深埋巷道分区破裂过程的数值模拟  

Numerical simulation of zonal disintegration proccss in deep roadway

作　　者：唐礼忠[1] 范若楠 宋徉霖 TANG Li-zhong;FAN Ruo-nan;SONG Yang-lin(School of Resources and Safety Engineering,Central South University,Changsha 410083,China)

机构地区：[1]中南大学资源与安全工程学院,长沙410083

出　　处：《工程爆破》2020年第4期1-7,共7页Engineering Blasting

基　　金：国家自然科学基金资助项目(51474250、51674287)。

摘　　要：为研究深埋巷道分区破裂化现象产生,更好地指导深部矿产的开采,基于ABAQUS有限元软件,利用冬瓜山铜矿岩石性质参数,结合Mohr-Coulomb本构模型,采用分阶段模拟的方法,对深埋巷道周边围岩的破坏过程进行了三维数值模拟,并将数值模拟结果与冬瓜山铜矿实测破坏情况进行了对比。模拟结果可以看出分区破裂产生的严重程度不仅与岩石的力学属性及地应力大小有关,也与开挖隧道的长度以及开挖后经过的时间有关。模拟结果可以较好地再现分区破裂化现象,并揭示其形成过程,具有良好的工程实践意义。In order to study the occurrence of zonal disintegration in deep rodadway and better guide the further mining of deeper minerals,based on the ABAQUS finite element software, using the rock property parameters of Dongguashan Copper Mine and combining with Mohr-Coulomb constitutive model, the three-dimensional numerical simulation of the surrounding rock failure process around the deep buried roadway is carried out with the method of staged simulation. The numerical simulation results were compared with the measured damage of Dongguashan Copper Mine. The simulation results can better reproduce the phenomenon of zonal disintegration and reveal its formation process, which has good engineering practice significance.

关 键 词：分区破裂化 有限元法 数值模拟 矿山深埋巷道 高地应力 

分 类 号：TD313[矿业工程—矿井建设]