220 kV大呼高转角塔不同形式灌注桩基础设计及经济对比分析  

Design and Economic Analysis of Different Forms of Cast-in-place Pile Foundation for 220 kV High Angle Tower

作　　者：李文强 任泽久 房长亮 王帅 李昊 查传明 LI Wenqiang;REN Zejiu;FANG Changliang;WANG Shuai;LI Hao;ZHA Chuanming(State Grid Jilin Electric Power Co.,Ltd.Economic Technological Research Institute,Changchun 130062,China;State Grid Xinjiang Electric Power Company Economic Research Institute,Wulumuqi 830000,China)

机构地区：[1]国网吉林省电力有限公司经济技术研究院,长春130062 [2]国网新疆电力公司经济技术研究院,乌鲁木齐830000

出　　处：《吉林电力》2019年第5期43-46,52,共5页Jilin Electric Power

摘　　要：新建220 kV线路使用了大呼高转角塔,该塔基础作用力较大,地下水位高,适合采用桩基础。根据工程条件,设计了不同形式的桩基础,对材料运输、土方开挖、基础浇筑、灌注成桩造价组成部分进行经济对比分析,并对不同承台布置形式的多桩基础进行抗拔承载力和造价分析。结果表明:单桩基础应为首选设计方案;对于多桩基础,承台旋转角度对基础承载力和经济性有一定影响。The high tower is applied in a new 220 kV transmission line, the foundation force of the tower is large and the groundwater level is high, so it is suitable for using pile foundation. According to the engineering condition, pile foundations with different forms of piles are designed and analyzed from economic comparison of material transportation, excavation, foundation grouting and pile perfusion. The uplift bearing capacity and cost of muti-piles foundation with different forms of caps are also analyzed.The results show that: the single pile foundation should be the first choice in design;for the muti-piles foundation, the rotation angle of the pile cap has certain influence on the bearing capacity and economy of the pile foundation.

关 键 词：220 KV电压等级 转角塔 灌注桩基础 抗拔承载力 经济分析 

分 类 号：TU473.14[建筑科学—结构工程]