| 基桩低应变缺陷定量分析的一种新方法 |
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| 引用本文： | 赵晓艳,蔡靖,李静娟,梁春永.基桩低应变缺陷定量分析的一种新方法[J].河北工业大学学报,2004,33(4):113-116. |
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| 作者姓名： | 赵晓艳 蔡靖 李静娟 梁春永 |
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| 作者单位： | 河北工业大学,土木工程学院,天津,300132;天津大学,岩土工程研究所,天津,300072;河北工业大学,材料学院,天津,300130 |
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| 摘 要： | 从桩土共同作用的波动阻尼方程入手，建立缺陷桩的桩土系统参数模型，得到缺陷桩在瞬态激励作用下的速度响应解析解，通过傅立叶逆变换将频率域中的缺陷桩速度响应变换为时域中的速度响应．根据此模型编制软件，进行大量计算分析，得出缺陷程度与速度曲线中反射波、入射波振幅比之间的关系式．通过工程实际验证本文提出的时域缺陷量化分析方法的正确性。
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| 关 键 词： | 基桩 速度响应 振幅比 定量分析 |
| 文章编号： | 1007-2373(2004)04-0113-04 |
| 修稿时间： | 2004年4月19日 |
A New Quantity Analysis Technique on Defects of Pile in Low Strain |
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| ZHAO Xiao-yan,CAI Jing,LI Jing-juan,LIANG Chun-yong.A New Quantity Analysis Technique on Defects of Pile in Low Strain[J].Journal of Hebei University of Technology,2004,33(4):113-116. |
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| Authors: | ZHAO Xiao-yan CAI Jing LI Jing-juan LIANG Chun-yong |
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| Affiliation: | ZHAO Xiao-yan1,CAI Jing2,LI Jing-juan1,LIANG Chun-yong3 |
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| Abstract: | Thispaperbeganwiththewave-dampingequationofpile-soilsystem,andtheparametermodelof defective piles was established. Analytical solution of velocity response of a defective pile subjected to a transient dynamical load was found. And then response in time domain was gained with Fouire transformation. Based on the solution al- gorithm was found in this paper, with which a number of calculation was made. At the result of the relation between defects' degree and amplitudes' ratio on test plot was established in this article. At last the solution of defect degree provided in this paper was verified by practical project. |
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| Keywords: | pile velocity response amplitude ratio quantity analysis |
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