT. The result matches well with the related survey date and shows that most of the dust move
Wei Niu, Zhong'an Jiang
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

Study on Abutment Pressure Distribution Law of Fully-Mechanized Sublevel Caving Face in Extra-Thickness

Advanced Materials Research, 2015
Based on field observation, analogy simulation and theoretical analysis, the abutment pressure distribution law of fully-mechanized sublevel caving face with extra-thickness was studied. The results showed that: Different instability type of the structure ‘Combined cantilever beam-articulated rock beam’ in fully-mechanized sublevel caving roof led to ...
openaire   +1 more source

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
Gang Zhou, Biao Sun
exaly  

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  

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

Research on mechanism and control of asymmetric deformation of gob side coal roadway with fully mechanized caving mining

Engineering Failure Analysis, 2021
Xuhui Xu, Xiaobin Li
exaly