堤防双层地基渗流分析的传递矩阵解法

Transfer Matrix Method for Seepage Analysis of Two-layer Foundation of Levees

应用传递矩阵解法进行堤防工程双层地基渗流分析,其解法便于编制计算机程序,可用很少的输入数据分析强弱透水层厚度不规则分布、弱透水层表面倾斜等等实际遇到的不规则情况,可以同时绘出强弱透水层的水头、单宽流量以及覆盖层竖向渗透比降分布曲线,既满足堤防工程设计规范[1]的要求,又便于堤防工程实际应用.

The transfer matrix method is applied to seepge analysis of two-layer foundation with the unregular bound-ary,unregular distribution of permeability coefficients and inclined surface of weak permeability layer,etc.It is easy to compile calculation programme and only requires a few input data.This method may illustrate the curves of water head s and the unit discharge of strong permeable layer,and that of vertical percolation gradient of the weak perme-able layer.It is satisfactory to the requirements of the design specifications and convenient for practical application of levees.