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Title: Laminar box system for 1-g physical modeling of liquefaction and lateral spreading
Authors: Thevanayagam, S.
Kanagalingam, T.
Reinhorn, A.
Tharmendhira, R.
Dobry, R.
Abdoun, T.
Elgamal, A.
Zeghal, M.
Ecemiş, Nurhan
El Shamy, U.
Keywords: Ball bearings
Lateral spreading
Physical modeling
Publisher: American Society for Testing and Materials
Source: Thevanayagam, S., Kanagalingam, T., Reinhorn, A., Tharmendhira, R., Dobry, R., Abdoun, T., Elgamal, A., Zeghal, M., Ecemiş, N., and El Shamy, U. (2009). Laminar box system for 1-g physical modeling of liquefaction and lateral spreading. Geotechnical Testing Journal, 32(5). doi:10.1520/GTJ102154
Abstract: Details of a large scale modular 1-g laminar box system capable of simulating seismic induced liquefaction and lateral spreading response of level or gently sloping loose deposits of up to 6 m depth are presented. The internal dimensions of the largest module are 5 m in length and 2.75 m in width. The system includes a two dimensional laminar box made of 24 laminates stacked on top of each other supported by ball bearings, a base shaker resting on a strong floor, two computer controlled high speed actuators mounted on a strong wall, a dense array advanced instrumentation, and a novel system for laboratory hydraulic placement of loose sand deposit, which mimics underwater deposition in a narrow density range. The stacks of laminates slide on each other using a low-friction high-load capacity ball bearing system placed between each laminate. It could also be reconfigured into two smaller modules that are 2.5 m wide, 2.75 m long, and up to 3 m high. The maximum shear strain achievable in this system is 15 %. A limited set of instrumentation data is presented to highlight the capabilities of this equipment system. The reliability of the dense array sensor data is illustrated using cross comparison of accelerations and displacements measured by different types of sensors. Copyright © 2009 by ASTM International.
ISSN: 0149-6115
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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