Then the statistical damage constitutive model is developed for saturated and unsaturated rock based on the mixture theory.

在混合物理论基础上，建立了饱和、非饱和岩石损伤软化统计本构模型。

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Rainwater infiltration, one of main factors inducing rock slope to slip, changes distribution of seepage flow field in unsaturated zone of slope.

雨水入渗改变了岩质边坡非饱和区渗流场的分布，是引发边坡滑坡的主要因素之一。

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The paper brings the conception of seepage force and use finite element method to analyze rock slope stability under rainfall, based on unsaturated earth drained shear strength theory.

本文以非饱和土抗剪强度理论为基础，引入了渗透力的概念，利用有限单元法进行了降雨条件下岩质边坡稳定性的分析。

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The water has to percolate through the soil, it's got to go through unsaturated rock, it's then got to go to the aquifer, and then it's got to be transported and discharged in the river.

BBC: Thames archive reveals long nitrate rise