Research Article
Numerical Investigation of the Short-Term Mechanical Response of Buried Profiled Thermoplastic Pipes with Different Diameters to External Loads
Table 4
Parameters of the backfill used in the field test.
| | Parameter | Value |
| | In situ soil | | Maximum dry density (kg/m3) | 1549 | | Water content (%) | 12 | | Liquid limit (%) | 25.9 | | Plastic limit (%) | 17.3 | | Porosity | 42.3 |
| | Backfill | | Maximum dry density (kg/m3) | 1730 | | Coarse sand content (0.5 mm–3 mm) (%) | 35 | | Medium-coarse sand content (0.35 mm–0.5 mm) (%) | 57 | | Fine sand content (0.25 mm–0.35 mm) (%) | 8 | | Uniformity coefficient (Cu) | 6 | | Curvature coefficient (Cc) | 1.5 |
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