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一、概述黄土自重湿陷试验的自重压力,需要在试验前进行计算,算出土样所受到上覆土层的自重压力,以此值作为测定自重湿陷时须加的荷重。计算黄土饱和自重压力采用的算式为:p_z=0.98sum from i=1 to n(ρ_((?)i)+0.85n/100)h_i (1)或简化式 p_z=1.764 sum from i=1 to n ρ_ih_i (2)
1. To summarize the self-weight pressure of loess’ self-heavy collapsibility test, it is necessary to calculate before the test to calculate the self-weight pressure of the soil sample on the overlying soil. This value is used as the load to be measured when the self-weight collapsible. The formula used to calculate the saturated earth pressure of loess is: p_z=0.98sum from i=1 to n(ρ_((?)i)+0.85n/100)h_i (1) or the simplified formula p_z=1.764 sum from i=1 to n ρ_ih_i (2)