摘要
针对桩承式路堤工作性状比较复杂、对路堤—桩—土之间共同工作机理的认识还不是十分清楚的问题,建立了考虑土—桩—路堤变形和应力协调的平衡方程,分析了三者协调工作时路堤、桩、土的荷载传递特性,获得了路堤的土拱效应、桩土荷载分担、桩和土的沉降等结果。将本文的方法与弹塑性有限元计算结果进行了对比,验证了该计算模型的合理性,同时应用所提出的方法,对杭甬高速公路拓宽工程进行了分析。
Based on the complexity of working properties on pile-supported embankment,and unclearness of common working mechanism among embankment,pile and soil,authors establish the balance equation considering stress-deformation coordination of soil-pile-embankment,analyze the load transfer property of them and get the results of soil arching,loading sharing of soil and pile,the settlement of pile and soil.Contrasted with elastic-plastic finite element,the method is verificated reasonable.Using this method,authors analyze the widen engineering of Hangyong freeway.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2005年第3期7-13,共7页
China Journal of Highway and Transport
基金
国家自然科学基金项目(50308026)
关键词
道路工程
软土地基
理论分析
路堤
土拱效应
road engineering
soft ground
theoretical analysis
embankment
soil arching effect
