V型河道下滑坡涌浪的传播与爬高  

Propagation and climb height of surge triggered by landslide in V-river

作　　者：黄筱云[1,2] 刘灿[1,2] 程永舟[1,2] 翟建国 孔增增 

机构地区：[1]长沙理工大学水利工程学院,湖南长沙410004 [2]水沙科学与水灾害防治湖南省重点实验室,湖南长沙410004 [3]中交武汉港湾工程设计研究院有限公司,湖北武汉430040

出　　处：《长沙理工大学学报（自然科学版）》2017年第1期70-77,共8页Journal of Changsha University of Science and Technology:Natural Science

基　　金：国家自然科学基金资助项目(51679015;51309036);湖南省自然科学基金资助项目(2015JJ2006)

摘　　要：为了研究V型河道中滑坡涌浪的传播形态及爬高特点,采用有限差分法,基于计算流体力学软件Flow-3D,建立数值模型对滑块沿斜坡下滑涌浪的产生和传播过程进行了模拟。并以千将坪滑坡为例,分析了大型滑坡体在V型河道下涌浪的产生、传播及爬高特征,在此基础上研究了不同爬坡坡度和水深对最大波高和最大爬高的影响。研究结果表明,模拟结果与实测资料基本一致;深V型河道中涌浪的爬高受两岸坡度影响突出,通用的爬高计算公式可能会明显低估涌浪爬坡坡度;最大涌浪高度随水深增加呈先增加后减小的变化趋势。In order to study the V River, climbing form and characteristics of the spread of the landslide surge, based on computational fluid dynamics software Flow-3D and used the finite difference method, the generation and propagation process of the sliding surge along the slope was simulated. Taking the Qianjiangping Landslide as an example, this paper analyzed the generation, propagation and climbing height characteristics of surge when the large slide enter into V-River. This paper further explored the effects of the different climbing slope and water depth to the maximum wave height and the maximum climbing height. The results were listed as follows. 1）The simulation results are consistent with the observed data; 2） Climbing slope has great influence on the surge climbing height, The general surge run-up formula calculation results is small, may significantly underestimate the value of climbing surge. 3）The maximum wave height increases first and then decreases with the increase of water depth.

关 键 词：滑坡涌浪 V型河道 千将坪滑坡 涌浪传播 最大波高 最大爬高 Flow-3D 

分 类 号：U656.31[交通运输工程—港口、海岸及近海工程]