某500kV变电站架构人字柱钻孔灌注桩设计

Design of Bored Pile for a Steel A-Frame Column in a Substation

某500k V变电站站址场地内粉土层、粉质粘土层压缩性高、承载力较低,粉细砂层埋深大,且存在液化。综合考虑场地地层条件、施工设备、项目工期及工程造价等技术经济因素,站内主要建构筑物基础拟采用钻孔灌注桩基础,本文以站内500k V架构人字柱为例,按规范对钻孔灌注桩进行了设计,以期对类似工程起借鉴之意义。

A 500kV substation project,where the silt and silty clay formations have low bearing capacity with high compressibility.Silty-fine sand formations are deep with liquefaction. Considering the factors of stratum conditions, constructuction equipments, project period and project cost,the bored pile is designed according to the related standard.It may serve as a reference for the similar others.