摘要
在贵州地区的工程建设中,遇到石炭系大塘阶黑色软岩产生特殊的工程病害:边坡开挖后岩石风化迅速、短时间内崩解破碎,发生边坡失稳;其风化残坡积土在缓坡地带遇水形成特殊的"坡麓相斜坡软土"。本文通过分析研究,认为岩石中含有的特殊矿物是其发生工程病害的根本原因,提出了针对性工程措施。病害过程为:岩石暴露后发生一系列氧化反应及聚合反应,导致边坡破坏;岩石风化物堆积在缓坡地带,在水的作用下形成的斜坡软土。
During the engineering construction in Guizhou province, the black weak rock of Datang formation in Carboniferous system makes the special engineering diseases： the rock slacks quickly and broke up in short time after the opening of slope which results in the slope failure, and the weathered slope soil becomes the special piedmont soft soil when it meet the water. It is thought that the special minerals in the rock are the basic reasons that the engineering disease occur, and the engineering measures are put forward. The disease process is that the rock takes place a series of oxidation and aggregation reactions after the rock exposure which causes the slope failure.
出处
《工程勘察》
CSCD
北大核心
2007年第2期38-40,共3页
Geotechnical Investigation & Surveying
关键词
黑色软岩
工程病害
边坡失稳
斜坡软土
black weak rock
engineering disease
slope failure
soft soil on slope
