换土垫层法在架空配电线路台阶式基础中的应用

The Application of Soil Replacement Cushion Method in Benched Foundation for Overhead Distribution Lines

针对配电线路杆塔基础常因地质条件、基础空间等因素限制无法实施的问题,分析了换土垫层和换填法在架空配电线路现浇台阶式基础中的应用,通过分析发现:利用换土垫层法可以有效提高地基承载力,减小配电网杆塔混凝土台阶式基础的尺寸,从而降低施工难度,并能够有效降低工程造价,具有可观的经济效益。

When constructing the tower foundation of distribution lines,due to geological condi-tions, basic space and other factors, the construction is unable to be implemented sometimes. Inthis paper, the application of soil replacement cushion method in benched foundation of overheaddistribution lines has been analyzed, it's been found that subgrade bearing capacity could be im-proved effectively by use of soil replacement cushion method, the size of concrete benched founda-tion of power tower could be decreased and difficulty of construction could be reduced as well. Andthis could exploit its economic benefits.