基于SMP准则的巷道松动圈计算及数值模拟研究  

Calculation and Numerical Simulation of Loosen Rock Circle in Roadway Based on SMP Criterion

作　　者：王建锋[1] 李伟利[1] 

机构地区：[1]煤炭工业合肥设计研究院,安徽合肥230041

出　　处：《安徽理工大学学报（自然科学版）》2013年第1期62-66,共5页Journal of Anhui University of Science and Technology:Natural Science

摘　　要：为了研究巷道开挖后巷道周边应力分布特征及松动圈半径的大小,根据SMP准则探讨了松动圈形成的力学机理,提出了松动圈半径的计算公式,并应用数值模拟的方法得出了巷道围岩应力、位移、破坏的分布特征。结果表明理论分析与数值模拟的结果是一致的,对井下支护设计具有借鉴意义。In order to study distribution characteristic of stress in surrounding rocks of a roadway and radius of loosen circle, mechanical mechanism of loosen circle formation was discussed on the basis of SMP criterion and loosen circle radius calculation formula proposed. Stress in surrounding rocks, displacement and characteristics of failure distribution were obtained by numeric simulation. The results showed that the results by theoretical a- nalysis are consistent with by numeric simulation, which provides a reference to support design for deep mines.

关 键 词：围岩 巷道支护 松动圈 

分 类 号：TD313.1[矿业工程—矿井建设]