| 土类 | 渗透系数(cm/s) | 土类 | 渗透系数(cm/s) |
| 粘土 | <1.2 × 10−6 | 细砂 | 1.2 × 10−3~6 × 10−3 |
| 粉质粘土 | 1.2 × 10−6~6 × 10−5 | 中砂 | 6 × 10−3~2.4 × 10−2 |
| 粘质粉土 | 6 × 10−5~6 × 10−4 | 粗砂 | 2.4 × 10−2~6 × 10−2 |
| 黄土 | 3 × 10−4~6 × 10−4 | 砾砂 | 6 × 10−2~1.8 × 10−1 |
| 粉砂 | 6 × 10−4~1.2 × 10−3 |
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