土力学(李广信)清华大学出版社课后习题答案

发布时间：2020-07-28 23:20:58

如上

网友回答

第一章
1-1:
已知：V = 72 cm^3, m=129.1g , ms = 121.5g , Gs = 2.70
则：w = (m-ms)/ms = (129.1-121.5)/121.5 = 6.3%
r = pg = mg/v = 129.1*10/72 = 17.9 KN/m^3
Vs = Ms/Ps = 121.5/2.7 = 45 cm^3
Vv = V - Vs = 72-45 = 27 cm^3

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