摘要
膨胀性岩土在我国分布广泛,主要由吸水膨胀、失水干缩的亲水性矿物质组成,受季节性气候变化影响强烈,对工程建设造成的危害大。通过对西北地区已建成的高速公路工程膨胀性岩土路段的路基及边坡的现状调查及分析,总结归纳合理可行的工程措施,指导今后同地质条件公路工程路基与边坡的设计施工。
Expansive rock and soil are widely distributed in China,which are mainly composed of hydrophilic minerals with water swelling and drying shrinkage.It is sensitive to seasonal climate change and has all kinds of hazards to engineering construction.Based on the investigation and analysis of the status quo of subgrade and slope of expansive rock section of Highway Engineering in Northwest China,the paper summarized reasonable and feasible engineering measures to guide the design and construction of subgrade and slope of highway engineering under the same geological conditions in the future.
作者
安宝平
AN Baoping(Gansu Transportation Planning Survey and Design Institute Co.,Ltd,Lanzhou 730000,China)
关键词
膨胀性岩土
水性矿物
路基与边坡
expansive rock soil
water-based minerals
roadbed and side slope
