【摘要】 本文根据已求得的通辽地区不同非饱和带分区的次降雨入渗系数 (文献 [1]、[2 ])及其对应的地下水位埋深 ,次降雨量大小 ,采用变步长分步模拟优选方法及非线性规划法确定了每一规划分区不同等级降雨量下的降雨入渗系数随地下水位埋深Δ而变化的模拟曲线。在此基础上 ,通过多元回归分析技术找出了α-Δ线型中不同系数随降雨量的变化曲线 ,从而 ,使我们把次降雨量的α -P-Δ 关系写成一个统一的式子 ,克服了每一等级降雨量均给出不同式子的缺点更多还原

【Abstract】 According to the subrainfall infiltration coefficients, relevant groundwater depth and subrainfall in different unsaturated zones in Tongliao area, the model line of which rainfall infiltration coefficients vary with groundwater depth Δ at different level in every program zone is determined by using unequal-step simulated optimal-selecting method and nonlinear programming method, and then the α-Δ line with different coefficients which vary with rainfall are worked out by multivariate regressive analysis method. So the α-P-Δ relationship can be written in one unified formula. The defect of different relationship with different rainfall have to be used are gotten rid off.更多还原