重庆五里坡危岩稳定性分析
Stability Analysis of Hazardous Rock in Wulipo Nature Reserue of Chongqing
刘明 1吕康平 2向庆刚 3郑东 1陈梦海2
作者信息
- 1. 四川省地质工程勘察院集团有限公司,四川 成都 400074
- 2. 重庆交通大学,重庆 400074
- 3. 重庆地质矿产研究院,重庆 401120
- 折叠
摘要
[目的]通过危岩稳定性的综合评价结果,分析地质条件对危岩稳定性的影响.[方法]依托重庆五里坡保护区某项目,通过地质测绘、槽探、钻探等勘测成果,在分析保护区内5处危岩基本特征的基础上,首先采用地质类比法和赤平投影法对危岩稳定性进行定性分析,其次采用极限平衡法对危岩在不同工况下的稳定性进行定量分析.[结果]结果表明:所有危岩在天然状态下处于稳定状态,在暴雨和地震工况下处于欠稳定和不稳定状态.[结论]上硬下软的逆向坡结构会降低危岩的稳定性,应对危岩所在区域内裂缝进行监测.
Abstract
[Purposes]Through the comprehensive evaluation results of the stability of hazardous rock,the influence of geological conditions on the stability of hazardous rock is analyzed.[Methods]Based on the Chongqing Wulipo Conservation Area Education Center project,this paper analyzes the basic charac-teristics of five hazardous rocks in the reserve through geological surveying,trough exploration,drilling and other survey results.Based on the analysis of the basic characteristics of 5 hazardous rocks in the re-serve,the stability of the rocks is qualitatively analyzed by geological analogy method and stereographic projection method,and then the stability of the rocks under different working conditions is quantitatively analyzed by limit equilibrium method.[Findings]The results show that all hazardous rocks are stable in their natural state,and are understable or unstable in heavy rain and earthquake conditions.[Conclu-sions]Since the inverse slope structure with hard upper and soft lower will reduce the stability of hazard-ous rocks,so it is necessary to monitor the cracks in the area where hazardous rocks are located.
关键词
危岩/斜坡/稳定性/勘测区Key words
hazardous rock/slopes/stability/survey area引用本文复制引用
出版年
2024
NETL
NSTL
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