| 小波分析在旁孔透射波测桩法中的应用 |
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| 引用本文： | 吴宝杰,杨桦,邢保国. 小波分析在旁孔透射波测桩法中的应用[J]. 工程地球物理学报, 2009, 6(1): 73-77 |
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| 作者姓名： | 吴宝杰 杨桦 邢保国 |
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| 作者单位： | 1. 浙江省建筑科学设计研究院,杭州,310012
2. 湖北中南勘察基础工程有限公司,武汉,430081 |
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| 基金项目： | 浙江省建设厅科研项目 |
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| 摘 要： | 常规无损检测方法无法检测既有建筑物下基桩桩身长度，而旁孔透射波法凭借其优势，可以在不直接接触桩顶的情况下检测基桩桩身长度。但该方法的推广受到桩周土和震源的限制，从而影响异常判别。文中根据实测数据证明，小波分析的应用能够提高解释精度，使该方法的适用性更强，且基于Matlab的小波分析容易实现．编程简单。
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| 关 键 词： | 小波分析 旁孔透射波法 基桩 初至时间 |
Application of Wavelet Analysis in Piles Detection Based on Parallel Seismic Test |
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| Wu Baojie,Yang Hua,Xing Baoguo. Application of Wavelet Analysis in Piles Detection Based on Parallel Seismic Test[J]. Chinese Journal of Engineering Geophysics, 2009, 6(1): 73-77 |
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| Authors: | Wu Baojie Yang Hua Xing Baoguo |
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| Affiliation: | 1. Zhejiang Academy of Building Research ＆ Design, Hangzhou Zhejiang 310012, China; 2. South-central Geological Prospecting Bureau, Wuhan 430081, China) |
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| Abstract: | Conventional non--destructive testing methods can not detect the length of pile under existing building. Parallel seismic method, with its advantages, can detect the length of pile, not directly contact the top of the pile. However, the method of promotion is restricted by the soil around the pile and wave source, and that makes more difficult to identify abnormal. According to the paper, the measured data show that the application of wavelet analysis can improve the accuracy of interpretation and the method can enhance the applicability. The wavelet analysis based on matlab is easy to achieve and is simple to program. |
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| Keywords: | wavelet analysis parallel seismic test pile first break time |
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