| Title | Seismic Wave Monitoring and Evaluation of Liquefaction Potential at Harbor Areas |
| Dept | IOT |
| Year | 2003 |
| Month | |
| Price | |
| Summary | Published in June 2003 IOT SERIAL No.92-66-745，242pp. Taiwan is located in western branch of the Cum-Pacific Seismic Belt, hence earthquakes occurred frequently in Taiwan. Under strong earthquake shaking, the liquefaction of sandy soils of alluvium and reclaimed lands in western coastal area of Taiwan may occur, which may cause damages for coastal and harbor facilities at this area. This project is divided into two subprojects: The first subproject is “Seismic Wave and Excess Porewater Pressure Monitoring at Harbor Areas” In this study, the ground surfaced and embedded seismographers and piezometers were installed in Taichung Harbor area. Our goal is to combine the monitoring results of seismic waves and excess porewater pressures in ground during earthquakes to study the seismic response and liquefaction behavior of soils in the concerned area above. The second subproject is “The Study for Local Models of Liquefaction and the Risk of Liquefaction at Harbor Areas” In this study, we collected 174 CPT data sets and 288 SPT data sets of liquefaction and non-liquefaction cases from Chi-Chi earthquake. The Logistic regression model and the Discriminant model of the statistic classification method were applied to these data. Some local models for evaluating liquefaction potential using CPT data and SPT data were established in this study. The relationship of probability of liquefaction (PL) and factor of safety against liquefaction (Fs) were also established. As a result, the analyses of ground subsidence and liquefaction potential for the Taichung Harbor area during earthquakes were also performed. |
| Post date | 2004/12/30 |
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