摘要
全金属装配式基础具有自重轻、施工便捷、质量可靠和造价低等优点,可广泛应用于沙漠地区输电线路。首次采用模型试验、真型试验和数值仿真等相结合手段,对沙漠地区砂土地基的金属装配式基础的上拔承载性能进行针对性研究。基于PIV技术揭露的装配式基础的上拔破裂面形态,采用土重法简化计算上拔承载力。结合试验与数值仿真的结果,给出了土重法上拔角的推荐取值。
The metal assembly foundation has advantages of light weight, convenient construction, reliable quality and low cost, and can be widely used in transmission lines in desert areas. A combination of model tests, real tests, and numerical simulations were used to conduct targeted research on the uplift bearing performance of metal assembly foundations on sandy soil foundations in desert areas firstly. Based on the uplift fracture surface shape of the assembly foundation from the PIV technology, earth weight method is used to calculate the uplift capacity. Combined with the results of experiment and numerical simulation, the recommended value of uplift angle of earth weight method is given.
作者
董义义
冯衡
曾二贤
李强
肖飞
张程程
DONG Yiyi;FENG Heng;ZENG Erxian;LI Qiang;XIAO Fei;ZHANG Chengcheng(China Electric Power Planning&Engineering Institute Co.,Ltd.,Beijing 100011,China;Central Southern China Electric Power Design Institute,Wuhan 430013,China;State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan 430071,China)
出处
《建筑结构》
CSCD
北大核心
2021年第S02期1598-1603,共6页
Building Structure
基金
中国能源建设集团规划设计有限公司科研项目(DG1-T03-2018)
关键词
输电线路
装配式基础
模型试验
数值仿真
上拔角
transmission lines
metal assembly foundations
model tests
numerical simulations
uplift capacity
