Research Article
Rehabilitation Effect Evaluation of CFRP-Lined Prestressed Concrete Cylinder Pipe under Combined Loads Using Numerical Simulation
Table 1
Material properties of PCCP and soil.
| | Material | Density (kg/m3) | Young’s modulus (MPa) | Poisson’s Ratio | Cohesion, c(kPa) | Angle of internal friction, φ(°) | Dilation, ψ(°) |
| | Concrete core | 2500 | 27862 | 0.2 | — | — | — | | Mortar coating | 2350 | 25270 | 0.2 | — | — | — | | Prestressing wire | 7850 | 193050 | 0.3 | — | — | — | | Steel cylinder | 7850 | 206850 | 0.3 | — | — | — | | Undisturbed soil zone | 2100 | 250 | 0.32 | 65 | 30 | 0.1 | | Bedding soil zone | 2000 | 160 | 0.34 | 30 | 26 | 0.1 | | Backfilling soil zone A | 2000 | 180 | 0.33 | 35 | 28 | 0.1 | | Foundation of pipe | 2000 | 180 | 0.33 | 35 | 28 | 0.1 | | Buffering soil zone | 2000 | 150 | 0.34 | 20 | 25 | 0.1 | | Backfilling soil zone B | 2000 | 210 | 0.33 | 50 | 30 | 0.1 |
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