NDLI: Simplified method for predicating consolidation settlement of soft ground improved by floating soil-cement column

Content Provider	Springer Nature Link
Author	Gong, Xiao nan Tian, Xiao jun Hu, Wen tao
Copyright Year	2015
Abstract	A simplified method is presented for predicting consolidation settlement of soft ground improved by floating soil-cement column on the basis of double soil-layer consolidation theory. Combining the axisymmetric consolidation model and equal strain assumption, the governing equation was derived for the consolidation of clayey subsoil reinforced by soil-cement column. By modifying the boundary condition of the interface between the improved layer and underlying layer on seepage and pore-water pressure, the analytical solution of consolidation of soft ground improved by floating soil-cement column was developed under depth-dependent ramp load. The results of the parameter analysis of consolidation behavior show that the consolidation rate is closely related with the depth replacement ratio by the column and the permeability of upper layer. The influence of column-soil constrained modulus ratio and radius ratio of the influence zone to the column on consolidation is also affected by depth replacement ratio. The column-soil total stress ratio increases with time and approaches the final value accompanied with the dissipation of excess pore water pressure.
Starting Page	2699
Ending Page	2706
Page Count	8
File Format	PDF
ISSN	20952899
Journal	Journal of Central South University of Technology
Volume Number	22
Issue Number	7
e-ISSN	22275223
Language	English
Publisher	Central South University
Publisher Date	2015-07-14
Publisher Place	Changsha
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	axisymmetric consolidation model floating soil-cement column consolidation depth-dependent ramp load analytical solution Engineering Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Metals and Alloys Engineering

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