Table 4 Mechanical parameters of the surrounding rocks, rails, and track beds.
Material type | Density (kg/m3) | Elastic modulus (MPa) | Poisson’s ratio | Frictional angle (°) | Cohesion (kPa) |
|---|---|---|---|---|---|
Article fill | 2000 | 1 | 0.40 | 30.00 | 0 |
Silty clay | 1960 | 15 | 0.36 | 13.15 | 22.2 |
Strongly weathered mudstone | 2470 | 400 | 0.36 | 27.00 | 110 |
Primary support | 1950 | 28,000 | 0.3 | ||
Secondary support | 2150 | 31,500 | 0.3 | ||
Railroad bed | 2240 | 5800 | 0.3 | 50 | 300 |
43# Rail track | 2397 | 210,000 | 0.3 | – | – |
50# Rail track | 2450 | 225,000 | 0.3 | ||
60# Rail track | 2550 | 235,000 | 0.3 |
