Roadway supporting technology applied to three soft coal seam at Yanlong mining area in China

The compressive strength of coal in Yanlong mine area of China is less than 3 MPa. Basically, it is powdery. The roof and floor rocks are mudstone. Therefore, this coal seam is a typical “three soft” coal seam. Anchor and cable cannot be used due to low anchoring force. This paper describes how to s...

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Bibliographic Details
Main Authors: Zhang Sheng, Li Jie, Ma Jianhong
Format: Article
Language:English
Published: VINCA Institute of Nuclear Sciences 2019-01-01
Series:Thermal Science
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/0354-9836/2019/0354-98361900124Z.pdf