非饱和膨胀土边坡破坏机理与稳定性分析

South-to-North Water Transfers and Water Science & Technology(2008)

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Abstract
膨胀土具有胀缩性、裂隙性、超固结性,其工程性质特殊,即使很缓的边坡也可能失稳,南水北调中线工程膨胀岩土渠段长达340km,渠坡的处理技术、分析方法与长期稳定性是关键问题。分析了非饱和膨胀土边坡的破坏特点、破坏机理与影响因素,并对处理措施的作用机理与模拟方法进行了分析,在此基础上探讨了非饱和膨胀土边坡稳定性的分析方法,并对南水北调中线工程新乡段膨胀岩土渠坡进行了分析,得到了初步成果。
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Key words
South-to-North Water Diversion Project,unsaturated expansive soils,stability analysis
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