Finite Element Analysis of Deformation Characteristic for Weak Interlayer Foundation

Xi Yuan Liu; Xin Li Du; Ji Zhou; Ji Shu Sun

doi:10.4028/www.scientific.net/AMR.594-597.552

Paper Titles

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Experimental Study of the Rotary Filling Piles with Large-Diameter under the Axial Load
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Research Status and Prospect of Strain Monitoring Method of Geotechnical Engineering
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Numerical Simulation of Stress Wave Propagation in Coal-Rock Combination Media
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Finite Element Analysis of Deformation Characteristic for Weak Interlayer Foundation
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Analysis of the Shear Stress on Prestressed Anchor in Rock Mass
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Pseudo-Dynamic Test Analysis of Rigid Pile Composite Foundation
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Finite Element Analysis of Cushion Thickness and Ultimate Bearing Capacity of Lime Soil Pile Composite Foundation
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A Multivariable Grey Model and its Application to Subgrade Settlement Prediction
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 594-597Finite Element Analysis of Deformation...

Finite Element Analysis of Deformation Characteristic for Weak Interlayer Foundation

Abstract:

In accordance with settlement observation data of weak interlayer foundation in The North China Plain, finite element model was made to analyze vertical settlement and horizontal deformation by MIDAS/GTS software. Then, Influence factors of subgrade settlement were studied through changing the fill height, crust layer thickness and compression modulus. The results show that crust layer has the board supporting and closing the substratum functions during the period of loading and a relatively short period after loading. The maximum horizontal deformation occurs in weak interlayer rather than the ground surface. The horizontal deformation increases generally with the increase of the fill height. When the crust layer thickness increase, its settlement grows larger and the settlement of soft soil layer has the decrease trend. The settlement of crust layer and weak layer is decreased with the compression modulus increase of crust layer. It explains that the shell effects of crust layer increase with the compression modulus increase of crust layer.