An Analytical Stabilization of Landslide on Road Foundation Soft Ground Improvement by SDCM Columns

Author:

Thang Ngoc Nguyen 1,Tuan Anh Nguyen 2,Hen Hoang Nguyen 3

Affiliation:

1. Faculty of Engineering Technology, Tien Giang University, Vietnam

2. Ho Chi Minh City University of Transport, Ho Chi Minh City, Vietnam

3. Long An University of Economics and Industry, Vietnam.

Abstract

The deep cement mixing (DCM) method is a solution for reinforcing soft ground and has been applied in many countries. In Vietnam, the DCM method has also been experimented on and obtained positive results, especially in medium-scale and below-construction sites in the Mekong Delta where there is a thick layer of soft sediment soil. However, stiffened deep cement mixing (SDCM) column has barely been researched and experimented on. For this reason, the research on theory and design method for the SDCM column, especially using the SDCM column for reinforcing road foundation on soft ground is the main topic of this paper. The result from analysis using the finite element method has shown that the factor of safety of soft ground reinforced by the SDCM column has increased from 0.532 to 1.746.

Publisher

Technoscience Academy

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