EVALUATION OF ANISOTROPIC PERMEABILITY IN MACRO AREA AND APPLICATION TO THE DEWATERING METHOD
2007 Volume 72 Issue 620 Pages 67-74
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2007 Volume 72 Issue 620 Pages 67-74
When we design the length of a cut-off wall, it is very important to consider anisotropic permeability of the ground. The objective of this study is to evaluate anisotoropic permeability in macro area of the ground. Two kinds of methods are proposed. One is using the in-situ test with single borehole. The other is using inverse analysis of FEM model with measurements of dewatering method. These methods were verified by in-situ test and FEM analysis, and were applied to design the dewatering method of actual site. About flowrate and drawdown at dewatering, estimates and measurements were good agreement.
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