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目前塑料排水板地基的三维数值分析较为少见,考虑地基土的成层性和塑料排水板渗透系数的各向异性,建立了塑料排水板的三维地基模型,计算结果表明,塑料排水板加快了地基沉降的发展速率。之后建立了天然地基的三维模型,变化处理区土体的渗透系数来接近考虑塑料排水板的沉降计算结果,得到的等效渗透系数为原值的16.5倍,可见塑料排水板显著提高了原地基的渗透性。
At present, the three-dimensional numerical analysis of plastic drainage foundation is rare. Considering the stratification of foundation soil and the anisotropy of permeability coefficient of plastic drainage board, a three-dimensional foundation model of plastic drainage board is established. The calculation results show that the plastic drainage board accelerates the foundation Settlement rate of development. After the establishment of the three-dimensional model of natural foundation, changing the permeability coefficient of the soil in the treatment area close to consider the calculation results of the settlement of the plastic drainage board, the equivalent permeability coefficient of 16.5 times the original value shows plastic drainage board significantly improved the original foundation Permeability.