高应力软岩破碎巷道围岩变形控制研究  

Research on Deformation Control of Soft Crushed Rock Roadway with High Stress

作　　者：付强[1,2] 赵玉成[1,2] 徐慧[1,2,3] 何东旭[1,2] 甄亚斌 

机构地区：[1]中国矿业大学深部岩土力学与地下工程国家重点试验室,山东菏泽274015 [2]中国矿业大学力学与建筑工程学院,江苏徐州221116 [3]菏泽学院资源与环境系,山东菏泽274015

出　　处：《长江科学院院报》2016年第1期111-114,共4页Journal of Changjiang River Scientific Research Institute

基　　金：国家自然科学基金重点项目(50834004);山东省自然科学基金项目(ZR2011AL014)

摘　　要：由于岩石在高矿压条件下具有较大塑性变形,深部软岩巷道变形与破坏特征较为复杂,巷道的稳定性控制变得非常棘手,因此选择合适的巷道支护方法尤其重要。以具有上述地质赋存条件的邢村煤矿为工程背景,根据支护理论分析与数值分析,基于FLAC3D有限差分软件,系统研究了支护参数对于围岩变形、应力和塑性区分布的影响规律。结果表明:对于软岩破碎巷道,采用复合支护方法比传统单一支护,具有显著支护效果,更能有效控制巷道变形,从而为控制软岩破碎巷道变形提供一定的研究基础。Due to big plastic deformation of rock under high geostress,roadway deformation and failure characteristics of deep soft rock roadway are complex,and stability control of the roadway becomes very difficult. In light of this,it is important to choose proper support method for the roadway. Xingcun coal mine,with similar geological storage,is taken as research background. According to theoretical analysis and numerical analysis of support,based on the finite difference software FLAC^3D,we systematically study the influence of support parameters on rock deformation,stress distribution and plastic zone distribution. The results show that,as for the soft crushed rock roadway,composite support method is superior to traditional method with single support. We can effectively control roadway deformation and obtain obvious support effect by using the composite method. Finally,the research can be reference for deformation control of soft crushed rock roadway in similar projects.

关 键 词：软岩破碎巷道 高应力复合支护 围岩变形 塑性区 邢村煤矿 

分 类 号：TD353[矿业工程—矿井建设]