phreatic surface

The generation of phreatic surface reservoir is a combined result of many geologic factors.

此外,结合大量的表层结构调查工作,提出了真假潜水面这一概念.

With considering the effect of seepage, the position of the exit point and the phreatic surface, as well as the total head was calculated through iteration at first. The seepage forces were also determined according to the hydraulic gradient.

考虑渗流作用时，先采用有限元法计算坝体渗流场，通过迭代计算出稳定渗流的逸出点和浸润线位置，并根据水力梯度计算坝体所受的渗透力。

In the seepage theory, the current expression of boundary condition on phreatic surface is aimed at a kind of seepage.

渗流理论中现有的潜水面边界条件表达式是针对特定方向的一类潜水渗流问题而给出的。