摘要
本文以龙寺CIV-1边坡为例,对结构面从数据采集、分析、空间分布模型、结构特征等方面进行了分析研究,得到了控制性结构面的分布、产状及空间组合关系等;并基于此,对危岩体的破坏模式进行了初判,然后利用极限平衡理论和UDEC软件分别对不同工况下不同破坏模式的危岩体进行稳定性分析。结果表明各工况对边坡稳定性影响程度为组合工况>暴雨工况>地震工况,且理论计算与数值分析的结果均验证了利用结构面空间组合关系对危岩体稳定性的初判,最后提出了基于结构面特征划分坡体结构区的加固优化方案,为以后类似工程治理提供借鉴。
Structural planes often control the stability of rock slope directly,so how to obtain,analyze and use the information of structural planes is very important.Taking Longsi CIV-1 slope as an example,the structural planes are analyzed and studied from data collection,analysis,spatial distribution model,structural characteristics and other aspects,and the distribution,attitude and spatial combination of the controlling structural planes are obtained.Based on this,the failure modes of dangerous rock body are preliminarily judged,and then the stability of dangerous rock body with different failure modes is analyzed by using limit equilibrium theory and UDEC software respectively.The results show that the influence degree of each working condition on slope stability is as follows:Combined condition>rainstorm condition>earthquake condition,and the results of theoretical calculation and numerical analysis verify the preliminary judgment of the stability of dangerous rock body by using the spatial combination relation of structural plane;Finally,the reinforcement and optimization scheme of dividing slope structure area based on the characteristics of the structural plane is proposed,which provides some reference for similar engineering treatment in the future.
作者
师华鹏
占建琴
石盼
农丽婷
SHI Huapeng;ZHAN Jianqin;SHI Pan;NONG Liting
出处
《中国矿山工程》
2024年第4期6-14,共9页
China Mine Engineering
基金
广西重点研发计划(桂科AB22035024)
广西重点研发计划(桂科AB22080024)。
关键词
控制性结构面
空间组合关系
破坏模式
稳定性分析
加固优化方案
controlling structural plane
spatial combinatorial relation
failure mode
stability analysis
reinforcement optimization scheme
