齐大山铁矿东帮边坡空间形态优化
Optimization of the spatial shape of the east slope in Qidashan Iron Mine
梁冰 1于金江 1李广贺1
作者信息
- 1. 辽宁工程技术大学 矿业学院,辽宁 阜新 123000
- 折叠
摘要
针对齐大山铁矿东帮边坡空间形态优化问题,在分析边坡工程地质条件的基础上,将极限平衡法与数值模拟法相结合,评价原设计到界边坡稳定性,优化设计到界边坡的形态参数,探讨追踪距离对边坡三维稳定性的影响规律.研究结果表明:采用逐水平优化方法设计的到界边坡角为46°,每阶段的边坡二维稳定性系数均满足安全储备系数要求;边坡的三维稳定性系数与追踪距离呈负相关指数函数关系,当追踪距离为50 m时,齐大山铁矿东帮到界边坡角可设计为48°,整体边坡角提高了2°,经济效益显著.
Abstract
Aiming at the problem of optimising the spatial morphology of the east side of Qidashan iron mine,based on the analysis of the engineering geological conditions of the slope,the limit equilibrium method and numerical simulation method are combined to evaluate the stability of the original design boundary slope.The shape parameters of the boundary slope are optimized and the influence of tracking distance on the three-dimensional stability of the slope is explored.The research results indicate that the boundary slope angle designed using the level by level optimization method is 46°,and the two-dimensional stability coefficient of the slope in each stage meets the requirements of safety reserve coefficient;the three-dimensional stability coefficient of the slope has a negative correlation exponential function relationship with the tracking distance.When the tracking distance is 50 m,the slope angle from the east side of Qidashan Iron Mine to the boundary can be designed as 48°,and the overall slope angle has been increased by 2°,which has significant economic benefits.
关键词
露天铁矿/三维效应/空间形态/边坡稳定性/追踪距离Key words
open-pit iron mine/three-dimensional effect/spatial shape/slope stability/tracking distance引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据