摘要
铜矿峪铜矿采用自然崩落法开采,随着向深部开采原岩应力不断增加,为改善拉底过程中的应力环境,保证底部结构的稳定,采用FLAC3D对拉底过程中前进式和后拉底两种方式进行了模拟分析。结果表明采用前进式拉底时底部结构所在区域的应力环境具有明显的改善。
Tongkuangyu copper mine lies in yuanqu county,shanxi province,the mining method is panel caving,the in-situ stress of mine become bigger and bigger with the depth increases,in order to ameliorate the stress environment,and maintain the stability of bottom structure,author simulated the stress changes in process of advance undercutting and post undercutting by using three-dimensional finite difference code(FLAC3D)in this paper.The results show that the stress environment in area of bottom structure is a significant drop when using advance undercutting.
作者
夏长念
段文权
范文录
XIA Changnian;DUAN Wenquan;FAN Wenlu
出处
《中国矿山工程》
2020年第3期1-4,共4页
China Mine Engineering
关键词
自然崩落法
底部结构
前进式拉底
后拉底
panel caving
bottom structure
advance undercutting
post undercutting
