In Situ Plate Load Tests on the Soilbag Reinforced Expansive Soil Foundation

F.Q. Bai; Si Hong Liu; Jian Qiang Xu; Xue Jiang Liu; Li Hong Gao

doi:10.4028/www.scientific.net/AMR.718-720.1888

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 718-720In Situ Plate Load Tests on the Soilbag Reinforced...

In Situ Plate Load Tests on the Soilbag Reinforced Expansive Soil Foundation

Abstract:

In this paper, the research background of soilbag technique applied in the middle route of the South-to-North Water Transfer Project (SNWTP) is first described along with the reinforcement principle of soilbags. The loading deformation characteristics of the foundations for the marl, large-soilbag and small-soilbag are then discussed according to the in-situ load tests. The testing results indicate that the soilbag can improve the compression deformation characteristic of marl foundation significantly. The loading stiffness values of the marl, large-soilbag and small-soilbag foundations are about 16 to 18, 20 to 40 and 30 to 90 MPa/m respectively. Within the load range from 0 to 450 kPa, the loading and unloading p-s curves of soilbags consist of two parts, namely the perfectly elastic zone and the elasto-plastic zone. The unloading stiffness of soilbags is nearly 2 to 10 times greater than the loading stiffness. In addition, the mechanical rolling process can, to some extent, improve the compressive property of the soilbag foundation.

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Periodical:

Advanced Materials Research (Volumes 718-720)

Pages:

1888-1894

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.718-720.1888

Citation:

Cite this paper

Online since:

July 2013

Authors:

F.Q. Bai, Si Hong Liu, Jian Qiang Xu, Xue Jiang Liu, Li Hong Gao

Keywords:

Expansive Soil, In Situ Plate Load Test, Soilbag, South-to-North Water Transfer Project

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