PDF Download HTML

[1]MA Rui,LI Xiaojun,RONG Mianshui,et al.Time-domain Analysis Method of Seismic Response of Soil Layer Site Considering the Pore-water Pressure Change of Sandy Soil[J].Journal of Seismological Research,2024,47(04):609-618.[doi:10.20015/j.cnki.ISSN1000-0666.2024.0014 ]

Copy

Time-domain Analysis Method of Seismic Response of Soil Layer Site Considering the Pore-water Pressure Change of Sandy Soil

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 47 Number of periods: 2024 04 Page number: 609-618 Column: Public date: 2024-08-20

Title:: Time-domain Analysis Method of Seismic Response of Soil Layer Site Considering the Pore-water Pressure Change of Sandy Soil

Author(s):: MA Rui; LI Xiaojun; RONG Mianshui; DONG Qing; (Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education,Beijing University of Technology,Beijing 100124,China)

Keywords:: Ground motion; sandy soil site; pore-water pressure; time-domain analysis methods

CLC:: TU435

DOI:: 10.20015/j.cnki.ISSN1000-0666.2024.0014

Abstract:: When analyzing the seismic response of sandy soil sites,how to reasonably consider the influence of pore pressure on site response is a major concern.In this paper,based on the soil dynamic constitutive model with dynamic skeleton curve,a dynamic stress-strain relationship is derived for sandy soil sites by introducing the pore pressure growth equation applicable to irregular loading,and a time-domain analysis method is established for the seismic response of the soil layer site considering the influence of the pore-water pressure of sandy soil.A computer program Sand Pore Pressure One-dimensional Time Domain(SPODTD)was developed based on the Matlab platform to calculate the seismic response of the soil layer site.The proposed method was validated using the observation data from the Garner Valley Downhole Array(GVDA)in the United States.The results show that the method can better simulate the influence of pore-water pressure change on ground motion for the seismic response analysis of the site with saturation sandy soil,and can obtain pore-water pressure change curves that fit well with the actual observation records,which demonstrates the practicality of the method and the reasonableness of the calculation results.

References:: -

Similar References:

Memo

Last Update: 2024-08-20