基于GM模型的地下采区地应力反演分析  

Inversion Analysis on Ground Stress in Underground Mining Area Based on GM Model

作　　者：曹文龙[1] 王雪彦 CAO Wenlong;WANG Xueyan(Hebei Jiaotong Vocational and Technical College,Shijiazhuang,Hebei 050035,China;Shijiazhuang University,Shijiazhuang,Hebei 050000,China)

机构地区：[1]河北交通职业技术学院,河北石家庄050035 [2]石家庄学院,河北石家庄050000

出　　处：《矿业研究与开发》2019年第8期87-91,共5页Mining Research and Development

基　　金：河北省交通工程结构力学行为演变与控制重点实验室开放课题(STKF201709)

摘　　要：针对某铁矿无法直接得出准确初始应力场的问题,在考虑自重应力与构造应力的综合作用下,构建GM有限元数学回归模型,建立两者的多种线性组合回归方程,并根据现场地应力实测值进行采区地应力的反演计算分析,得出了较为准确的地下采区地应力状态,可作为数值模拟计算的基础,为后续的正常开采提供了重要的参数依据。Aiming at the problem that the initial stress field cannot be directly obtained in an iron mine,the GM finite element mathematical regression model was constructed by considering the comprehensive action of self-weight stress and structural stress,and multiple linear combination regression equations of the both stress were established.According to the measured insitu stress,the inversion calculation and analysis of the in-situ stress in the mining area were carried out,and the relatively accurate in-situ stress state in the underground mining area was obtained,which can be used as the basis of numerical simulation calculation and provided an important parameter basis for the subsequent normal mining.

关 键 词：地应力 GM模型 FLAC3D 数值模拟 

分 类 号：TD853.391[矿业工程—金属矿开采]