Numerical simulation of phenomenon on zonal disintegration in deep underground mining in case of unsupported roadway

3rd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Han, Fengshan^1 ; Wu, Xinli^2 ; Li, Xia^3 ; Zhu, Dekang^4

Research Center for Numerical Tests on Material Failure, Dalian University, Dalian

116622, China^1

College of Engineering, Pennsylvania State University, PA, United States^2

Civil and Architecture Engineering College, Dalian University, Dalian

116622, China^3

China Construction Channel Construction Development Co. LTD, Fuzhou

350000, China^4

关键词: Formation process;    Maximum principal stress;    Natural disasters;    Three-dimensional model;    Underground engineering;    Underground mining;    Zonal disintegration;    Zonal disintegration phenomenons;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/113/1/012084/pdf
DOI  :  10.1088/1755-1315/113/1/012084

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Zonal disintegration phenomenon was found in deep mining roadway surrounding rock. It seriously affects the safety of mining and underground engineering and it may lead to the occurrence of natural disasters. in deep mining roadway surrounding rock, tectonic stress in deep mining roadway rock mass, horizontal stress is much greater than the vertical stress, When the direction of maximum principal stress is parallel to the axis of the roadway in deep mining, this is the main reasons for Zonal disintegration phenomenon. Using ABAQUS software to numerical simulation of the three-dimensional model of roadway rupture formation process systematically, and the study shows that when The Direction of maximum main stress in deep underground mining is along the roadway axial direction, Zonal disintegration phenomenon in deep underground mining is successfully reproduced by our numerical simulation..numerical simulation shows that using ABAQUA simulation can reproduce Zonal disintegration phenomenon and the formation process of damage of surrounding rock can be reproduced. which have important engineering practical significance.