东南大学学报（自然科学版）2016，Vol.46Issue(2)：392-399,8.DOI:10.3969/j.issn.1001-0505.2016.02.026
土体侧移作用下被动桩受力变形的简化解析计算
Simplified analytical calculation for forced deformation of passive pile subjected to lateral soil displacement
摘要
Abstract
In order to analyze the mechanical characteristics of the passive pile adjacent to the sur-charge load or in an unstable slope, according to the pile-soil lateral interaction mechanism, the pas-sive pile is divided into three sections including the free section, the passive section and the active section.The distribution patterns of the additional passive load subjected to the lateral soil displace-ment are assumed as a quadratic function.Based on the Euler-Bernouli beam theory and the Winkler foundation model, the general calculation model of the passive pile subjected to the lateral soil dis-placement is derived.Then, the differential equations of each sections of the passive pile are drawn out.According to the continuity conditions on the interface of each pile section and the boundary conditions at the top and the bottom of the pile, the analytical solution of the pile response is de-duced.Finally, the reliability of this analytical solution is verified by analysis of examples.And the main influence factors of the response of the passive pile are analyzed.The results show that with the increase of the passive load due to the lateral soil displacement and the decrease of the ground soil re-sistance, both the bend and the lateral displacement of the pile increase.关键词
被动桩/土体侧移/桩土相互作用/土压力法/解析解Key words
passive pile/lateral soil displacement/pile-soil interaction/pressure-based method/an-alytical solution分类
土木建筑引用本文复制引用
张浩,石名磊,郭院成..土体侧移作用下被动桩受力变形的简化解析计算[J].东南大学学报（自然科学版）,2016,46(2):392-399,8.基金项目
国家自然科学基金资助项目（41272132）、河南省高等学校重点科研资助项目（16A560009）． （）
