What is more, because wetting effect cannot offset the lifting deformation, the sink of the shell is caused by seepage body force.
湿化作用不足以抵消浮托力对坝壳的上抬影响，坝壳下沉是由心墙渗透体积力引起的。
The action forces applied on rock mass of equivalent continuum by seepage include two parts, i. e., hydrostatic seepage pressure and hydrodynamic seepage pressure (seepage body force).
渗流对等效连续岩体的作用力包括渗透静水压力和渗透动水压力(渗流体积力)两部分。
In the loose model test, we can not only consider the nonlinear of the earth and rock-fill deformation, but also realize the seepage. The earthquake loadings can be thought as the body force.
在松散体模型试验中，不仅可以考虑土石变形的非线性，而且可以实现渗流，地震荷载亦可作为体积力处理。
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