Table 3 Soil parameters
From: Stress analysis of parallel oil and gas steel pipelines in inclined tunnels
Friction coefficient | Soil density (kg/m3) | Buried depth to top of pipe (m) | Friction angle (degree) | Yield displacement factor | Overburden compaction multiplier | Thermal expansion coefficient (L/L/ °C) |
|---|---|---|---|---|---|---|
0.4 | 2400 | 1.20 | 30 | 0.015 | 5 | 11.214 × 10−6 |