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A platform for research: civil engineering, architecture and urbanism
Performance of Stone Columns in Multi-Layered Soils System
Among different soil improvement methods, stone columns are widely used to enhance the engineering behaviour of deep soft soil deposits. In general, the deep soil deposits consist of multilayer soil having different hydro-mechanical behaviour characteristics. The design and performance of stone columns in the multi-layered soil profile are not well understood. As available guidelines for the design of stone columns mostly consider homogeneous clay deposits, an approximation would be wrong for the multi-layered sites. To understand the effect, a 3D finite-element (FE) analysis was performed on the representative unit cell with homogenous and multi-layered soil profiles. The performance of the unit cell in terms of the settlement, horizontal deformation, and stress concentration ratio were investigated. The results indicated that the variations of stress concentration ratio and stone column bulging levels are different in multi-layered stratification profiles and depend on the location of soft soil layers and their relative stiffness levels.
Performance of Stone Columns in Multi-Layered Soils System
Among different soil improvement methods, stone columns are widely used to enhance the engineering behaviour of deep soft soil deposits. In general, the deep soil deposits consist of multilayer soil having different hydro-mechanical behaviour characteristics. The design and performance of stone columns in the multi-layered soil profile are not well understood. As available guidelines for the design of stone columns mostly consider homogeneous clay deposits, an approximation would be wrong for the multi-layered sites. To understand the effect, a 3D finite-element (FE) analysis was performed on the representative unit cell with homogenous and multi-layered soil profiles. The performance of the unit cell in terms of the settlement, horizontal deformation, and stress concentration ratio were investigated. The results indicated that the variations of stress concentration ratio and stone column bulging levels are different in multi-layered stratification profiles and depend on the location of soft soil layers and their relative stiffness levels.
Performance of Stone Columns in Multi-Layered Soils System
Kiruthika, P. (author) / Banerjee, Subhadeep (author) / Murali Krishna, Adapa (author) / Boominathan, Adimoolam (author)
Geo-Congress 2022 ; 2022 ; Charlotte, North Carolina
Geo-Congress 2022 ; 50-60
2022-03-17
Conference paper
Electronic Resource
English
Performance of Stone Columns in Multi-Layered Soils System
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