摘要
地下开采形成的采空区而引起的灾害已成为地下矿山主要灾害之一。本文从非煤矿山采空区顶板(连续性结构岩体层状顶板、非连续性碎裂结构岩体)和矿柱两个关键影响要素对采空区失稳机理进行了研究,同时结合工程实例,采用FLAC3D软件对采空区稳定性进行了数值模拟计算与分析。结果表明:采空区围岩受力及变形导致的失稳状况与理论计算相吻合,并在工程上得到了很好的验证和应用。
The disaster caused by mined-out areas formed by underground mining is one of the main disasters in underground mines.This paper studies the instability mechanism of mined-out areas from two key factors,the roof（the layered roof of continuity structure rock and the discrete cataclastic structure rock）and the ore pillar.Combining with engineering projects,the paper applies FLAC3 Dsoftware to numerical simulation and analyzes the instability situation caused by the stress and deformation of the surrounding rock of mined-out areas.The results are well validated and applied in the engineering.
出处
《安全与环境工程》
CAS
北大核心
2014年第6期29-35,共7页
Safety and Environmental Engineering
基金
湖南省教育厅项目(07D050-2007)
关键词
非煤矿山
采空区
失稳机理
稳定性分析
矿柱
碎裂结构岩体
non-coal mine
mined-out area
instability mechanism
stability analysis
ore pillar
cataclastic structure rock
