高压输电线路中输电塔塔基的模型制作及其承载性能的实验研究  

Model making of transmission tower foundation in high voltage transmission lines and experimental study of its load bearing properties

作　　者：杨泰华[1,2] 张华[2] 贺怀建[2] 俞晓[1] 

机构地区：[1]武汉科技大学城市建设学院,湖北武汉430070 [2]中国科学院武汉岩土力学研究所,湖北武汉430071

出　　处：《武汉科技大学学报》2011年第2期119-122,共4页Journal of Wuhan University of Science and Technology

基　　金：湖北省教育厅科研资助项目(2003A001);武汉科技大学校青年科研基金资助项目(2006XY8)

摘　　要：针对葛洲坝水利枢纽至武昌500kV输电线路(葛武线)输电塔塔基改造中出现的问题,以ZB41型杆塔为原型,利用室内制作的模型装置对大板基础和大板+微型桩(板桩)基础两种形式的杆塔塔基承载性能进行了实验研究。结果表明,大板基础和板桩基础的地基土竖向承载力均达到设计要求,但大板基础的抗水平承载性能不能满足设计要求;板桩基础抗水平承载力是大板基础抗水平承载力的3倍多;板桩基础方案达到了葛武线输电塔塔基改造的设计要求。To tackle the problems encountered in the renovation project of 500 kilovolt transmission tower foundation in the transmission lines from the hydro junction of Gezhouba Dam to Wuchang,the tower of ZB41 was taken as the prototype and an experimental model device was made in the laboratory to test the two foundation types： the big board foundation and the sheet pile（big-board-plus-micropile） foundation.The test results show that for the two schemes of foundations,the vertical bearing capacity of the foundation soil can satisfy the design requirements,and the horizontal bearing capacity can also meet the design requirements with the sheet pile foundation,but cannot with the big board foundation.The resistance horizontal load properties with the sheet pile foundation are three times more than those with the big board foundation.The scheme of the sheet pile foundation meets the design requirements of the renovation project.

关 键 词：输电线路 输电塔 塔基 模型实验 

分 类 号：TU413.6[建筑科学—岩土工程]