爆破与地震作用下矿岩质边坡稳定性数值模拟研究  

Numerical Simulation Study on the Stability of Ore Rock Slope under Blasting and Earthquake

作　　者：陈亮[1] 韩映炜 Chen Liang;Han Yingwei

机构地区：[1]中国建筑材料工业地质勘查中心江苏总队,江苏南京210000 [2]苏州中材非金属矿工业设计研究院有限公司,江苏苏州215151

出　　处：《江苏建材》2025年第1期58-60,共3页Jiangsu Building Materials

摘　　要：采用Geo-Studio仿真模拟软件,分别考虑爆破振动与地震作用,对东至县柯家村矿岩质边坡稳定性进行计算分析,并对台阶坡面角进行计算校核。采用FLAC3D软件模拟研究了典型剖面水平位移与最大剪切应变增量。研究结果表明,终了边坡安全系数在设定的三种工况下均能满足规范要求,设计的最终边坡总体处于稳定状态。基于FLAC3D强度折减法计算得到的安全系数也满足稳定性系数要求,潜在滑移面与Geo-Studio极限平衡法计算得到的最危险滑移面基本吻合;终了边坡剖面最危险滑出位置位于边坡坡脚位置,易出现局部破坏。The Geo-Studio simulation software was used to calculate and analyze the stability of the rock slope of Kejia Village,Dongzhi County,and the slope angle of the step was calculated and checked by considering the blasting vibration and seismic action respectively.FLAC3D software was used to simulate and study the horizontal displacement and maximum shear strain increment of the typical profile.The results show that the final slope safety factor can meet the requirements of the specification under the three set working conditions,and the final slope of the design is generally in a stable state.The safety factor calculated based on the FLAC3D strength reduction method also meets the requirements of the stability factor,and the potential slip surface is basically consistent with the most dangerous slip surface calculated by the Geo-Studio limit equilibrium method.At the end,the most dangerous sliding position of the slope profile is located at the foot of the slope,which is prone to local failure.

关 键 词：爆破振动 地震 岩质边坡 稳定性 数值模拟 

分 类 号：P633.2[天文地球—地质矿产勘探]