Comparison on VS(Z)-VS(30) models

DOI

10.2991/iceesd-17.2017.24How to use a DOI?

Keywords

VS(30), VS(Z), time-averaged shear-wave velocity, Pearson correlation coefficient, standard deviations of residuals

Abstract

The time-averaged shear-wave velocity to the depth of 30 m (VS(30)) is the most important site specific parameter in seismic building codes and ground motion prediction equations (GMPEs). So far, there are several models to estimate VS(30) from average velocities to depths less than 30m VS(Z). 206 borehole data from the middle-eastern segment of Tianshan Mountain and 20 borehole data from the western segment of southern Tianshan Mountain, with the depth more than 30m, are collected. Five models, which are used to estimate VS(30) by VS(Z), are compared by these data. The model of H. Y. Wang et al. is the best for the region on the middle-eastern segment of Tianshan Mountain if VS(Z) to depth more than 20m. Then, VS(Z)(Z =50 and 90m)are estimated by this model, Pearson correlation coefficient r 0.9972 and standard deviations of residuals RES 0.0088. However, the region on the western segment of southern Tianshan Mountain, the model of D. M. Boore et al. is the best, the reason may be the distribution of VS(Z) is more concentrated and the quantity of data is not sufficient.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Linjian Ji
AU  - Zhengru Tao
AU  - Wenqian Li
AU  - Xiaxin Tao
PY  - 2017/04
DA  - 2017/04
TI  - Comparison on VS(Z)-VS(30) models
BT  - Proceedings of the 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)
PB  - Atlantis Press
SP  - 127
EP  - 131
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-17.2017.24
DO  - 10.2991/iceesd-17.2017.24
ID  - Ji2017/04
ER  -