Back to Search
Start Over
Empirical formulas for shear wave velocity prediction and their uncertainties: a case study of thirteen alluvium test sites in the Taipei Basin.
- Source :
- Bulletin of Engineering Geology & the Environment; Oct2022, Vol. 81 Issue 10, p1-22, 22p
- Publication Year :
- 2022
-
Abstract
- This paper examines the performance of shear wave velocity-standard penetration test (V<subscript>S</subscript>-SPT) models and shear wave velocity-piezocone penetration test (V<subscript>S</subscript>-CPTU) models developed in the literature and evaluates their transformation variabilities based on V<subscript>S</subscript>-SPT-CPTU datasets collected from thirteen alluvium sites in the Taipei Basin, Taiwan. These data show that V<subscript>S</subscript> is strongly correlated with the depth of soil (D) whereas it is weakly correlated with SPT-N or CPT-q<subscript>c</subscript>, which indicates that most of the transformation models in the literature are unsuitable to these sites since they are usually formulated without soil depth. Thus, V<subscript>S</subscript>-SPT and V<subscript>S</subscript>-CPTU empirical formulas and their transformation uncertainties for these sites in the Taipei Basin are re-calibrated in this paper, and they perform more unbiased with lower variability as shown in this paper, which indicates they provide a suitable approach to those sites for V<subscript>S</subscript> prediction. Finally, the application of these re-characterized models on V<subscript>S30</subscript> prediction is demonstrated with a practical example. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14359529
- Volume :
- 81
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- Bulletin of Engineering Geology & the Environment
- Publication Type :
- Academic Journal
- Accession number :
- 159390346
- Full Text :
- https://doi.org/10.1007/s10064-022-02949-9