答:(1)粒径大于0.075mm的颗粒为9.4%+18.6%+21.0%+37.5%=86.9%超过全重的50%因此为细砂.
(2)孔隙比为(2.68*(1+0.285)*1)/1.9-1=0.81
饱和度为0.285*2.68/0.81*100%=94.3%
(3)Sr >80% 为饱和的
(4)因N=14 10<N<15 属于稍密
答:(1)粒径大于0.075mm的颗粒为9.4%+18.6%+21.0%+37.5%=86.9%超过全重的50%因此为细砂.
(2)孔隙比为(2.68*(1+0.285)*1)/1.9-1=0.81
饱和度为0.285*2.68/0.81*100%=94.3%
(3)Sr >80% 为饱和的
(4)因N=14 10<N<15 属于稍密