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.
出处
《煤矿开采》
北大核心
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)
关键词
软岩井筒
支护
数值模拟
shaft in soft rock
supporting
numerical simulation
