上覆荷载 meaning in English

cover load

The results in this paper indicate that the two boundary conditions , permeable boundary condition and sealed boundary condition , of surface , permeability of the media , and surmounting loads of surface , all have influence on the dynamic response of two - phase media to a certain extent
中国地展局工程力学研究所硕士学位论文曰. . ‘ . . . . . . . . . .研究表明表面透水条件、介质渗透性、上覆荷载等因素对两相介质的动力响应都有一定的影响。
2 ) the dynamic responses of the saturated soil are analyzed respectively when the normal incident waves from bottom boundary are p - waves and sv - waves . the responses of the soil skeleton and the pore fluid are studied , while the influences of different permeability coefficient and the surmounting loads on the dynamic responses of two - phase media are expounded
分别进行了在底边界p波与sv波垂直入射时饱和土的动力响应分析，研究了动力作用下土骨架和孔隙流体的反应，同时阐述了渗透系数和上覆荷载对两相介质动力响应的影响。