Deformation Failure Analysis and Stability Control Technology of Large Section Soft Rock Chamber in Deep Coal Mine

Abstract:

The chambers of certain coal mine in Shandong such as central substation situate in soft rock which consists of mudstone and fine sandstone, etc. Obvious ground pressure behaviors, large deformation and failure of surrounding rock have serious effect on mine safety production, with the impact of various complicated deep large ground pressure. This paper presents a rational scheme to control the surrounding rock steadily, based on analysis of deformation and failure on large section soft rock chamber, combined with the concept of the" combined supporting technology of long and short anchors" and "the combined supporting technology of three anchors".

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 1035-1039
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.1035
• Online since: August 2013
• Authors: Chang Hui An, Gui Bin Zhang, Zhi Da Liu, Kai Zhao, Wei Guo, Hai Lin Liu
• Keywords: Deformation, Failure of Surrounding Rock, Large Section Chamber, Soft Rock, Stability Control

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