Gradual increases in loading will only cause the water within the soil to flow out, equalizing the pore water pressure.
负荷的逐渐增加只会导致土壤中的水流出,平衡孔隙水压力。
英语百科
Pore water pressure
Pore water pressure (sometimes abbreviated to pwp) refers to the pressure of groundwater held within a soil or rock, in gaps between particles (pores). Pore water pressures in below the phreatic level (see also groundwater) are measured in piezometers. The vertical pore water pressure distribution in aquifers can generally be assumed to be close to hydrostatic.