摘要
采用应力、位移手段,并结合开采过程中底部结构岩体破裂裂隙宏观现象统计情况,综合对普朗铜矿矿区回采过程中底部结构稳定性规律进行研究,得出该地质条件下拉底推进过程对底部结构应力影响范围为推进线前后20m左右,同时基于应力与微震监测数据,得出底部结构开采过程中稳定性受断层影响较大,底部结构断层揭露线附近30m易诱发较大的应力集中,该范围内的岩体需要有针对性地进行二次支护。
Based on the statistics of stress,displacement means and the macroscopic phenomena of rock fracture in the bottom of the mining process,the stability of the bottom structure in the mining process of prong copper mine is studied comprehensively.Under this geological condition,the influence of the propulsion process on the bottom structure stress is about 20 m around the propulsion line.At the same time,based on the stress and microseismic monitoring data,it is concluded that the stability of the bottom structure is greatly affected by the fault,and the large stress concentration is easily induced near the 30 m near the fault line of the bottom structure,and the rock mass in this range needs two reinforcement support.
作者
彭张
王平
冯兴隆
蔡永顺
刘华武
袁本胜
赵冰峰
PENG Zhang;WANG Ping;FENG Xing-long;CAI Yong-shun;LIU Hua-wu;YUAN Ben-sheng;ZHAO Bing-feng(Yunnan Diqing Nonferrous Metal Co.,Ltd.,Shangri-La 674400,Yunnan,China;BGRIMM Technology Group,Beijing 102628,China;Beijing Key Laboratory of Nonferrous Intelligent Mining Technology,Beijing 102628,China)
出处
《矿冶》
CAS
2019年第3期27-30,34,共5页
Mining And Metallurgy
基金
“十三五”国家重点研发计划项目(2017YFC0602904,2017YFC0804402)
关键词
微震监测
应力
位移
底部结构
microseismic monitoring
stress
displacement
bottom structure
作者简介
第一作者:彭张,助理工程师,采矿工程专业,主要从事矿山采矿工艺和岩石力学等方面的研究工作。
