| Signal processing method for shear wave velocity measurement |
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| 作者姓名： | 侯兴民 曲淑英 时向东 |
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| 作者单位： | Yantai University，Yantai University，Yantai University Yantai 264005 China Yantai 264005 China Yantai 264005 China |
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| 基金项目： | 烟台大学科研项目
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山东省自然科学基金
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教育部科学技术研究项目 |
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| 摘 要： | Soil shear wave velocity (SWV) is an important parameter in geotechnical engineering. To measure the soil SWV, three methods are generally used in China, including the single-hole method, cross-hole method and the surface-wave technique. An optimized approach based on a correlation function for single-hole SWV measurement is presented in this paper. In this approach, inherent inconsistencies of the artificial methods such as negative velocities, and too-large and too- small velocities, are eliminated from the single-hole method, and the efficiency of data processing is improved. In addition, verification using the cross-hole method of upper measuring points shows that the proposed optimized approach yields high precision in signal processing.
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| 关 键 词： | 信号加工 风速测定 土壤 沙尘 |
| 文章编号： | 1671-3664（2007）02-0205-08 |
| 收稿时间： | 23 December 2006 |
| 修稿时间： | 2006-12-232007-04-10 |
Signal processing method for shear wave velocity measurement |
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| Hou?Xingmin,Qu?Shuying,Shi?Xiangdong.Signal processing method for shear wave velocity measurement[J].Earthquake Engineering and Engineering Vibration,2007,6(2):205-212. |
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| Authors: | Hou Xingmin Qu Shuying Shi Xiangdong |
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| Institution: | Yantai University, Yantai 264005, China |
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| Abstract: | Soil shear wave velocity (SWV) is an important parameter in geotechnical engineering. To measure the soil SWV, three methods are generally used in China, including the single-hole method, cross-hole method and the surface-wave technique. An optimized approach based on a correlation function for single-hole SWV measurement is presented in this paper. In this approach, inherent inconsistencies of the artificial methods such as negative velocities, and too-large and too- small velocities, are eliminated from the single-hole method, and the efficiency of data processing is improved. In addition, verification using the cross-hole method of upper measuring points shows that the proposed optimized approach yields high precision in signal processing. |
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| Keywords: | shear wave velocity single-hole method correlation function optimized approach |
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