软岩巷道支护设计方法与围岩稳定性理论研究  

Research on support design method of soft rock roadway and stability theory of surrounding rock

作　　者：王军[1] 曲广龙[2] 孟德军[3] 陈冰慧 

机构地区：[1]山东建筑大学土木工程学院,山东省济南市250101 [2]山东科技大学矿业工程学院,山东省青岛市266590 [3]淮北矿业集团有限责任公司杨庄煤矿,安徽省淮北市235025 [4]山东深博巷道支护技术有限公司,山东省济南市250022

出　　处：《中国煤炭》2017年第6期67-71,共5页China Coal

基　　金：国家自然科学基金资助项目(51474218;51404105);国家自然科学基金优秀青年基金资助项目(51622404);山东建筑大学博士基金资助项目(XNBS1403)

摘　　要：根据软岩巷道围岩的地质力学参数,将围岩细化分类,对巷道支护提出了系统的支护设计方法,该方法以支护技术、断面形状、让压方式和支护反力校核4个方面为主要内容。设计了圆形、浅底拱圆形、马蹄形以及椭圆形等多种支护断面形状,总结了支护结构自身收缩变形、预留环形变形缝、开槽卸压和开采解放层等多种巷道让压方式。针对软岩巷道提出了基于剪应力导数的围岩稳定性理论。According to the geological and mechanical parameters of soft rock tunnel surrounding rock and the classification of surrounding rock, the design method of roadway support system was proposed, this method took support technology, cross section shape, yield pressure method and support counte^force verification as the main content. Different cross-section shapes of roadway were designed, such as circle, shallow arch circle, horseshoe support cross section and oval shape. Different ways of yielding pressure were summarized. And a criteria of stability theory of soft surrounding rock, which is based on the derivative of shear stress, was proposed.

关 键 词：软岩巷道支护 断面形状 让压方式 剪应力导数 

分 类 号：TD353[矿业工程—矿井建设]