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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2001, Vol. 2 Issue (2): 179-185    DOI: 10.1631/jzus.2001.0179
Science & Engineering     
DETERMINING DRIVING RESISTANCE WITH REBOUND OF PILE-TOP DURING PILE DRIVING
CHEN Ren-peng, HU Ya-yuan, CHEN Yun-min
Geotechnical Engineering Institute, Dept. of Civil Engineering of Zhejiang University, Hangzhou 310027, China
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Abstract  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.

Key words： pile      pile driving      soil resistance      Smith model      rebound     
Received: 30 May 2000     
CLC:  TU473.1+3  
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HU Ya-yuan
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CHEN Ren-peng, HU Ya-yuan, CHEN Yun-min. DETERMINING DRIVING RESISTANCE WITH REBOUND OF PILE-TOP DURING PILE DRIVING. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2001, 2(2): 179-185.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2001.0179     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2001/V2/I2/179

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