中国地质灾害与防治学报2024，Vol.35Issue(3)：43-51,9.DOI:10.16031/j.cnki.issn.1003-8035.202302010
重庆某高速公路危岩崩塌变形特征及治理措施
Deformation characteristics and treatment measures of dangerous rock collapse in an expressway in Chongqing
陈晓刚 1李红卫 1张乾翼1
作者信息
- 1. 中铁西北科学研究院有限公司,甘肃兰州 730000
- 折叠
摘要
Abstract
In this paper,five dangerous rockfall collapses at K1515 of the Shanghai-Chengdu expressway are taken as the research object.Through investigation,statistics,and analysis,the engineering geological conditions and developmental deformation characteristics of the dangerous rockfall collapse area are clarified.The research results show that:(1)the failure modes of dangerous rock masses W1 and W2 are misbreaking and cracking,the destruction mode of W3-1 dangerous rock mass is dumping,the destruction mode of W3-2 dangerous rock mass is sliding,and the destruction mode of W4 and W5 is bulging;(2)the stability coefficient of W1 and W2 is 1.12 and 1.61 respectively,which are in basically stable～stable state;the stability coefficient of dumping failure of W3-1 is 0.41 and in unstable state;the stability coefficient of sliding failure of W3-2 in W 3-2 is greater than 1.35 and in stable state;under rainstorm condition;the stability coefficient of bulging deformation of W4 and W5 is 1.25 and 1.15 respectively,which are in basically stable state;(3)The authors summarize the governance strategy of"reduce risk,minimize disturbance,ensure safe stability and feasible technology",and adopt comprehensive remidiation measures of"embedding concrete retaining wall at the toe of slope+local active SNS network protection+prestressed anchor protection",and the treatment effect was good.It can provide reliable reference basis for the treatment measures of dangerous rock collapse.关键词
危岩/变形特性/稳定性/治理思路/治理措施Key words
dangerous rock/deformation characteristics/stability/governance ideas/governance measures分类
天文与地球科学引用本文复制引用
陈晓刚,李红卫,张乾翼..重庆某高速公路危岩崩塌变形特征及治理措施[J].中国地质灾害与防治学报,2024,35(3):43-51,9.
