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| Harmonic response of pile groups subjected to vertical load in half space saturated soil |
| Revised:September 27, 2003 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20055117 |
| KeyWord:harmonic response,pile group,saturated soil,Fredholm's integral equation |
| ZHOU Xiang-lian~1 ZHOU Guang-ming~2 WANG Jian-hua~1 |
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| Abstract: |
| The dynamic response of pile group embedded in homogeneous half space saturated soil and subjected to vertical harmonic load is considered.Biot's three dimensional wave motion theory is applied.The pile can be treated as one dimensional elastic pole unit.A Fredholm's integral equation of the second kind of pile group in saturated soil can be obtained by using the fundamental solutions of Biot's consolidation equation under vertical harmonic disk load and a suitable compatibility condition between piles and soil.The dynamic impedances of pile group are determined by using the impedances of single pile and the dynamic interaction factors.The expression of axial force and pore pressure of pile group in saturated soil can be obtained by using the superposition method.Selected numerical results for vertical impedances,axial force and pore pressure profiles are presented to portray the influence of piles distance.The method can be used to analyze the dynamic response of pile group in layered saturated soil. |