某建筑用花岗岩矿边坡稳定性分析及最优边坡角研究
Slope stability analysis and optimal slope angle study of a construction granite mine
肖群飞 1温经林 2董峰 3朱强 4刘晋 3卢新爱1
作者信息
- 1. 中安国泰(北京)科技发展有限公司,北京 102209
- 2. 中安国泰(北京)科技发展有限公司,北京 102209;中国安全生产科学研究院,北京 100012
- 3. 宜春时代新能源矿业有限公司,江西 宜春 330600
- 4. 苏州中材非金属矿工业设计研究院有限公司,江苏 苏州 215000
- 折叠
摘要
本文以某建筑用花岗岩矿边坡为研究对象,根据矿山开采现状、工程地质条件选取边坡稳定性计算剖面,通过三轴压缩强度试验获取岩体的物理力学参数,采用M-P法和Bishop在自重+地下水+爆破震动荷载工况计算现状边坡及设计边坡的稳定性系数,最终边坡角以向下取1°和2°进行优化.计算结果显示:该矿现状边坡局部稳定性系数为不满足要求,该矿采场边坡整体边坡角可从47°优化成47.5°,优化后稳定性系数满足要求.
Abstract
Take a construction granite mine slope as the research object,according to the mining status quo,engineering geological conditions to select the slope stability calculation profile,through the triaxial compression strength test to obtain the physical and mechanical parameters of the rock body,using the M-P method and Bishop in the self-weight+groundwater+blasting vibration loading conditions to calculate the stability coefficients of the status slopes and the design of slopes,and ultimately the final slope angle to take 1° down and 2° for the optimiza-tion of the slope angle.Calculation results show that:the local stability coefficient of the current slope of the mine does not meet the requirements,and the overall slope angle of the quarry slope can be optimized from 47° to 47.5°,and the optimized stability coefficient meets the requirements.
关键词
采场边坡/顺层结构/稳定性分析/最终边坡角优化Key words
slopes of the quarry/paraxial structure/stabilization analysis/final slope angle optimization引用本文复制引用
基金项目
中国安全生产科学研究院基本科研业务费专项资金项目(2024JBKY20)
出版年
2024
NETL
NSTL
万方数据