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本文结合工程实例论述了膨胀土的危害和滑坡的形态特征,指出了用常规土力学方法判别膨胀土边坡稳定性的缺陷,阐明了在高膨胀土边坡设计中心必须重视干湿循环和内部裂隙破坏作用,通过良好的坡体保护和加固措施提高稳定性的观点。并对中小型水利工程中常用的坡脚反压平台、换土、污工及混凝土支挡以及抗滑桩四种膨胀土滑坡防治方法进行了分析比较。
In this paper, the damage of expansive soil and the landslide morphological characteristics are discussed with the engineering examples. The defects of the expansive soil slope stability by using the conventional soil mechanics method are pointed out. It is pointed out that in the design center of high expansive soil slope, the wetting and drying cycle and the internal Fracture damage, through the protection of slope and reinforcement measures to improve the stability of the point of view. This paper also analyzes and compares the common methods of slope foot pressure platform, soil replacement, soil and concrete support, and anti-slide pile landslip prevention and control methods commonly used in small and medium scale water conservancy projects.