A case study on large deformation failure mechanism of deep soft rock roadway in Xin'An coal mine, China

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• 作者：Sheng-Qi Yang ; ^{yangsqi@hotmail.com} ; Miao Chen ; Hong-Wen Jing ; Kun-Fu Chen ; Bo Meng
• 关键词：Deep underground engineering ; Soft rock ; Large deformation ; Failure mechanism ; UDEC
• 刊名：Engineering Geology
• 出版年：2017
• 出版时间：30 January 2017
• 年：2017
• 卷：217
• 期：Complete
• 页码：89-101
• 全文大小：4710 K
• 卷排序：217

文摘

Evaluate rock mass properties around the roadway using GSI. Establish the numerical model of a ventilation roadway in Xin'an coal mine using UDEC. Obtain the deformation and stress behavior of roadway under various support conditions. Analyze the crack evolution process of roadway under various support conditions. Propose and validate a new “bolt-cable-mesh-shotcrete + shell” combined support mode.