某矿采空区数值模拟研究与稳定性分析  

Numerical Simulation and Stability Analysis of Mined-out Area in a mine

作　　者：张洋[1] 李占金[1] 李示波[1] 张艳博[1] 

机构地区：[1]河北联合大学矿业工程学院,河北矿业开发与安全技术重点实验室,河北唐山市063009

出　　处：《矿业研究与开发》2013年第4期59-61,共3页Mining Research and Development

基　　金：国家自然科学基金项目(51174071);河北省自然科学基金项目(E2012209047);河北省高等学校科学技术研究重点项目(ZH2012072)

摘　　要：空场采矿法滞留的采空区已成为河北某铁矿山的严重安全隐患之一。针对该矿采空区数量多、体积大的特点,在现场调查和室内力学实验研究的基础上,利用计算机数值模拟技术,采用RFPA2D软件对采空区围岩的破坏过程进行模拟计算,并结合现场的声发射地压监测数据对采空区的稳定性进行评价,确定目前该矿采空区稳定性良好。Mined-out area produced by mining activities has be- come one of the major serious hidden dangers in some local iron mines, Hebei province.According to the characteristics of mined- out areas such as large quantity and big volume in the mine, on the basis of the field investigation and indoor mechanics experi- mental study, the simulation of failure process of mined-out are- as＂ surrounding rock was carried out with the software RFPA2D. Combined with the data obtained by in-situ acoustic emission monitoring, the stability evaluation of the mined-out areas was made ,the results showed that the stability of mined-out areas of this mine is good at present.

关 键 词：采空区 稳定性分析 地压监测 声发射 数值模拟 

分 类 号：TD853.32[矿业工程—金属矿开采]