Unified correlation between SPT–N and shear wave velocity for a wide range of soil types considering strain-dependent behavior

Chi Chin Tsai, Tadahiro Kishida, Chun Hsiang Kuo

研究成果: 雜誌貢獻期刊論文同行評審

8 引文 斯高帕斯(Scopus)

摘要

The shear wave velocity (Vs) of sediments plays a key role in seismic wave amplification and is required in site response analysis. Such information is usually lacking during field exploration, but standard penetration test blow count (N) is typically available. Therefore, several studies have established empirical correlations between N and Vs for engineering use. However, these empirical correlations significantly vary in terms of model form and are only applicable to specific soil types, such as sand or clay. A unified empirical correlation for a wide range of soil types, which contains several soil properties (e.g., liquid limit and plasticity index (PI)) in addition to the Vs and N of strata, is developed in this study using the Engineering Geological Database for the Taiwan Strong Motion Instrumentation Program. Influences of confining stress, fines content (FC), PI, and soil types on small-strain properties (i.e., Vs) and large-strain measurements (i.e., N) are first evaluated through the developed correlations with these parameters. The unified correlation between Vs and N that is dependent on confining stress, FC, and PI is then proposed through the conditional prediction approach. The model successfully applies to different regions in Taiwan that includes various types of soil deposits and, thus, is potentially used for the other regions.

原文???core.languages.en_GB???
文章編號105783
期刊Soil Dynamics and Earthquake Engineering
126
DOIs
出版狀態已出版 - 11月 2019

指紋

深入研究「Unified correlation between SPT–N and shear wave velocity for a wide range of soil types considering strain-dependent behavior」主題。共同形成了獨特的指紋。

引用此