Yunyi Li

• Tsinghua University

Revetment breakwaters on reclaimed coral sand have demonstrated vulnerability to seismic damage during strong earthquakes, wherein soil liquefaction has been identified as a substantial contributor. Based on the results of three centrifuge shaking table tests, this study investigates the characteristic seismic response of revet-ment breakwater on r...

The topographic feature of offshore reef leads to its unique response under earthquakes, especially considering the influence of surface waves. A dynamic solid-fluid coupling numerical model is developed to analyze the seismic response of reef-seawater system with steep slope under the Scholte wave, a special type of surface wave observed in submar...

Lateral spreading due to earthquake induced soil liquefaction is frequently observed, but the resulting deformation is usually limited within several meters in near level ground. However, lateral spreading of several hundred meters was observed in very gentle slope ground within 0-3° in Balaroa during the 2018 Sulawesi Earthquake. In this study, nu...

Lateral spreading due to earthquake induced soil liquefaction is frequently observed, but the resulting deformation is usually limited within several meters in near level ground. However, lateral spreading of several hundred meters was observed in very gentle slope ground within 0-3° in Balaroa during the 2018 Sulawesi Earthquake. In this study, nu...

An explicit material point and finite volume sequentially coupled method (MPM-FVM) is developed using up form coupling formulations for the simulation of large deformations in saturated soil. In MPM-FVM, the momentum conservation equation is solved by MPM under the updated Lagrange framework, and the mass conservation equations are solved by FVM un...

Wave propagation in elasto-plastic media is often encountered in earthquake geotechnical engineering. However, dynamic boundary conditions in the numerical simulation of wave propagation problems are often developed based on linear elastic assumptions. In this study, the method of characteristics is utilized to propose a novel stepwise artificial b...

Large lateral deformation in almost level liquefiable ground has been observed during past strong earthquakes, which cannot be explained by the same driving force as that in sloping ground. This study proposes a Rayleigh wave-shear wave coupling mechanism for this phenomenon, which is evaluated on the element and site levels. A simple element level...