摘要
工程中对成层土地基进行固结分析时,一般对地基的固结系数进行加权平均,简化为简单的单一土层进行计算。而对连徐高速公路沉降观测资料整理的时候,发现土层的固结时间比简化计算的时间少了很多。本文通过成层土地基固结系数不同简化方法进行比较,得到与理论计算相近似的固结系数的简化计算方法,然后根据Asaoka方法对成层土地基的固结系数进行反演,得到了对工程计算和分析有益的结论。
For analysis of consolidation of laminated soil,the systems are usually simplified as one layer with weighted average consolidation coefficient.But it is found that the consolidation is quicker than that of the simplified layer when the settlement data of LianXu expressway are analyzed.In the article,different simplification methods of consolidation coefficients are discussed,and the better one is chosen.Back analysis of Cv based on Asaoka method is conducted with lot of results are achieved,which are useful in design and analysis.
出处
《公路交通科技》
CAS
CSCD
北大核心
2004年第9期1-4,共4页
Journal of Highway and Transportation Research and Development
基金
教育部博士点基金项目资助(2001028618)
关键词
成层土
固结系数
简化计算
ASAOKA法
反演分析
Layered system
Consolidation coefficient
Simplification method
Asaoka method
Back analysis
