第二类越补非稳定流水文地质参数简化求解

Simplified Solution of Hydrogeological Parameters in Condition of Non-stationary Recharge Flow

第二类越流补给非稳定流条件下水文地质参数求解为涉及3个未知数的超越方程,常规的解析法无法直接获解。本文采用优化拟合方法,在工程适应参数范围内,用较为简单的函数实现了对由图表给出的第二类越流补给非稳定流井函数数值关系的替代,并利用水位降深比值关系经整理获得了仅含1个未知量的表达式,经简单试算即可完成参数求解,计算过程简捷,不依赖图表,便于实际工程应用。

The solution of the hydrogeological parameters in the condition of the non-stationary recharge flow is concerned with 3 unknown transcendental equations, which can not be obtained by the normal analytic method. This paper used the optimal fitting method to realize alternative of the function relationship of the chart-given non-stationary recharge flow with the simpler functions in the range of the parameters suitable with the engineering, and used the groundwater level decrease ratio relationship to obtain the expressions with only 1 unknown quantity. After simple calculation, the parameters can be obtained.