As most of the mines in our country enter into the deep mining stage,the incidence,frequency and damage degree of ground pressure activities have increased significantly,and in the process of mining,the peripheral rock is highly susceptible to landslides due to disturbing stress,and in serious cases,dynamic disaster phenomena such as rockbursts will occur,which poses a greater safety risk to the underground operators.This paper takes Xiadian Gold Mine as the engineering background,on the basis of analysing the technical conditions of deep mining,takes the mining ground pressure of deep quarry of Xiadian Gold Mine as the research object,uses the numerical simulation method,establishes the overall quarry and the typical quarry model,and researches the distribution laws of the quarry mining ground pressure within the ranges of-620 m to-1 120 m and-850 m to-1 020 m respectively.It reveals the characteristics of stress field,displacement change and plastic zone distribution in the process of stratified filling mining,which provides a scientific basis for the safe production of Xiadian Gold Mine.
关键词
金属矿山/采动地压/数值模拟/地应力/深部开采
Key words
metal mine/mining ground pressure/numerical simulation/ground stress/deep mining
维普
万方数据