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| THEORETIC DISCUSSION AND ENGINEERING PRACTICE FOR THE DETECTION OF SEVERE DEFECTS IN THE UPPER PARTS OF A FOUNDATION PILE |
| PAN Ji-shun1, LU Zhi-quan2, LIU Chang-lai2, REN Jun3 |
1. University of Science and Technology of China, Hefei 230026, China;
2. Geophysical Prospecting Center of China Seism Bureau, Zhengzhou 450002, China;
3. Seism Bureau of Shaanxi province, Xi'an 710068, China |
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Abstract A mathematical model of the vibration at the upper segment of a pile when there exist severe defects is put forward based on theoretical analysis, and the curve characteristics of its low strain test is described according to engineering practice under condition of transient shock.
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Received: 06 September 1999
Published: 24 December 2000
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