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| Estimation of Shallow S-Wave Velocity Structure of Two Practical Sites from Microtremors Array Observation in Tangshan Area | |
| 引用本文： | 董连成 陶夏新 李广影. Estimation of Shallow S-Wave Velocity Structure of Two Practical Sites from Microtremors Array Observation in Tangshan Area[J]. 天津大学学报(英文版), 2007, 13(5): 344-348 |
| 作者姓名： | 董连成 陶夏新 李广影 |
| 作者单位： | School of Civil Engineering Harbin Institute of Technology，School of Civil Engineering，Harbin Institute of Technology，College of Architecture and Civil Engineering，Heilongjiang Institute of Science and Technology，Harbin 150090，China，College of Architecture and Civil Engineering，Heilongjiang Institute of Science and Technology，Harbin 150027，China，Harbin 150090，China，Harbin 150027，China |
| 摘 要： | Microtremors array observation for estimating S-wave velocity structure from phase velocities of Rayleigh and Love wave on two practical sites in Tangshan area by a China-US joint group are researched.The phase velocities of Rayleigh wave are estimated from vertical component records and those of Love wave are estimated from three-component records of microtremors array using modified spatial auto-correlation method.Haskell matrix method is used in calculating Rayleigh and Love wave phase velocities,and the shallow S-wave velocity structure of two practical sites are estimated by means of a hybrid approach of Genetic Algorithm and Simplex.The results are compared with the PS logging data of the two sites,showing it is feasible to estimate the shallow S-wave velocity structure of practical site from the observation of microtremor array. |
| 关 键 词： | 微震序列 速度 S-波 地震波 |
| 修稿时间： | 2006-12-18 |
Estimation of Shallow S-Wave Velocity Structure of Two Practical Sites from Microtremors Array Observation in Tangshan Area |
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| DONG Liancheng,TAO Xiaxin,LI Guangying. Estimation of Shallow S-Wave Velocity Structure of Two Practical Sites from Microtremors Array Observation in Tangshan Area[J]. Transactions of Tianjin University, 2007, 13(5): 344-348 | |
| Authors: | DONG Liancheng TAO Xiaxin LI Guangying |
| Affiliation: | 1. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China;College of Architecture and Civil Engineering, Heilongjiang Institute of Science and Technology, Harbin 150027, China 2. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China 3. College of Architecture and Civil Engineering, Heilongjiang Institute of Science and Technology, Harbin 150027, China |
| Abstract: | Microtremors array observation for estimating S-wave velocity structure from phase velocities of Rayleigh and Love wave on two practical sites in Tangshan area by a China-US joint group are researched.The phase velocities of Rayleigh wave are estimated from vertical component records and those of Love wave are estimated from three-component records of microtremors array using modified spatial auto-correlation method.Haskell matrix method is used in calculating Rayleigh and Love wave phase velocities,and the shallow S-wave velocity structure of two practical sites are estimated by means of a hybrid approach of Genetic Algorithm and Simplex.The results are compared with the PS logging data of the two sites,showing it is feasible to estimate the shallow S-wave velocity structure of practical site from the observation of microtremor array. |
| Keywords: | microtremors array Love wave and Rayleigh wave phase velocities S-wave velocity structure hybrid approach of Genetic Algorithm and Simplex |
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