刘增利   

Senior Engineer
Supervisor of Master's Candidates

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Paper Publications

Title of Paper:寒冷地区路基冻胀的计算模型和方法研究

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Date of Publication:2011-02-28

Journal:铁道科学与工程学报

Included Journals:PKU、ISTIC、CSCD

Volume:08

Issue:1

Page Number:34-38

ISSN No.:1672-7029

Key Words:冻土路基;冻胀;桥连模型;计算方法

Abstract:从路基冻胀机理出发,把冻胀过程的路基主体划分为3个区段:冻土区,冻结缘区和未冻土区,充分考虑冻结缘区的桥连作用,把3区段连在一起构成了桥连式冻胀模型.根据各区段的本质特征和主导作用,建立了相应的控制方程,并用连接条件构成一个完整的求解体系,采用半解析数值法对路基冻胀可进行定量计算.通过实例计算证明.结果与实例值吻合较好,说明本文模型和方法是有效的.

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