盐湖地区输电线路斜柱式基础承载能力试验  

Experiment on bearing capacity of transmission line inclined plane foundations in salt lake area

作　　者：满银[1] 谭青海 童武 高伟斌 郑卫锋[1] 

机构地区：[1]中国电力科学研究院,北京100192 [2]青海省电力设计院,青海西宁810008

出　　处：《武汉大学学报（工学版）》2013年第3期349-353,共5页Engineering Journal of Wuhan University

基　　金：国家电网公司科技项目:盐湖地区铁塔基础及地基处理技术研究(编号:63-L0131)

摘　　要：针对盐湖地区750kV同塔双回输电线路工程的大荷载作用条件和软弱地基特殊地质条件,开展了盐渍土的土体物理力学参数试验和斜柱式基础在竖向上拔、上拔与水平联合、下压与水平联合作用工况下的承载能力现场原位试验研究,得到了斜柱式基础的极限上拔承载力、极限下压承载力和盐渍土的上拔角,验证了盐湖地区输电线路斜柱式基础设计选型的合理性和可靠性,为其在工程应用中提供了参考和依据.Large loads and special geological conditions of soft ground were encountered in salt lake for the 750 kV double circuit tower transmission line project.Experiments on physico-mechanical mechanical parameters of the site soil were carried out.Meanwhile,in-situ tests on bearing capacities of the selected inclined plane foundations were conducted,including single uplift loading condition,uplift and horizontal loading condition as well as compressive and horizontal loading condition.Ultimate uplift bearing capacity and ultimate compressive bearing capacity of the inclined plane foundations as well as the saline soil uplift angle were obtained.As a result,the rationality and reliability of design selection for the transmission line inclined plane foundations in salt lake area was verified at last.Research results could provide reference and basis for its engineering application.

关 键 词：盐湖地区 输电线路 斜柱式基础 原位试验 承载能力 

分 类 号：TU47[建筑科学—结构工程]