Based on the idea of optimization design of pile type, the
composite foundations, which include cememt-flyash-gaavel (for short CFG) long
piles and cement-soil (for short CS) short piles, and CS piles with CFG core as
well, are formed. The method of the site dynamic characteristic tests of the
composite foundations is discussed. The test results show that fireworks bomb
may replace demolitions as the vibration resource. Vibration time is about 0.1sec. Horizontal
vibration major frequency is at 22.476 - 56.436Hz, and vertical vibration
major frequency is at 15.538 - 55.884Hz. The pile arrangements
of the composite foundation in the same site have more effect on the acceleration
peak value. From the point of vibration, the anti-seismic effect of the CS
piles with CFG core is better than others.
Cite this paper
J. Ding, W. Wang, T. Zhao, J. Feng and P. Zhang, "The Dynamic Characteristic Experimental Method on the Composite Foundation with Rigid-Flexible Compound Piles," Open Journal of Civil Engineering, Vol. 3 No. 2, 2013, pp. 94-98. doi: 10.4236/ojce.2013.32010.
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