The transformation of weak saturated soils using piles-drains for improving its mechanical properties

International Conference on Materials Engineering and Applications

Ter-Martirosyan, Z.G.^1 ; Ter-Martirosyan, A.Z.^2 ; Sidorov, V.V.^3

Main Scientific Researcher of Research and Educational Centre Geotechnics, Moscow State University of Civil Engineering, 26 Yaroslavskoe shosse, Moscow

129337, Russia^1

Head of Research and Educational Centre Geotechnics, Moscow State University of Civil Engineering, 26 Yaroslavskoe shosse, Moscow

129337, Russia^2

Scientific Researcher of Research and Educational Centre Geotechnics, Moscow State University of Civil Engineering, 26 Yaroslavskoe shosse, Moscow

129337, Russia^3

关键词: Closed form solutions;    Coarse materials;    Consolidation process;    Construction sites;    Interaction problems;    Large scale tests;    Raft foundations;    Surrounding soils;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/348/1/012016/pdf
DOI  :  10.1088/1757-899X/348/1/012016

来源: IOP

【 摘 要 】

In practice of increased responsibility structures design there are often weak saturated clayey soils with low characteristics of deformability and strength take place on the construction site. In these cases, foundations using piles-drains of sandy or coarse material are recommended by norms, which is able to bear the load and to accelerate the consolidation process. The presented solutions include an analytical solution of the interaction problem between piles and slab raft foundation with the surrounding soil of the base with the possibility of extension of pile shaft. The closed-form solutions to determine the stresses in pile shaft and in the soil under the foundation slab are obtained. The article presents the results of large scale tests in the pilot area construction of major energy facilities in Russia.