三昌采石场复杂采空区群稳定性数值模拟研究  

Numerical Simulation of Complicated Goaf Group Stability during its Exploitation in Sanchang Quarry

作　　者：任青云[1] 杨仕教[1] 杨月平[1] 陶干强[1] 王正庆[1] 

机构地区：[1]南华大学核资源与核燃料工程学院,湖南衡阳421001

出　　处：《南华大学学报（自然科学版）》2011年第4期41-45,56,共6页Journal of University of South China：Science and Technology

基　　金：国家自然科学基金资助项目(50974076);湖南省自然科学基金资助项目(07JJ3090)

摘　　要：三昌采石场采空区具有规模大、数量多、空间关系复杂等特点,急需开展复杂采空区群稳定性课题的研究.在对采空区群及其开采环境现场调研的基础上,进行了现场点荷载试验与室内单轴抗拉、抗压强度实验,获得岩体力学参数.采用三维有限元方法对三昌采石场进行数值模拟,模拟结果表明:三昌采石场采空区稳定性偏低,部分空区顶板出现拉应力集中,有可能出现顶板冒落.根据分析结果,提出了相应安全对策,为矿山的安全生产起到指导作用.The goaf of San chang quarry has some characteristics of large scale and quantity,complex spatial relationships etc,so we to need to carry out a research about stability of complex goaf group.On the basis of investigating the goaf group and the mining environment,we performed the field point load test and indoor uniaxial tensile and compressive strength experiment,and obtained rock mechanics parameters.We simulated the complicated goaf group stability in San chang quarry by three-dimensional finite element method.The results are as follows：the stability of goaf in San chang quarry is low,part of roof on mined-out area appear concentrated tensile stress,and roof falling may happen.According to the results,we propose appropriate safety measures,which can play a guiding role in mine safety production.

关 键 词：石灰石矿 采空区群 稳定性 有限元数值模拟 

分 类 号：TU457[建筑科学—岩土工程]