Laboratory investigations of earthquake- and landslide-induced composite surges Laboratory investigations of earthquake- and landslide-induced composite surges

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Vol14 No.8: 1537-1549

Title】Laboratory investigations of earthquake- and landslide-induced composite surges

AuthorAI Hong-zhou1; YAO Ling-kan1, 2, 3*; ZHOU Yi-liang1

Addresses1 School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China; 2 Road and Railway Engineering Research Institute, Sichuan Key Laboratory of Seismic Engineering and Technology, Chengdu 610031, China; 3 MOE Key Laboratory of High-speed Railway Engineering, Chengdu 610031 China

Corresponding authoryaolk@home.swjtu.edu.cn

CitationAi HZ, Yao LK, Zhou YL (2017) Laboratory investigations of earthquake- and landslide-induced composite surges. Journal of Mountain Science 14(8). DOI: 10.1007/s11629-016-4339-y

DOI10.1007/s11629-016-4339-y

AbstractSeismic surges and landslides are both major secondary mountain hazards during an earthquake. This paper investigates earthquake- and landslide-induced composite surges through large-scale shaking table water tank model experiments. A series of tests were conducted for various initial water depths, peak ground accelerations, slide impact velocities, and slide volumes. Based on the results of the tests, the effects of these parameters on the maximum wave heights of the earthquake- and landslide-induced composite surges were analyzed. An amplification coefficient of seismic surges was defined, and the prediction equation for the amplification coefficient was developed through non-dimensional multiple linear regression analysis. Then, an empirical equation for the maximum wave heights of the composite surges was developed based on the amplification coefficient and Demirel's method. This equation provides a calculation method for earthquake- and landslide-induced composite surge waves.

KeywordsLaboratory investigation; Earthquake; Landslide; Composite surge; Maximum wave height; Wave surge