| No. | Stratum division | Depth (GL.-m) | Thickness (m) | Geological composition | N value (TCR/RQD) |
|---|---|---|---|---|---|
| BH-1 | Topsoil layer | 0.0-1.0 | 1.0 | Silty clay | - |
| Colluvium | 1.0-6.0 | 5.0 | Silty sand | 10/30-21/30 | |
| Sedentary deposit | 6.0-24.0 | 18.0 | Silty sand | 9/30-50/11 | |
| Weathered rock | 24.0-36.0 | 12.0 | gravel and Cobble stone mixed complex | 50/10-50/3 | |
| bed rock | 36.0-37.0 | 1.0 | Biotite granite | (95/45) | |
| BH-2 | Topsoil layer | 0.0-1.0 | 1.0 | Silty clay | - |
| Colluvium | 1.0-24.5 | 23.5 | Silty sand | 7/30-50/12 | |
| Weathered rock | 24.5-38.1 | 13.6 | gravel and cobble stone mixed complex | 50/10-50/5 | |
| bed rock | 38.1-40.0 | 1.9 | Biotite granite | 71/52 |