煤田地质与勘探2017，Vol.45Issue(2)：96-100,5.DOI:10.3969/j.issn.1001-1986.2017.02.017
成仁高速红层分布区开挖边坡变形特征及机制
Deformation characteristics and mechanism of an excavation slope in red bed area of Chengren highway
钟雨奕 1苏海 2潘皇宋1
作者信息
- 1. 地质灾害防治与地质环境保护国家重点实验室(成都理工大学),四川成都 610059
- 2. 四川蜀通岩土工程公司,四川成都 610018
- 折叠
摘要
Abstract
The special engineering properties of the red beds which distribute extensively in Sichuan basin often result in serious geological disasters. Through the characteristic analysis of deformation and destruction of the slope in the connection line between Wengong town and Chengren Highway, failure mechanism of the slope under the influence of excavation and precipitation is concluded as creep-sliding and fracturing. Further by FLAC3D nu-merical analysis, the deformation and failure mechanism of slope were verified. The results point out that cracking damage at the trailing edge as well as the shear slip failure at the front of landslide were caused by the excavation unloading and rainfall. For this type of slope, reinforcement measures should be taken in time in the part above the cutting slope after excavation to prevent rainfall infiltration from softening the soil and intensifying deformation and failure of the landslide.关键词
红层/路堑边坡/变形特征/破坏机制Key words
red beds/cut slope/deformation characteristics/failure mechanism分类
天文与地球科学引用本文复制引用
钟雨奕,苏海,潘皇宋..成仁高速红层分布区开挖边坡变形特征及机制[J].煤田地质与勘探,2017,45(2):96-100,5.
