Open AccessShaking-table test on seismic motion compressed characteristics in a liquefied soil
Author(s) -
Chengshun Xu,
Pengfei Dou,
Su Chen,
Liucheng Gao,
Xinyu Du
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1676/1/012170
Subject(s) - earthquake shaking table , liquefaction , geotechnical engineering , foundation (evidence) , soil liquefaction , geology , seismic wave , motion (physics) , seismology , archaeology , history , artificial intelligence , computer science
The seismic motion compressed characteristic is a key issue on liquefied soil-structure shaking table model test. A series of shaking table tests were performed to study the seismic motion duration compression characteristics on the dynamic response of liquefied soil. Macroscopic phenomena and dynamic pore water pressure were measured and analyzed. Experimental results showed that the intensity and frequency of seismic motion had a significant influence on the dynamic response of the liquefied soil. Meanwhile, the phenomenon of soil liquefaction and the frequency filtering effects were obvious when inputting longer duration seismic motion. The liquefied soil was more sensitive to the seismic motion, which was compressed according to the predominant frequency of the foundation. In addition, it is suggested that the uncompressed seismic motion was more appropriate on the liquefied soil-structure model in 1g shaking table tests.