矿山巷道地压形成机理及分布规律的研究  

Ground Pressure Formation Mechanism of Mining Tunnels and Research on Stress Distribution

作　　者：饶运章[1] 吴国兴[1] 罗欢[1] 

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000

出　　处：《铜业工程》2010年第1期16-20,共5页Copper Engineering

摘　　要：通过对国内外学者研究巷道地压问题论述的分析,总结出矿山巷道地压形成的一般机理,并运用数值分析软件和有限差分的基本原理,对半圆拱形巷道在一定的侧压系数条件下开挖前后围岩应力状态进行数值模拟与分析,总结出半圆拱形巷道开挖后围岩应力的分布规律。Through analysis on dissertation of tunnel ground pressure issues by scholars at home and abroad, the article summarizes the forming mechanism of mining tunnel ground pressure. Numerical simulation and analysis are made on surrounding rock stress status of the semicircle arch tunnel before and after excavation under the condition of the some lateral pressure coefficients by numerical analysis software and basic principle of the finite difference. The distribution rules of surrounding rock stress are illustrated after excavation of semicircle arch tunnels.

关 键 词：巷道地压 数值模拟 有限差分 侧压系数 围岩应力 

分 类 号：TD3[矿业工程—矿井建设]