The results show that the probability distribution characteristic of the vertical permeability coefficient in fissured rock zone is much close to the log-normal distribution.
结果表明，同正态分布和均匀分布相比，裂隙岩体地区的垂向渗透系数更接近对数正态分布。
The analysis results also show that foundation pit tends to fail in anisotropic soil when horizontal permeability coefficient is larger than that of vertical.
对比各种分析结果，当水平向渗透系数大于竖向渗透系数时，基坑最容易发生渗透破坏。
In view of seepage process in vertical fracture well in low permeability reservoir, considering kickoff pressure gradient and media deformation coefficient, bilinear flow model is established.
针对低渗透地层垂直裂缝井的渗流过程，考虑了启动压力梯度和介质变形系数的影响，建立了三线流模型。
The permeability coefficient on the direction vertical to the bedding plane is larger than that on the direction parallel to the bedding plane.
垂直于层理方向上的渗透系数大于平行于层理方向上的渗透系数。
The method can be used for measuring the vertical saturation permeability coefficient of the soil outdoors quickly and accurately.
该方法可用于野外迅速准确的测定土壤垂向饱和渗透系数。
The method can be used for measuring the vertical saturation permeability coefficient of the soil outdoors quickly and accurately.
该方法可用于野外迅速准确的测定土壤垂向饱和渗透系数。
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