膨胀土路堤设计中应着重考虑的若干问题

SOME FACTORS SHOULD BE CONSIDERED ON THE DESIGN OF EXPANSIVE SOIL EMBANKMENT

摘要: 膨胀土作为一种特殊土,其工程性质较差,在膨胀土地区修建高速公路时,路堤的安全设计应有其特殊性。本文主要从土性质、最佳含水量与压实度控制、干湿循环作用的影响和不均匀沉降的防治等几个方面讨论了如何做好路堤的设计。

Abstract: Expansive soil is a kind of special soil. For its poor engineering property, some factors should be considered when it is used to construct expressway. In this paper, the problems of the design of embankment are discussed from soil property, the optimum water content, controlling of the degree of compaction, the influence of witting-drying cycle and the prevention of asymmetrical settlement.