山区中小河流清滩料筑堤技术研究与应用

Research on the Embankment Technology for Materials of Small and Medium-sized Rivers in Mountain Areas

传统筑堤材料为黏性土,通常认为无黏性土不适合筑堤。山区中小河流清滩料具有粒径大、分布广的特点,其主要成分是混合卵石、砂、黏土的碎石土,与常规土相比,成分较复杂。若作为筑堤材料,需要解决渗流、边坡稳定及冲刷等问题。通过室内和现场试验对清滩料的物理及力学特性进行研究,并进行分析计算。通过研究提出清滩料采取合适的工程措施后,可作为筑堤材料之一使用,并在广东省韶关地区中小河流治理工程中得以成功应用,可为类似工程提供参考。

The traditional embankment material is a cohesive soil, and it is generally considered that the non-cohesive soil is not suitable for embankment. The small and medium-sized rivers in the mountain area with large particle size, wide distribution characteristics, the main component is mixed pebbles, sand and clay, compared with conventional soil, the composition is more complex. If the material as an embankment, need to solve the seepage, slope stability and erosion and other issues. In this paper, the physical and mechanical properties of the beach are studied by indoor and field tests, and the calculation is carried out. It can be used as one of the materials of embankment and can be successfully applied in the small and medium-sized river treatment projects in Shaoguan area of Guangdong Province, which can provide a reference for similar projects.