| Popis: |
Installation model tests of screwed steel pipe pile, which has helical wing on the pile edge, were executed in uniformly graded high density sand in a calibration chamber. The experimental factors are the pile diameter D_0 (48.6, 76.3, 101.6mm) and the surcharge pressure σ_v (50, 100, 150kPa). The results show the residual stresses, which remain in the screwed pile after installation, amount to high ratio for the stresses during installation. We have discussed the penetration mechanism of the screwed pile based on the stress distribution in the cross section of the pile. |
