软岩井筒联合支护体系适应性的数值分析  

Numerical Simulation of Combined Supporting System for Shaft in Soft-rock

作　　者：陶连金[1] 许汇海 张兴文 孙玉辉[1] 

机构地区：[1]北京工业大学地下工程与岩土研究所,北京100124 [2]内蒙古鄂尔多斯市昊华精煤有限责任公司高家梁煤矿,内蒙古鄂尔多斯017000

出　　处：《煤矿开采》2011年第3期84-88,共5页Coal Mining Technology

基　　金：国家自然科学基金资助项目(40972189);北京市自然科学基金重点项目(KZ200910005009)

摘　　要：用FLAC3D对高家梁软岩井筒进行了开挖支护施工过程的数值模拟,分析了井筒开挖、支护过程中围岩应力分布、井筒围岩变形、围岩塑性区范围,并基于此给出二次支护的时机。通过与现场监测的对比,证明了井筒支护方案的有效性。Applying FLAC3D to simulating excavating and supporting procedure of shaft in soft rock in Gaojialiang Colliery,stress distribution,deformation and plastic zone range of surrounding rock during shaft excavating and supporting was analyzed.Based on simulation result,secondary supporting time was presented.Compared with on-the-spot observation data,shaft supporting projection was proved to be effective.

关 键 词：软岩井筒 支护 数值模拟 

分 类 号：TD352[矿业工程—矿井建设]