为分析泄漏后毒物的浓度在时间和空间上的变化规律，建立了二维渗流方程，开发了二维渗流事故后果分析软件。
To analyze the concentration variety with time and the dispersing distance of the seeped poisonous liquid, the planar seepage equation is built and the seepage consequence software is developed.
本文主要的研究内容和成果如下：1在非饱和土力学的基础上推导了二维渗流控制控制方程的稳态渗流方程和瞬态渗流方程。
The main research content and result are as follows: 1 The two-dimensional governing equations for steady-state flow and transient flow are derived based on unsaturated soil mechanics.
本文主要的研究内容和成果如下：1在非饱和土力学的基础上推导了二维渗流控制控制方程的稳态渗流方程和瞬态渗流方程。
The main research content and result are as follows: 1 The two-dimensional governing equations for steady-state flow and transient flow are derived based on unsaturated soil mechanics.
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