Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Main positions: President of international exchange committee of the Chinese Society of Rock Mechanics and Engineering CSRME
Other Post: Vice President of the Chinese Society of Rock Mechanics and Engineering CSRME
Title of Paper:湿度场下矩形巷道围岩破坏规律的数值研究
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Date of Publication:2014-07-04
Journal:济南大学学报（自然科学版）
Included Journals:PKU、ISTIC
Volume:29
Issue:3
Page Number:204-209
ISSN No.:1671-3559
Key Words:湿度场;矩形巷道;围岩破坏;数值模拟
Abstract:为探究高湿度环境对矩形巷道破坏过程的影响,利用湿度-应力-损伤耦合模型,采用岩石破裂过程分析软件湿度版,建立3种层状岩层煤巷数值模型及3种开采方式的煤-岩巷道数值模型,再现湿度场下矩形巷道围岩破坏过程,分析湿度场下巷道变形随时间变化的特点.结果表明:湿度对矩形巷道的变形和破坏有显著影响.煤巷的破坏裂纹首先在两帮的煤层中萌生,进而扩展到强度较低的顶板或者底板,最终扩展到强度较高的岩层中;煤-岩巷道顶板的变形量与煤层的相对位置有关,虽然破坏同样先出现在煤层中,但是与煤巷不同的是,裂纹向距离煤层近的顶板或底板扩展.
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