Determining driving resistance with rebound of pile-top during pile driving

Autor: Chen Yun-min, Chen Ren-peng, Hu Ya-yuan
Rok vydání: 2001
Předmět:
Zdroj: Journal of Zhejiang University-SCIENCE A. 2:179-185
ISSN: 1862-1775
1673-565X
DOI: 10.1631/jzus.2001.0179
Popis: This paper presents a method to determine driving resistance with rebound of pile-top during pile driving. The soil around the pile shaft is assumed to be rigid-plastic, while that under the pile-tip is assumed to be ideally elastoplastic. The driving force acting on the pile-top is simplified to a triangular impact force. The kinematic equation of the pile-tip is established. From the one-dimensional wave equation, the movements of the pile-tip and pile-top are determined. The rebound at the pile-top can be written in a very concise form. It is shown that the shaft resistance makes the rebound at the pile-top decrease. In particular, when the pile is very long or the soil around the pile is very stiff, the decrease is very obvious.
Databáze: OpenAIRE
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