国内外规范桩墩基础抗冻拔稳定验算安全度设置水平初探  

A Comparative Study of Safety Level of Codes for Stability against Frost Heaving of Pile Foundation and Pier Foundation at Home and Abroad

作　　者：曾凡振[1] 

机构地区：[1]武汉大学土木建筑工程学院,湖北武汉430072

出　　处：《中国农村水利水电》2011年第3期82-85,共4页China Rural Water and Hydropower

摘　　要：根据国内外相关规范季节冻胀区桩墩基础抗冻拔稳定验算的设计规定,以DL/T 5082-1998《水工建筑物抗冰冻设计规范》规定的不同级别冻胀土总切向冻胀力标准值为基准,从相当安全系数的角度,对国内外相关规范关于季节冻胀区桩墩基础抗冻拔稳定的设计方法和相应的安全度设置水平进行了计算分析和比较,获得了国内外相关规范季节冻胀区桩墩基础抗冻拔稳定安全度设置水平的定量数据,并对我国DL/T 5082-1998安全度设置水平提出了若干修改建议,可供规范修订时参考。According to the present design code for stability against frost heaving of pile foundation and pier foundation in seasonal frost areas at home and abroad,this paper makes a calculating and comparative analysis of stability against frost heaving of pile foundation and pier foundation in seasonal frost areas at home and abroad based on DL/T 5082-1998 ＂Design Specifications of Hydraulic Structures against Ice and Freezing Action＂ total tangential frost heave force standard value of different levels frost heaving soil,on the aspect of comprehensive safety factor.Quantitative data of the differences in the safety level of stability against frost heaving of pile foundation and pier foundation in seasonal frost areas at home and abroad have been found.This paper finally gives some suggestions to enhance the safety level of DL/T 5082-1998 and relevant conclusions can be drawn for future code revision.

关 键 词：桩墩基础 抗冻拔稳定 安全度设置水平 相当安全系数 

分 类 号：TV672.3[水利工程—水利水电工程] TV691