Hanging Wall Pressure Relief Mechanism of Horizontal Section Top-Coal Caving Face and Its Application—A Case Study of the Urumqi Coalfield, China

Abundant steeply-dipping thick coal seams (SDTCS) have been found in Xinjiang, China, and they are mined largely by the horizontal section top-coal caving (HSTCC) method. The hanging wall of the HSTCC face is nearly vertical and does not fracture easily after the underlying coal is extracted. As a r...

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Bibliographic Details
Main Authors: Jinshuai Guo, Liqiang Ma, Ye Wang, Fangtian Wang
Format: Article
Language:English
Published: MDPI AG 2017-09-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/10/9/1371