Research Article
Determination Permeability Coefficient from Piezocone
Table 1
Estimated soil permeability (
) based on normalized CPT soil behavior type (SBTn) by Robertson [
2] (modified from Lunne et al., [
11]).
| | SBTn zone | SBTn | Range of k (m/s) | |
| | 1 |
Sensitive fine grained | 3 × 10−10 to 3 × 10−8 | NA | | 2 | Organic soils clay | 1 × 10−10 to 1 × 10−8 | | | 3 | Clay | 1 × 10−9 to 1 × 10−9 | | | 4 | Silt mixture | 3 × 10−9 to 1 × 10−7 | | | 5 | Sand mixture | 1 × 10−7 to 1 × 10−5 | | | 6 | Sand | 1 × 10−5 to 1 × 10−3 | | | 7 | Dense sand gravelly sand | 1 × 10−3 to 1 | | | 8 |
Very dense/stiff soil* | 1 × 10−8 to 3 × 10−5 | NA | | 9 | Very stiff fine-grained soil* | 1 × 10−9 to 3 × 10−7 | NA |
|
|
Overconsolidated and/or cemented.
|
