摘要
软土地基上筑路，主要问题是因地基固结而引起的沉降。对刚性路面而言，影响较大的是不均匀沉降。因此，如何在软土地基上修筑刚性路面是目前公路建设面临的一个新课题。本文首先从夹层结构的力学模型出发，推导了夹层结构的有限元法基本方程。然后编制了夹层结构刚性路面的应力分析程序（ＳＡＮＤＷＩＣＨ），并结合现场试验结果，给出了夹层结构设计计算诺模图。计算结果表明，本文提出的方法可供有关单位使用。
The main problem of raod constructed on soft-soil fundation is the subsidence resulted fromconsolidation of foundation. Uneven subidence has great effect on rigid pavement. In recent years,anew subject which met by highway engineerers is how to construct rigid pavement on soft-soil founda-tion. A mechanical model used for sandwich pavement structure is presented and a hindamental equa-tion based on the normal displacement is obtained. A finite element program named SANDWICH is de-veloped. Form field test and numerical computation, nomographs for calculating slab stresses were pre-sented. Example showed that this method can be used in practice.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
1994年第1期69-78,共10页
Chinese Journal of Geotechnical Engineering
关键词
刚性路面
软土地基
夹层结构
rigid pavement, soft-soil foundation, sandwich structure, finite element method.
