Drainage effect of deep well on clay foundation and seepage field analysis
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Abstract:
The drainage effect of deep wells influences engineering design. According to the surveyed geological data, the finite element model for seepage analysis was established. Based on the fixed finite element method for unsaturated seepage analysis, the unsteady seepage field of deep well drainage was calculated. Then comparison was conducted between the numerical calculation and the test data. The results showed that the deep well drainage method was effective, and the permeability of foundation soil had a great influence on the seepage field. We suggest that appropriate well depth and well spacing should be adopted so as to ensure the effect of deep well drainage. The results can provide reference for drainage measures on similar clay foundations.
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