Abstract
A membrane-beam-elastic element mechanical model of a lightweight composite heavy roadway, which is used on soft slimy ground, is built and its mechanical behaviors under loads are simulated by a large commercial finite element analysis software. The structural style which deformation is minimum under same loads is found, and numerical results are accorded with test ones, can meet the required precision and show reliability of the numerical calculation model. The commercial software can be used to simulate actual static strength situation of the lightweight composite heavy roadway and explore structural style of new roadway. Research shows that lightweight composite heavy roadway which can guarantee heavy vehicles pass in the soft slimy ground conditions make a significant technological breakthrough.
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