Research Article
Model Tests of Earth Pressure on Buried Rigid Pipes and Flexible Pipes underneath Expanded Polystyrene (EPS)
| | Scheme | Pipe material | Load-reducing material | Thickness of EPS, C (cm) | Layer spacing of EPS, Z (cm) | Number of EPS layers, N | EPS width, B (cm) |
| | 1 | Steel pipe | — | — | — | 0 | — | | 2 | Steel pipe | EPS | 1 | — | 1 | 16.5 | | 3 | Steel pipe | EPS | 2 | — | 1 | 16.5 | | 4 | Steel pipe | EPS | 3 | — | 1 | 16.5 | | 5 | Steel pipe | EPS | 4 | — | 1 | 16.5 | | 6 | Steel pipe | EPS | 2 | 5 | 2 | 16.5 | | 7 | PVC pipe | — | — | — | 0 | — | | 8 | PVC pipe | EPS | 1 | — | 1 | 16.5 | | 9 | PVC pipe | EPS | 2 | — | 1 | 16.5 | | 10 | PVC pipe | EPS | 3 | — | 1 | 16.5 | | 11 | PVC pipe | EPS | 4 | — | 1 | 16.5 |
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