| 小波变换在水泥土搅拌桩检测中的应用 |
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| 引用本文： | 万佳俊,阎长虹,夏文俊,许宝田,赵阳.小波变换在水泥土搅拌桩检测中的应用[J].工程勘察,2010(12):79-82. |
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| 作者姓名： | 万佳俊 阎长虹 夏文俊 许宝田 赵阳 |
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| 作者单位： | [1]南京大学地球科学与工程学院,南京210093 [2]江苏省交通工程建设局,南京210000 |
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| 基金项目： | 江苏省交通厅科技开发项目（2008）; 高等学校科技创新工程重大项目培育资金资助项目（2008-43） |
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| 摘 要： | 本文针对某高速公路江苏段软土地基处理水泥土搅拌桩的反射波检测曲线,基于MATLAB平台编制程序选取最优小波基进行小波分析,进一步提高了反射波法在水泥土搅拌桩检测中的适用性。在对桩体进行小波分析的同时,选取部分典型桩体进行现场钻孔取芯,钻孔取芯情况与实测曲线分析结果较为吻合,从而证明了小波变换在确定水泥土搅拌桩桩底和桩身缺陷时具有较大的准确性,具有较好的应用前景。
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| 关 键 词： | 水泥土搅拌桩 检测 反射波 小波分析 |
Application of wavelet transform to the integrity inspection of cement mixing piles |
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| Wan Jiajun,Yan Changhong,Xia Wenjun,Xu Baotian,Zhao Yang.Application of wavelet transform to the integrity inspection of cement mixing piles[J].Geotechnical Investigation & Surveying,2010(12):79-82. |
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| Authors: | Wan Jiajun Yan Changhong Xia Wenjun Xu Baotian Zhao Yang |
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| Affiliation: | 1.School of Earth Science and Engineering of Nanjing University,Nanjing 210093,China;2.Headquarters of Highway of Jiangsu,Nanjing 210000,China) |
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| Abstract: | The best wavelet base is selected to perform the wavelet analysis on the velocity reflection wave curves of the cement-soil mixing piles for the two sections of certain expressway in Jiangsu province based on the MATLAB,which further improves the application of reflected wave method in the inspection of the cement-soil piles.Some typical piles of the project are selected to drill the core samples,and it is found that the core sampling conditions are coincided with the results from wavelet analysis.It is also demonstrated that the wavelet analysis for determining the pile bottom and the pile defects is of the favorable accuracy,which would be of the better application prospect. |
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| Keywords: | the cement-soil mixing pile inspection reflected wave wavelet analysis |
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