Table 2 Coefficient k1 as a function of soil and foundation type
| Type of soil (or ground) | Coefficient k1 | ||
|
mat |
strip
or independent foundations |
pile
or wall foundations |
|
| reclaimed land and alluvial soil | 2.0 | 2.6 | 2.4 |
| loose
structured, undisturbed sediments (sand, gravel) |
1.0 | 1.3 | 1.2 |
| solid
structured, undisturbed sediments (solid sand or gravel, solid clay, marl, soft rock) |
0.8 | 1.0 | 0.9 |
| hard
rock (limestone, sandstone, slate schist, granite, basalt, etc.) |
0.7 | 0.8 | - |