湿陷性土引起的单桩负摩阻力理论预测模型  

Theoretical Model on Negative Skin Friction of Single Pile Caused by Collapsible

作　　者：管小青[1] 刘春玲[2] 赵法锁[3] 赵杰华[1] 

机构地区：[1]贵州省交通规划勘察设计研究院,贵阳550001 [2]中国国土资源航空物探遥感中心,北京100083 [3]长安大学地测学院,西安710054

出　　处：《交通科技》2009年第4期23-25,共3页Transportation Science & Technology

摘　　要：利用Randolph的桩土相互作用模型,建立了单层和多层湿陷性土引起的单桩桩周负摩阻力的预测模型,推导了单桩负摩阻力的预测公式。利用此公式,只需知道土体的剪切模量和静载荷试桩桩顶的沉降,便可以方便地对湿陷性土引起的单桩负摩阻力的分布进行预测。Based on interaction model between soil and single pile presented by Randolph, an approach for forecasting negative skin friction of single pile caused by collapsible soil was presented, and the formula for forecasting the negative skin friction was reached. It is convenient to apply the formula to predicting the distribution of negative skin friction of single pile caused by collapsible soil after shear modulus of collapse soil and crest displacement of static load test pile.

关 键 词：湿陷性土 单桩 负摩阻力 

分 类 号：TU473.1[建筑科学—结构工程] O211.67[建筑科学—土工工程]