Effect of Soil Box Boundary Conditions on Dynamic Behavior of Model Soil in 1 g Shaking Table Test

• Published in: Applied sciences Vol. 10; no. 13; p. 4642
• Main Authors: Kim, Hoyeon, Kim, Daehyeon, Lee, Yonghee, Kim, Haksung
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.07.2020
• Subjects: 1-g shaking table test; acceleration amplification; Behavior; Boundary conditions; boundary effect; Boundary value problems; Box plots; Density; Design; Earthquakes; Laminar Shear Box; Mechanical properties; Methods; Researchers; Rigid Box; Seismic engineering; Seismometers; Soils; Studies; South Korea
• DOI: 10.3390/app10134642
• ISSN: 2076-3417

In order to evaluate the effects of soil box boundary conditions on the dynamic soil behavior, the Rigid Box (RB) and the Laminar Shear box (LSB) were constructed and 1 g shaking table tests were carried out for various boundary conditions. The boundary effects of the RB and the LSB were compared. To reduce the boundary effects of the RB, sponges, 5 cm, 10 cm, and 15 cm in thickness, were attached to the two end sides of the RB. A model soil was constructed on flat ground, and the acceleration and amplification occurring in the center of the soil were analyzed by spectrum and peak ground acceleration. Compared with the RB, the center and wall accelerations of LSB were very close to each other. This implies that the LSB can better simulate the behavior of the infinite half space than the RB.