三峡库区轿顶峰^(#)1岸坡失稳过程及涌浪风险研究  

Study on Instability Process and Surge Wave on the No.1 Bank Slope of Jiaoding Peak in the Three Gorges Reservoir Area

作　　者：罗鹏 许万忠[1] 蒲文 唐有宁 宋健 任亮 LUO Peng;XU Wan-zhong;PU Wen;TANG You-ning;SONG Jian;REN Liang(School of Land and Resources Engineering,Kunming University of Science and Technology,Kunming 650000,China;208 Geological Team of Chongqing,Chongqing 400000,China)

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650000 [2]重庆市地矿局208地质队,重庆400000

出　　处：《水电能源科学》2025年第3期65-68,50,共5页Water Resources and Power

基　　金：国家自然科学基金项目(41562016)。

摘　　要：三峡库区岸坡失稳造成的涌浪对码头及通航船舶的安全造成极大威胁,因此对轿顶峰^(#)1岸坡进行失稳过程分析及失稳造成的涌浪程度研究对防控涌浪灾害十分必要。采用离散元法分析岸坡极限平衡状态,再将极限平衡状态下的参数折减以进一步研究岸坡的失稳过程;基于岸坡失稳过程模拟得到的相关边界条件采用FLOW-3D数值模拟软件对其在145、175 m两种水位工况下进行涌浪的预测及研究。结果表明,轿顶峰^(#)1岸坡经过滑移—溃屈破坏后整体形成碎屑流,碎屑沿岸坡滑入长江航道产生涌浪;涌浪在145 m水位工况下最大浪高约7.4 m,青石旅游码头最大爬高约4.7 m,在175 m水位工况下最大浪高约3.9 m,青石旅游码头最大爬高约3.4 m,两种工况下白鸶鹭与培石处涌浪爬高均不超过0.4 m。主要的潜在危害区为长江航道与青石旅游码头。The surge caused by the instability of the bank slope in the Three Gorges reservoir area poses a great threat to the safety of the wharf and the navigable ships.Therefore,the analysis of the instability process of the No.1 bank slope of Jiaoding Peak and the study of the degree of surge caused by the instability are very necessary for the prevention and control of the surge disaster.The discrete element method is used to analyze the limit equilibrium state of the slope,and then the parameters under the limit equilibrium state are discounted to further study the instability process of the slope.Based on the relevant boundary conditions obtained by the simulation of the instability process of the slope,the FLOW-3D numerical simulation software is used for the prediction of the surge under the working conditions of the water level of 145 m and 175 m.The results show that the No.1 bank slope of Jiaoding Peak was damaged by slip-rupture and debris flow was formed as a whole,and the debris slid into the Yangtze River channel along the bank slope to generate surging waves;The maximum height of the surge waves was about 7.4 m under the water level condition of 145 m,and the maximum height climbed by Qingshi Tourist Terminal was about 4.7 m;The maximum height of the surage waves was about 3.9 m under the water level condition of 175 m,and the maximum height climbed by Qingshi Tourist Terminalwas about 3.4 m;The maximum surage wave height at Bailu and Peishi do not exceed 0.4 m under the above conditions.The main potential hazard areas are the Yangtze waterway and the Qingshi Tourist Terminal.

关 键 词：涌浪 数值模拟 UDEC离散元软件 三峡库区 FLOW-3D 

分 类 号：TV139.2[水利工程—水力学及河流动力学]