中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

Journal of Chongqing Jiaotong University(Natural Science) ›› 2001, Vol. 20 ›› Issue (3): 57-61.

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Analysis for additional stress in pavement due to thawing settlement of permafrost subgrade

CAO Dong wei,HU Chang shun   

  1. College of Highway Engineering,Changan University,Xian 710064,China
  • Online:2001-09-20 Published:2016-07-12

多年冻土区路基融沉变形的附加应力分析

曹东伟,胡长顺   

  1. 长安大学公路工程学院 陕西西安710064

Abstract: In the permafrost regions,the thawing settlement in the subgrade may produce an additional stress in the pavement structure.In this paper the finite element method and analytical method are adopted to analyse the additional stress,and two kinds of calculation results are compared.The formula is deduced out to calculate the additional stress and the influence of the pavements parameter are analyzed.The proposals are put forward for the design of subgrade and pavement in permafrost region.

Key words: permafrost, thawing settlement, additional stress, FEM, design

摘要: 使用有限元法和解析法分析了多年冻土地区路基融沉引起的路面附加应力,将两种方法的计算结果进行了对比,给出了附加应力计算的解析表达式,分析了路面结构参数对附加应力的影响,对多年冻土地区路基路面设计提出了建议

关键词: 多年冻土, 路基融沉, 附加应力, 有限元法, 解析解

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