Table 3 Results of the geotechnical indices for the soil samples in the study area
S/n | Longitudes | Latitudes | Samples (SB) location | Cohesion (kƿa) | Angle of internal resistance (°) | Coefficient of permeability (m/s) | Liquid limit (LL) | Plastic limit (PL) | Plastic index (PI) | Grain size |
|---|---|---|---|---|---|---|---|---|---|---|
1 | 05°41′23″ | 06°27′40″ | SB1 | 28 | 27 | 3.6 × 10–4 | 34 | 4 | 30 | Sandy clay |
2 | 05°37′43″ | 06°29′41″ | SB2 | 27 | 30 | 4.0 × 10–4 | 38 | 2 | 36 | Sandy clay |
3 | 05°40′10″ | 06°28′30″ | SB3 | 10 | 24 | 3.0 × 10–4 | 25 | NP | NP | Coarse grained sand |
4 | 05°37′13″ | 06°25′00″ | SB4 | 16 | 26 | 2.8 × 10–4 | 26 | NP | NP | Coarse grained sand |
5 | 05°35′00″ | 06° 27′00″ | SB5 | 45 | 37 | 4.8 × 10–4 | 76 | 36 | 40 | Silty clay |
6 | 05°34′00″ | 06°27′01″ | SB6 | 27 | 28 | 3.5 × 10–4 | 33 | 3 | 30 | Sandy clay |
7 | 05°37′13″ | 06°25′00″ | SB7 | 27 | 30 | 4.2 × 10–4 | 38 | 3 | 35 | Sandy clay |
8 | 05°41′ 30″ | 06°27′40″ | SB8 | 12 | 24 | 3.2 × 10–4 | 24 | NP | NP | Coarse grained sand |
9 | 05°37′40″ | 06°26′30″ | SB9 | 18 | 25 | 2.8 × 10–4 | 26 | NP | NP | Coarse grained sand |
10 | 05°38′13″ | 06°25′00″ | SB10 | 46 | 40 | 4.6 × 10–4 | 76 | 35 | 41 | Silty clay |
|  |  |  |  | µ = 25.6 | µ = 23.70 | µ = 3.65 × 10–4 | µ = 40.00 | µ = 8.30 | µ = 21.20 |  |