文献类型：期刊文献

中文题名：考虑层间剪切作用的挡墙主动土压力分析

英文题名：ANALYSIS OF ACTIVE EARTH PRESSURE CONSIDERING INTERLAMINAR SHEAR ACTION

作者：夏唐代[1,2];程康[1,2];黄睿[3];单华峰[4];梁荣柱[5]

机构：[1]浙江大学软弱土与环境土工教育部重点实验室;[2]浙江大学滨海和城市岩土工程研究中心;[3]绍兴文理学院岩石力学与地质灾害实验中心;[4]台州学院滨海环境与岩土工程研究所;[5]中国地质大学(武汉)工程学院

年份：2017

卷号：47

期号：10

起止页码：98

中文期刊名：工业建筑

外文期刊名：Industrial Construction

收录：CSTPCD、、北大核心2014、CSCD_E2017_2018、北大核心、CSCD

基金：国家自然科学基金项目(51378463)

语种：中文

中文关键词：无黏性填土;平动模式;土拱效应;抛物线形拱;层间剪切作用;水平单元分析

外文关键词：cohesionless backfill; translation mode; soil arching effect; parabolic arch; interlaminar shear action;horizontal unit analysis

中文摘要：以墙后为无黏性填土的刚性挡墙为研究对象,首先基于库仑滑裂面,假定墙后土拱为抛物线形拱,分别建立平动模式下水平微单元平均竖向应力、层间剪切力与主动土压力的定量关系,以考虑水平微单元层间剪切作用的影响,在此基础上由静力平衡方程推导出主动土压力解析解。然后将求解的主动土压力值与前人的研究成果进行对比,验证该方法的合理性。最后,对该解析解进行参数分析,发现墙土摩擦角与填土内摩擦角的比值是影响层间剪切作用强弱的主要因素。该方法能考虑挡墙后土体中应力偏转现象以及水平微单元体层间剪切作用,较传统土压力计算方法,能够更真实地反映土体中的应力状态。

外文摘要：A rigid retaining wall with cohesionless backfill was considered as research object. Firstly,the principal stress arch was assumed to be parabolic based on the Coulomb＇s slip surface. Then,the quantitative relationships between average vertical stress,the interlaminar shear stress of soil differential element and the active earth pressure were established. In consideration of the influence of interlaminar shear,the analytical solution of active earth pressure were derived through equation of static equilibrium. The accuracy of the proposed formulation was estimated by comparing with other studies. Finally,the parameters in the analytical solution were analyzed and the results indicated that the ratio of angle of internal friction between wall and backfill was the dominant impact on the interlaminar shear.Compared with the conventional calculation method,the stress deflection and the interlaminar shear action of horizontal differential units of soil behind retaining wall were taken into account. The stress state more close to the field condition could be obtained through the method.