桩基抗冻拔稳定及桩长计算方法研究  

Study on Computing Methods for Stability against Freezing Uplift and Pile Length of Pile Foundation

作　　者：于兴华 张丽伟 滕凯 

机构地区：[1]黑龙江省水利水电集团冲填工程有限公司,哈尔滨市150000 [2]齐齐哈尔市河道管理处,齐齐哈尔市161006 [3]黑龙江省三江工程建设局,哈尔滨市150000

出　　处：《西北水电》2018年第1期46-49,共4页Northwest Hydropower

基　　金：齐齐哈尔市社会发展科技攻关项目:季节性冻土区桩基工程安全设计优化研究(SFGG201659)

摘　　要：针对《水工建筑物抗冰冻设计规范》中桩基抗冻拔稳定验算及桩长设计计算公式在实际工程应用中存在的变量关系相对独立、计算过程繁复等问题,通过对桩基在暖土条件下桩长设计计算公式的推导,获得了桩基在冻土条件下开展抗冻拔稳定验算及桩长计算可直接引用的已知中间参数,建立了桩基在2种运行条件下的变量联系及参数的共享关系,避免了实际工作中繁琐的重复计算问题,提高了设计工作效率,便于实际工程推广应用。Concerning verification on stability against freezing uplift of and formula for pile length computation of the pile foundation in Design Code For Hydraulic Structures Against Ice And Freezing Action in engineering application, its wlriable relationship is relatively in- dependent, and computation is complicated. From derivation of formula for computing pile length of pile foundation under warm soil, the given intermediate parameters which can be applied directly for verification on stability against freezing uplift and pile length computation of the pile foundation in are obtained. The sharing relationship of variable connection and parameters of the pile foundation at two operat- ing conditions is built avoiding the complicated computation in practice and improving work efficiency. It is suitable to generalize in engi- neering practice.

关 键 词：桩基设计 抗冻拔稳定 计算方法 研究 

分 类 号：TU473.1[建筑科学—结构工程]