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Effects of anisotropic flow of pore water and multi-layer soil on three-dimensional consolidation characteristics

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Document pages: 11 pages

Abstract: Many practical engineering problems are seriously different from the assumptions considered in one-dimensional consolidation test. It is necessary to focus on the three-dimensional consolidation of soil under different boundary conditions. In this study, three-dimensional consolidation tests were carried out on four different anisotropic pore water flow conditions and fifteen different horizontal layered soil combinations. In addition, 12 different three-dimensional consolidation tests were carried out on different soils surrounded by anisotropic vertical soil layers on both sides. From these studies, it can be seen that the anisotropic flow of pore water has no effect on the initial and final surface settlement of soil, but has a significant effect on the consolidation procession process. The anisotropic flow of pore water during the consolidation process has an immense effect on the coefficient of consolidation. Horizontal layered soil has a great effect on both surface settlement and the rate of settlement. Vertical soil layers on two opposite sides of consolidative soil have an immense effect on the horizontal movements of consolidating soil, finally affecting the resultant vertical settlement of soil. Vertical anisotropic surrounding soil layers also have an effect on the rate of consolidation settlement.

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