回风石门软岩巷道变形破坏机理研究  

Study on deformation and failure mechanism of return air cross-cut in soft rock

作　　者：张辉[1] 雒义超 袁静[1] 

机构地区：[1]煤炭工业济南设计研究院有限公司,山东济南250031

出　　处：《山东煤炭科技》2014年第7期30-31,34,共3页Shandong Coal Science and Technology

摘　　要：新安煤矿回风石门软岩巷道出现严重底臌、折帮和顶沉等非线性大变形破坏现象,最大顶板变形和底臌量达1800mm,严重影响巷道的正常使用,该巷道大变形控制问题亟待解决。本文运用工程地质学、软岩工程力学、粘土矿物学等多学科理论,采用现场工程地质力学分析与室内物理力学性质研究相结合的研究方法,对回风石门软岩巷道变形破坏机理进行研究,确定了该软岩巷道的复合型变形力学机制为ⅠABⅡABDⅢBC型。The air return cross - cut of Xin＇an coal mine located in soft rock, occurred the nonlinear large deformation fail-ure phenomenon such as floor heave, serious folding in two ribs and roof subsiding , the maximum roof deformation andfloor heave amounts to 1800mm, seriously affecting the normal use of the roadway, the control problems of large deforma-tion of the roadway is badly in need of solution, this paper used the engineering geology, engineering mechanics of softrock, clay mineralogy and other disciplines theory, combined with the method of analysis of geological mechanics engi-neering and the physical and mechanical properties in lab, studied the mechanism of deformation and failure of the air re-turn crosscut. And determined the composite deformation mechanism of roadway to belong to the type ⅠABⅡABDⅢBC.

关 键 词：软岩巷道 变形机理 变形力学机制 

分 类 号：TD313[矿业工程—矿井建设]