Loading rate effect, creep and stress relaxation should be attributed to the viscous properties of the sand specimens, but not to the delayed dissipation of excess pore water pressure.
加载速率效应、蠕变以及应力松弛都是砂土材料本身黏性的反映，而与超孔隙水压力的消散无关。
Essentially the main mechanism of deformation and failure of rock mass induced by earthquake is the coupling effect of shear stress and excess static pore water pressure accumulation.
地震作用导致岩体变形破坏的主要机制是剪应力积聚和超静孔隙水压力累积效应的耦合作用。
On the basis of cavity expansion theory, the formulae of excess pore water pressure has been proposed, and the stress and strain of soil had been analyzed.
根据半无限土体中小孔扩张问题的解，分析了在超孔隙水压作用的瞬时，土体中的应力、变形等，并提出了经验公式。
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