孔隙比
孔隙比
孔隙比e用于描述岩土体的孔隙率，计算公式如下：
其中： | Vp | - | 孔隙的体积 |
Vs | - | 土颗粒的体积 |
孔隙比e的取值范围 (Braja M. DAS: Principles of Foundation Engineering)
岩土体 | 孔隙比e [-] |
级配不良的松散砂土 | 0,8 |
级配良好的密实砂土 | 0,45 |
含角状颗粒的松散砂土 | 0,65 |
含角状颗粒的密实砂土 | 0,4 |
硬粘土 | 0,6 |
软粘土 | 0,9 – 1,4 |
黄土 | 0,9 |
淤泥 | 2,5 – 3,2 |
冰碛土 | 0,3 |
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