输电线路新型复合式基础试验及计算方法探讨  

Experiment and Calculation Method Study on a New Composite Foundation for Transmission Lines Engineering

作　　者：鞠彦忠[1] 孙鹏[1] 张显峰[2] 刘洪义[2] 

机构地区：[1]东北电力大学建筑工程学院,吉林吉林132012 [2]中国电力工程顾问集团东北电力设计院,吉林长春130021

出　　处：《水电能源科学》2012年第6期169-171,150,共4页Water Resources and Power

摘　　要：针对地表由厚1.5～2.5m粘土层覆盖的丘陵及山区500kV输电线路地基,单独采用传统的掏挖基础或岩石基础均不符合经济环保的要求,结合掏挖基础和岩石基础的优点,提出了新型复合式基础,即掏挖锚杆复合式基础,并通过试验研究了其承载力和变形特征。结果表明,该新型复合式基础的承载力能满足设计要求;同时,根据试验结果与架空送电线路基础设计技术规定,提出了掏挖锚杆复合式基础的计算方法。The geological condition of 500 kV transmission lines in hilly and mountainous areas is generally covered by clay layer on the surface with depth of 1.5-2.5m.In this area,the use of digging foundations or rock anchor foundations alone will not meet economical requirement and environmental protection.Combined the advantages of digging foundations and rock anchor foundations,a new composite foundation is designed in this paper,which is digging-anchor composite foundation.The bearing capacity and deformation characteristics of digging-anchor composite foundation are investigated through experiment.The results show that digging-anchor composite foundation can satisfy the requirements of bearing capacity.According to the test results and technical specification for designing foundation of overhead transmission lines,the design calculation formulae of digging-anchor composite foundation is proposed.

关 键 词：输电线路 掏挖锚杆复合式基础 环境保护 试验研究 设计方法 

分 类 号：TU753[建筑科学—建筑技术科学] TV470[水利工程—水工结构工程]