砂土液化中桩基负摩阻力的多折线模型分析  

Analysis of Multiple Broken Line Model of Negative-Friction Resistance of Pile Foundation in Sand Liquefaction

作　　者：田北平[1] 钟小兵[1] 刘文方[1] 

机构地区：[1]四川理工学院建筑工程学院,四川自贡643000

出　　处：《四川理工学院学报（自然科学版）》2009年第1期110-112,共3页Journal of Sichuan University of Science & Engineering(Natural Science Edition)

摘　　要：文章基于砂土液化特征,论证桩侧土影响半径对于负摩阻力的影响;利用荷载传递的思想,提出多折线模型,推导不同阶段负摩阻力的计算方法并进行比较,提出了分析计算液化负摩阻力的思路。Based on the characteriatics of sand liquefaction, this paper demonstrates the effect of the radius of influence of pile-side soil on negative-friction resistance. According to the idea of load transfer, this paper also puts forward a multiple broken line model. It deduces and compares methods of calculation of negative-friction resistance at different stages. Also this paper puts forward the thread of analyzing and calculating negative-friction resistance of liquefaction.

关 键 词：液化 负摩阻力 多折线模型 

分 类 号：TU91[建筑科学—建筑理论]