某矿山多层采空区群稳定性的FLAC^(3D)数值分析  

FLAC^(3D)-based Numerical Analysis for Stability of Multilayer Goafs in a Mine

作　　者：吴启红[1] 唐佳[2,3] 杨有莲[1] 

机构地区：[1]成都大学城乡建设学院,四川成都610106 [2]中南大学地球科学与信息物理学院,湖南长沙410083 [3]中国水电工程顾问集团中南勘测设计研究院,湖南长沙410014

出　　处：《矿冶工程》2011年第6期13-16,20,共5页Mining and Metallurgical Engineering

基　　金：国家自然科学基金(50878212);成都大学人才引进基金;成都大学校基金

摘　　要：为评价某矿山采空区群的稳定性,应用有限元FLAC3D软件对该矿体及复杂多层采空区群三维数值模型进行了模拟分析。选取相邻空间区间顶板厚度小于30 m和顶板跨度较大的空区群作为研究对象,对多层采空区的应力分布和塑性区(结构塑性强度破坏方面)以及采空区顶板中点位移监控(变形控制方面)进行了研究,并根据研究结果对矿体所有采空区进行了稳定性分类,为后续采空区治理提供了可靠的依据。In order to evaluate the stability of goals in a mine, simulation analysis was conducted using finite element software FLAC^3D for three-dimensional model of the orebody and muhilayer gods. Those goafs in neighbor area with roof thickness less than 30 m but bigger roof span were taken as the object in the study, the stress distribution, plastic zone and displacement monitoring of roof midpoint were all studied. Then all goafs were classified in terms of stability based on the study results, which can provide a reliable basis for the following treatment of gods.

关 键 词：采空区 FLAC3D 应力 塑性区 位移 稳定性 

分 类 号：TD325[矿业工程—矿井建设]