Terzaghi有效应力公式中的孔隙压力既指入渗引起的或外荷重引起的孔隙压力,也指两类孔隙压力之综合影响。入渗引起的孔隙压力由电拟试验确定,外荷重引起的孔隙压力起始值可用三轴试验测得。两类孔隙压力的叠加法则取决于孔隙压力的类别,产生的先后以及土类等。 The pore pressure in the Terzaghi effective stress formula refers to both the pore pressure caused by seepage or external loading and the combined effect of both pore pressures. The pore pressure caused by infiltration is determined by electric quasi-test. The initial value of pore pressure caused by external load can be measured by triaxial test. The law of superposition of the two types of pore pressures depends on the type of pore pressure, on the order of generation, and on the soil.