Empirical porewater pressure generation model parameters in 1-D seismic site response analysis

Xuan Mei; Scott M. Olson; Youssef M.A. Hashash

doi:10.1016/j.soildyn.2018.07.011

Empirical porewater pressure generation model parameters in 1-D seismic site response analysis

Xuan Mei, Scott M. Olson, Youssef M.A. Hashash

Research output: Contribution to journal › Article › peer-review

Abstract

The Vucetic-Dobry porewater pressure (PWP) generation model is implemented in widely used one-dimensional site response analysis software. This PWP model relates excess PWP ratio, shear strain amplitude and number of cycles, and requires only three curve-fitting parameters from undrained cyclic shear tests. In this study, new empirical correlations were developed and validated using different databases of undrained cyclic direct simple shear and triaxial tests on a number of clean, subangular to subrounded, silica sands to relate model parameters to relative density (D_r) and uniformity coefficient (C_U). These correlations permit PWP estimates without advanced laboratory testing, yet exhibit small values of mean residual and standard deviation, and illustrate the importance of C_U on PWP generation.

Original language	English (US)
Pages (from-to)	563-567
Number of pages	5
Journal	Soil Dynamics and Earthquake Engineering
Volume	114
DOIs	https://doi.org/10.1016/j.soildyn.2018.07.011
State	Published - Nov 2018

ASJC Scopus subject areas

Civil and Structural Engineering
Geotechnical Engineering and Engineering Geology
Soil Science

Online availability

10.1016/j.soildyn.2018.07.011

Library availability

Discover UIUC Full Text

Cite this

@article{8948a5eca3c347449cec05650d1d6f54,

title = "Empirical porewater pressure generation model parameters in 1-D seismic site response analysis",

abstract = "The Vucetic-Dobry porewater pressure (PWP) generation model is implemented in widely used one-dimensional site response analysis software. This PWP model relates excess PWP ratio, shear strain amplitude and number of cycles, and requires only three curve-fitting parameters from undrained cyclic shear tests. In this study, new empirical correlations were developed and validated using different databases of undrained cyclic direct simple shear and triaxial tests on a number of clean, subangular to subrounded, silica sands to relate model parameters to relative density (Dr) and uniformity coefficient (CU). These correlations permit PWP estimates without advanced laboratory testing, yet exhibit small values of mean residual and standard deviation, and illustrate the importance of CU on PWP generation.",

author = "Xuan Mei and Olson, {Scott M.} and Hashash, {Youssef M.A.}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = nov,

doi = "10.1016/j.soildyn.2018.07.011",

language = "English (US)",

volume = "114",

pages = "563--567",

journal = "Soil Dynamics and Earthquake Engineering",

issn = "0267-7261",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Empirical porewater pressure generation model parameters in 1-D seismic site response analysis

AU - Mei, Xuan

AU - Olson, Scott M.

AU - Hashash, Youssef M.A.

PY - 2018/11

Y1 - 2018/11

N2 - The Vucetic-Dobry porewater pressure (PWP) generation model is implemented in widely used one-dimensional site response analysis software. This PWP model relates excess PWP ratio, shear strain amplitude and number of cycles, and requires only three curve-fitting parameters from undrained cyclic shear tests. In this study, new empirical correlations were developed and validated using different databases of undrained cyclic direct simple shear and triaxial tests on a number of clean, subangular to subrounded, silica sands to relate model parameters to relative density (Dr) and uniformity coefficient (CU). These correlations permit PWP estimates without advanced laboratory testing, yet exhibit small values of mean residual and standard deviation, and illustrate the importance of CU on PWP generation.

AB - The Vucetic-Dobry porewater pressure (PWP) generation model is implemented in widely used one-dimensional site response analysis software. This PWP model relates excess PWP ratio, shear strain amplitude and number of cycles, and requires only three curve-fitting parameters from undrained cyclic shear tests. In this study, new empirical correlations were developed and validated using different databases of undrained cyclic direct simple shear and triaxial tests on a number of clean, subangular to subrounded, silica sands to relate model parameters to relative density (Dr) and uniformity coefficient (CU). These correlations permit PWP estimates without advanced laboratory testing, yet exhibit small values of mean residual and standard deviation, and illustrate the importance of CU on PWP generation.

UR - http://www.scopus.com/inward/record.url?scp=85051626505&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85051626505&partnerID=8YFLogxK

U2 - 10.1016/j.soildyn.2018.07.011

DO - 10.1016/j.soildyn.2018.07.011

M3 - Article

AN - SCOPUS:85051626505

SN - 0267-7261

VL - 114

SP - 563

EP - 567

JO - Soil Dynamics and Earthquake Engineering

JF - Soil Dynamics and Earthquake Engineering

ER -

Empirical porewater pressure generation model parameters in 1-D seismic site response analysis

Abstract

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this