基于FLAC 3D的动压巷道应力场演化特征数值模拟分析  

Numerical Simulation Analysis of Stress Field Evolution Characteristics of Dynamic Pressure Roadway Based on FLAC 3D

作　　者：李业旭 LI Yexu(School of Mining Engineering,Anhui University of Science&Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学矿业工程学院,安徽淮南232001

出　　处：《现代信息科技》2023年第4期157-162,共6页Modern Information Technology

摘　　要：在煤矿开采中,工作面推进引起的围岩应力场变化是导致巷道破坏、围岩变形的重要因素之一,分析动压巷道应力场演化对安全生产有着重要意义。根据工程实例,对受采动影响的巷道使用FLAC3D软件进行了数值模拟,并从应力场、位移场演化以及塑性区分布特征进行了分析,通过实地监测的数据对数值模拟分析进行了验证,由此针对安全生产给出了上山保护煤柱尺寸应在100 m的建议。In coal mining, the change of surrounding rock stress field caused by working face advance is one of the important factors leading to roadway failure and surrounding rock deformation, and making an analysis on dynamic pressure roadway stress field evolution is of great significance for safe production. According to the engineering example, the numerical simulation of a roadway affected by mining is carried out by FLAC 3D software, and the characteristics of stress field, displacement field evolution and distribution of plastic zone are analyzed. The numerical simulation analysis is verified by the on-site monitoring data. Therefore, it is suggested that the size of the uphill protective coal pillar should be 100 m for safe production.

关 键 词：工作面 围岩变形 应力场 数值模拟 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]