考虑滑体–水体相互作用的滑坡涌浪产生过程动力学模型研究

doi:10.13722/j.cnki.jrme.2021.1244

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Abstract Landslide tsunami generation ranks as the most important process during Landslide Generated tsunami(LGT) hazard chain，in which the mechanics of landslide/water interaction and the dynamic models play a key role for precise prediction of LGT. Based on the Lift Up(LU)，Push Ahead(PA) and Drag Along(DA) effects during wave generation proposed by the authors in earlier study，this paper established a coupling dynamic model of the three effects considering the landslide/water interactions. At the same time，the relationships between the three effects and 16 influence factors of initial wave heights were explained，and 8 direct influence factors(including sliding length，width，thickness，the rate of thickness change，magnitude and direction of impact velocity，water depth and landslide density) and three core influence factors(sliding volume，impact velocity and water depth) were specified. Furthermore，a series of physical experiments of LGT were carried out and the whole process was well reproduced by Tsunami Squares numerical simulation，which quantitatively verified the correction of the proposed coupling dynamic mode. This research revealed the dynamic mechanics of landslide tsunami generation，and the proposed coupling formulation can provide accurate models for LGT simulation. It has an important scientific significance and application value for LGT hazard prediction and mitigation.

Key words： slope engineering landslide generated tsunami wave generation Tsunami Squares initial wave numerical simulation

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	Articles by authors
	XIAO Lili
	WANG Jiajia
	LI Zhiqiang
	CHEN Hao

Cite this article:

XIAO Lili,WANG Jiajia,LI Zhiqiang, et al. Research on dynamic models of landslide tsunami generation considering slide/water interactions [J]. , 2022, 41(12): 2404-2416.

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http://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2021.1244 OR http://rockmech.whrsm.ac.cn/EN/Y2022/V41/I12/2404

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