Use of surface waves for ground characterization via linear elastic inversion method
Shear wave velocity profile provides information of the stiffness characteristics of the soil stratification. The shear wave velocity profile can be obtained using surface wave method. Surface wave methods as compared to the commonly used borehole methods allow one to determine the soil profile non-...
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sg-ntu-dr.10356-396602023-03-03T16:56:56Z Use of surface waves for ground characterization via linear elastic inversion method Tan, Pei Sze. Leong Eng Choon School of Civil and Environmental Engineering DRNTU::Engineering Shear wave velocity profile provides information of the stiffness characteristics of the soil stratification. The shear wave velocity profile can be obtained using surface wave method. Surface wave methods as compared to the commonly used borehole methods allow one to determine the soil profile non-invasively. In this project, the underlying soil profile is obtained using surface wave dispersion curve via the linear elastic inversion method. Data such as the borehole log and dispersion curves are collated from various literatures. The obtained data are then used to perform the linear elastic inversion exercise. From the results of the inversion exercise, a method is developed to obtain an accurate soil profile. This method is furthered evaluate with other case studies. It is concluded that the linear elastic inversion method is able to provide reliable and accurate soil profiles. The study showed that the best agreement between the inverted soil profile and actual soil profile is given for the linear elastic data, followed by the finite element data and lastly the in-situ data. Results also showed that a RMS error of less than 1.5 for the matching of the synthetic and actual dispersion curves is able to provide a soil profile which is within ±20% of the actual soil profile. Bachelor of Engineering (Civil) 2010-06-02T04:50:07Z 2010-06-02T04:50:07Z 2010 2010 Final Year Project (FYP) http://hdl.handle.net/10356/39660 en Nanyang Technological University 103 p. application/pdf |
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DRNTU::Engineering Tan, Pei Sze. Use of surface waves for ground characterization via linear elastic inversion method |
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Shear wave velocity profile provides information of the stiffness characteristics of the soil stratification. The shear wave velocity profile can be obtained using surface wave method. Surface wave methods as compared to the commonly used borehole methods allow one to determine the soil profile non-invasively. In this project, the underlying soil profile is obtained using surface wave dispersion curve via the linear elastic inversion method. Data such as the borehole log and dispersion curves are collated from various literatures. The obtained data are then used to perform the linear elastic inversion exercise. From the results of the inversion exercise, a method is developed to obtain an accurate soil profile. This method is furthered evaluate with other case studies. It is concluded that the linear elastic inversion method is able to provide reliable and accurate soil profiles. The study showed that the best agreement between the inverted soil profile and actual soil profile is given for the linear elastic data, followed by the finite element data and lastly the in-situ data. Results also showed that a RMS error of less than 1.5 for the matching of the synthetic and actual dispersion curves is able to provide a soil profile which is within ±20% of the actual soil profile. |
author2 |
Leong Eng Choon |
author_facet |
Leong Eng Choon Tan, Pei Sze. |
format |
Final Year Project |
author |
Tan, Pei Sze. |
author_sort |
Tan, Pei Sze. |
title |
Use of surface waves for ground characterization via linear elastic inversion method |
title_short |
Use of surface waves for ground characterization via linear elastic inversion method |
title_full |
Use of surface waves for ground characterization via linear elastic inversion method |
title_fullStr |
Use of surface waves for ground characterization via linear elastic inversion method |
title_full_unstemmed |
Use of surface waves for ground characterization via linear elastic inversion method |
title_sort |
use of surface waves for ground characterization via linear elastic inversion method |
publishDate |
2010 |
url |
http://hdl.handle.net/10356/39660 |
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1759856228899487744 |