新疆戈壁地区输电线路铁塔掏挖基础的设计与应用  

Design and Application of Dredged Foundation for Transmission Tower in Xinjiang Gobi Area

作　　者：王运华[1] 丁士君[2] 刘智超[1] 童瑞铭[2] 董天元[1] 

机构地区：[1]新疆电力设计院,乌鲁木齐市830001 [2]中国电力科学研究院输变电工程研究所,北京市100192

出　　处：《电力建设》2012年第12期17-22,共6页Electric Power Construction

基　　金：国家电网公司基建新技术推广应用项目(JXYM-2011-A-X-11)

摘　　要：戈壁碎石土是一种特殊土体,为充分发挥其工程力学特性,输电线路基础工程在该类地区通常采用掏挖基础形式。针对新疆戈壁土地区铁塔掏挖基础的选型和设计问题,根据掏挖基础和戈壁碎石土地基的特点,分析了多个碎石土场地掏挖基础的载荷试验结果,研究了该基础在新疆戈壁地区的适用性,提出了基础稳定性的分析方法及设计条件,并在新疆地区依托工程中进行了设计应用,取得了良好的经济和社会效益。Gravel soil is one of the special ground in Xinjiang Gobi area.In order to give full play to its good engineering mechanics properties,dredged foundation is usually used for transmission line foundation engineering in this area.Aimed at the selection and design problems of dredged foundation for transmission tower in Xinjiang Gobi area,the foundation＇s applicability in this area is studied through the analysis of the load test results of dredged foundation in several gravel soil sites,based on the characteristics of dredged foundation and gravel soil in Gobi area.Stability analysis methods and design conditions of dredged foundation are proposed,which have been applied in the supported project of Xinjiang area and have achieved good economic and social benefits.The design and application of dredged foundation show that the foundation is suitable for the transmission line projects at different voltage level in Xinjiang,which can play good shear behavior of gravel soil foundation,thus having a good prospect of popularization and application.

关 键 词：戈壁地区 碎石土 输电线路 掏挖基础 载荷试验 

分 类 号：TM753[电气工程—电力系统及自动化]