| Spring coefficient | Damping coefficient c (kg/sec) | |||
| k1 (kN/m) | k2 (kN/m) | 0 < t < 0.2 msec | 0.2 < t < 0.5 msec | t > 0.5 msec |
Oil clay (T = 50 mm) | 30 | 800 | 1500 | Linearly decrease | 100 |