天然沉积土往往是由渗透性不同的土层所组成。对于与土层层面平行和垂直的简单渗流情况,当各土层的渗透系数和厚度为已知时,我们可求出整个土层与层面平行和垂直的平均渗透系数,作为渗流计算的依据。 需要对水平渗流情形和竖直渗流情形分别单独考虑。 垂直平均渗流系数 水平平均渗流系数
...等效渗透系数;偏应力系数;经验公式 [gap=1540]Keywords : joint shear dilatation;seepage characteristic;equivalent permeability coefficient;deviatoric stress coefficient;empirical formula ..
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本文作者采用等效渗透系数方法模拟边缘效应,得到了其影响下的树脂流动前峰曲线和压力场。
In this paper, simulations are carried out with the approach of equivalent permeability, and the resin flow front curve and pressure fields with flow channels are obtained.
研究结果表明,采用等效渗透系数进行三维有限元计算是可行的,且计算精度可以满足工程要求。
It is shown that the 3-d calculation by FEM with the equivalent permeability coefficient is feasible and the calculating precision can meet the requirements of project.
给出了网络状裂隙的等效连续介质渗透系数计算方法和耦合模型中实现源与汇作用的方法。
A method for the calculation of equivalent porous permeability is presented by using the fracture geometry data in a network fracture system.
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