摘要
以斜坡地形中的掏挖类原状土基础为例,基于抗拔承载力等效原则,结合斜坡地形原状土基础抗拔承载力计算公式,推导了降基面抬高值、边坡减小量与埋深增加量的对应关系式,提出了斜坡地形杆塔基础边坡最小保护距离的计算公式,为工程技术人员快速判定三者间的对应关系提供了一种理论判别标准.
Based on the equivalent principle of ultimate uplift bearing capacity to excavated foundation in transmission lines and the computation method of ultimate uplift bearing capacity for sloped foundation in slope terrain,the relationship between foundation surface height and buried depth increase are derived.A computation formula between slope reduction and buried depth increase is proposed.Also the minimum slope distance to tower foundation in slope terrain is summarized by the code and experience.The research results provide an evaluation criterion among the relationship of surface height,slope reduction and buried depth increase for engineers.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2009年第S1期277-280,共4页
Engineering Journal of Wuhan University
基金
国家电网公司科技项目:斜坡地形杆塔基础工程技术研究
关键词
输电线路
斜坡地形
掏挖类基础
基面
最小边坡保护距离
transmission line
slope terrain
excavated foundation
foundation surface
minimum slope distance
