论文标题
巨大滑坡的流动性和动力
Mobility and dynamics of Giant landslides
论文作者
论文摘要
大滑坡的稀有性减少了观察次数，并阻碍了对这些现象的理解。这里使用跳线距离来确定几千年前在大溪地北部形成的大型滑坡沉积物是由一次或多个事件引起的。使用建模来量化此事件的动力学表明，单个事件或少量事件（n <10）是负责的，并且在部分潜艇条件下的最大幻灯片速度很高（> 125 m/s）。这种潜艇的传播偏爱动态较慢，但跳动更长。潜艇条件下的有效基底摩擦范围为0.2 <$μ<0.3。
The rarity of large landslides reduces the number of observations and hinders the understanding of these phenomena. Runout distance was used here to determine whether the large landslide deposit formed several thousand years ago in northern Tahiti was caused by a single or multiple events. Using modelling to quantify the dynamics of this event suggested that a single event or a small number of events (n<10) were responsible, and that the maximum slide velocity was high (>125 m/s) under partially submarine conditions. Such submarine propagation favoured a slower dynamic but a longer runout. The effective basal friction under submarine conditions ranged from 0.2 < $μ$ < 0.3.
