摘要
对威远县境内上部为厚层砂岩,下部为泥岩、炭质页岩的三叠系须家河组缓倾岩层地段,因河流切割或人工开挖产生的滑坡进行了二元结构岩层顺层滑动原因分析,总结顺层滑动规律,对于这种二元结构的顺层滑坡启动角度建议为8度,在建设过程中,选线时就应避开顺层地段,否则应采取挡护措施或实施顺层清方予以处理。本文的分析为类似地区工程选线和勘察提供参考。
In relation to the flat dipping rock section of Triassic Xujiahe Formation in Weiyuan County, which is made up of thick sand stone at the upper part, and mud stone and carbonaceous shale at the lower part, the landslide caused by stream incision or manual excavation was studied to the extent that the genesis of bedding slipping of the rock formation with dual structure was analyzed, the law of the bedding slipping generalized, and the triggering angle of the bedding landslide suggested to be 8 degrees. When in construction, bedding section should be avoided early in route selection, otherwise protection measures or cleanup should be conducted. The result may be referred to in route selection and investigation for projects in similar regions.
出处
《路基工程》
2013年第5期166-170,共5页
Subgrade Engineering
关键词
须家河组
二元结构
缓倾
顺层滑坡
Xujiahe Formation
dual structure
flat dipping
bedding landslide
