Taking the propagation of rock landslide surge along the upstream and downstream of the river channel in the mountain canyon and the climbing process caused by the collision with the water-retaining building as the research object,a water tank physical test model was established to study the sliding height of the landslide body,the volume of the landslide body,and the propagation of surge waves.The climbing law of landslide surges under different working conditions such as distance is proposed.The maximum climb height estimation formula is proposed when landslide sur-ges propagate downstream along the river and collide with vertical water-retaining buildings.Through dimensionless processing and sensitivity analysis of the landslide volume,sliding height,and surge propagation distance,the results show that the Froude number(Fr)of the landslide body has the most significant impact on the surge climb,followed by the relative surge propagation distance,landslide body shape coefficient,landslide body relative volume.On the basis of experiments,a formula for the maximum surge height is proposed concerning the Froude number(Fr)of the land-slide body entering the water,the relative propagation distance of the surge,and the shape coefficient of the landslide body,which provides a basis for estimating the surge height of rock landslides in alpine canyon areas.
关键词
滑坡涌浪/最大爬高/影响因素/经验估算公式
Key words
landslide surge/climb height/influence factors/estimation formula
维普
万方数据