###
DOI:
有色金属(矿山部分):2023,75(5):36-42
本文二维码信息
码上扫一扫!
基于有限元的上下盘开采对矿山边坡稳定性的影响研究
景 明1,黄亚军1,吕志强2,徐啸川3
((1.中国建筑土木建设有限公司,北京100070; 2.中交一公局第一工程有限公司,北京102205; 3.中国地质大学(武汉)工程学院,武汉430074))
Study on the influence of mining on the stability of mine slope based on finite element
JING Ming1, HUANG Yajun1, LYU Zhiqiang2, XU Xiaochuan3
((1. China Construction Civil Engineering Co., Ltd., Beijing 100070, China; 2. First Engineering Co., Ltd., Affiliated to CCCC First Highway Engineering Group, Beijing 102205, China; 3.School of Engineering, China University of Geosciences (Wuhan), Wuhan 430074, China))
摘要
图/表
参考文献
相似文献
本文已被:浏览 134次   下载 162
投稿时间:2023-02-21    修订日期:2023-03-03
中文摘要: 为研究上下盘开采对矿山边坡稳定性的影响,基于有限元方法,利用Midas GTS软件建立相应模型,通过分析不同开挖位置、不同断层形态下边坡的力学特征,得出其力学响应机制,主要得到以下结论:断层倾角发生改变时,随着工作面的推进,因上下盘开采而导致的边坡沉陷值整体变化不大,但倾角的增大会导致其更易活化;断层倾角发生改变时,上盘最大下沉处位置更靠近断层方向,而下盘最大下沉处位置更靠近采空区方向;上盘开采时,随着断层倾角的增大,开采前后边坡安全系数均出现减小,下盘则与之相反;上盘开采时随着断距的增大,边坡安全系数均出现增大的现象,下盘开采时随着断距的增大,边坡安全系数均出现减小的现象。创新点在于考虑断层对矿山开采过程边坡稳定性的影响,该研究为今后复杂地质条件下矿山开挖所导致的边坡问题提供参考。
Abstract:In order to study the influence of hanging wall and footwall mining on slope stability, based on the finite element method, this paper uses Midas GTS software to establish the corresponding model. By analyzing the mechanical response mechanism of slope under the same excavation position and different fault forms, the main conclusions are as follows: When the fault dip angle changes, with the advancement of the working face, the hanging wall and footwall mining lead to little change in the subsidence value of the slope, but the increase of the dip angle will lead to easier activation; When the fault dip angle changes, the maximum subsidence position of the hanging wall is closer to the fault direction, while the maximum subsidence position of the footwall is closer to the goaf direction; When the hanging wall is mined, with the increase of fault dip angle, the slope safety factor before and after mining decreases, while the footwall is opposite; When the hanging wall is mined, the slope safety factor increases with the increase of the fault distance. When the footwall is mined, the slope safety factor decreases with the increase of the fault distance. The innovation of this paper is to consider the influence of faults on slope stability during mining. This study provides a reference for slope problems caused by mine excavation under complex geological conditions in the future.
文章编号:     中图分类号:    文献标志码:
基金项目:国家自然科学基金资助项目(51674099)
引用文本:
景 明,黄亚军,吕志强,徐啸川.基于有限元的上下盘开采对矿山边坡稳定性的影响研究[J].有色金属(矿山部分),2023,75(5):36-42.
JING Ming,HUANG Yajun,LYU Zhiqiang,XU Xiaochuan.Study on the influence of mining on the stability of mine slope based on finite element[J].NONFERROUS METALS(Mining Section),2023,75(5):36-42.

我们一直在努力打
造,精品期刊,传
播学术成果

全国咨询服务热线
86-10-63299757

杂志信息

期刊简介

相关下载

联系我们

电话:010-63299757

传真:010-63299754

QQ:XXXXXXX

Email:ysjsks@sina.com;ysjsks@163.com

邮编:100160

地址:北京市南四环西路188号总部基地十八区23号楼

关注微信公众号