Abstract
Liquefaction Experiments and Analysis Projects (LEAP) aim to use simple centrifuge modeling tests to validate and calibrate the numerical modeling results. In LEAP-UCD-2017 project, the design and specification of the model are quite uncomplicated than that of the earlier stage of LEAP. The model stored in a rigid container was construted by medium dense sand with 5 degrees of slope and subjected to a 1-Hz sinusoidal wave of base motion. Models were built, tested and cross-validated by many different research institutes. This paper describes in detail the result of experiments carried at National Central University (NCU), Taiwan (R.O.C.) This paper describes in details the unique part of the experiments at NCU.
Highlights
Since the 1960s, soil liquefaction is an important issue all over the world
Many projects have been proposed to evaluate the effectively between numerical simulations and physical modeling tests, and early period works such as VELACS project (Arulanandan and Scott 1993–1994) tried to verify the accuracy of various analytical procedures, but the results were not conclusive at the end
Three centrifuge modeling tests were conducted to simulate a 5-degree-inclined slope of 4-m-deep-saturated sandy ground subjected to different input motions
Summary
Since the 1960s, soil liquefaction is an important issue all over the world. In order to gain further insight into this issue, physical modeling and numerical modeling are widely used to simulate and investigate the behaviors of soil liquefaction. Numerical simulations cannot prove its preciseness and applicability without good parameter correction and verification from the results of physical modeling. Many projects have been proposed to evaluate the effectively between numerical simulations and physical modeling tests, and early period works such as VELACS project (Arulanandan and Scott 1993–1994) tried to verify the accuracy of various analytical procedures, but the results were not conclusive at the end. A new international cooperation project called Liquefaction Experiments and Analysis Projects (LEAP) is carried out (Manzari et al 2015). Several centrifuge facilities from the USA, UK, China, Japan, Korea, and Taiwan are participating in the LEAP
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