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2009, Volume 3, Issue 4

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Frontiers of Structural and Civil Engineering >> 2009, Volume 3, Issue 4 doi: 10.1007/s11709-009-0059-5

Structural characteristics of cement-stabilized soil bases with 3D finite element method

1.College of Civil and Hydropower Engineering, China Three Gorges University, Yichang 443002, China; 2.College of Water Resources and Hydroelectric Engineering, Wuhan University, Wuhan 430072, China;

Available online: 2009-12-05
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Abstract

Cement-stabilized soil bases have been widely used in expressways due to its high strength, appropriate stiffness, good water resistance, and frost resistance. So far, the structural characteristics and mechanical behaviors of cement-stabilized soil bases were not investigated so much. In this paper, the 3D elastic-plastic finite element method (FEM) was used to analyze the mechanical behaviors and structural characteristics of cement-stabilized soil bases from construction to operation. The pavement filling and the traffic loading processes were simulated, and a contact model was used to simulate the contact behavior between each layer of the pavement. Considering the construction process, the structural characteristics and mechanical behaviors of cement-stabilized soil bases were studied under asphalt-concrete pavement conditions. Furthermore, the general rules of deformations and stresses in cement-stabilized soil bases under different conditions were discussed, and some suggestions were put forward for the design and construction of cement-stabilized soil bases.

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