新型超高挡土墙梳式连续墙基础

A new combed-type diaphragm wall base for ultrahigh retaining wall

传统形式的超高挡土墙无论在软土还是岩石地基上建造都难以克服稳定性不佳、承载力不足或经济性较差的弊端。提出一种新型梳式连续墙基础用作挡土墙复合地基,通过初步分析其工作机理和受力状况,结果表明,该结构形式兼具刚性和柔性基础的优点,可用于山区深堑或港区陆域的边坡支护。

It is difficult to overcome the defects of poor stability, high hearing capacity requirement and bad economy when building a conventional ultrahigh retaining wall on soft or rocky foundation. A new scheme of combed-type diaphragm wall base which takes diaphragm wall as part of retaining wall＇s compound foundation was put forward, and a preliminary analysis of working mechanism and loading conditions was carried in this paper. The results show that this base has the advantage of both rigidity and flexibility, and can be applied in the support works of upland chasm or port land.