摘要
采用三维有限单元法对开滦东欢坨煤矿-230北回风巷管棚支护工程实例进行模拟分析,主要对管棚支护下岩层的变形和安全性进行了分析,分析表明管棚支护技术结合注浆能改善松软破碎岩层的物理力学性质,在巷道拟开挖轮廓上部形成具有较强承载能力的加强带。
It takes three-dimensional finite element method to make a simulation analysis of pipe roof support project of -230 Beihuifeng lane of Kailuan Donghuantuo coal mine. It mainly makes an analysis of the deformation and safety of rock layer under pipe roof support and the analysis shows that the combination of pipe roof support and grouting can improve the mechanics property of soft and broken rock layer and the excavation of upper outline in lane can form a strengthened belt which has.a strong loading capacity.
出处
《山西建筑》
2009年第24期103-104,共2页
Shanxi Architecture
基金
煤炭科学研究总院青年基金项目(项目编号:2006QN17)
关键词
三维有限单元法
管棚支护
数值分析
three-dimensional finite element method, pipe roof support, numerical analysis
