RS堆积体滑坡涌浪特征数值模拟研究  

Numerical Prediction of Impulse Waves Generated by RS Deposit

作　　者：湛正刚 程瑞林 张合作 马行生 胡大儒 王照英 王环玲[2] ZHAN Zhenggang;CHENG Ruilin;ZHANG Hezuo;MA Hangsheng;HU Daru;WANG Zhaoying;WANG Huanling(PowerChina Guiyang Engineering Co.,Ltd.,Guiyang,550081,China;Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering,Hohai University,Nanjing 210098,China;Huaneng Lancang River Hydropower Inc,Kunming 650021,China)

机构地区：[1]中国电建集团贵阳勘测设计研究院有限公司,贵阳550081 [2]河海大学岩土工程科学研究所,南京210098 [3]华能澜沧江水电股份有限公司,昆明650021

出　　处：《三峡大学学报（自然科学版）》2024年第3期8-14,共7页Journal of China Three Gorges University：Natural Sciences

基　　金：国家自然科学基金重点项目(51939004);贵州省高层次创新型人才([2018]5630-2);中国华能集团有限公司科技项目(HNKJ22-H107);国家重点研发计划项目(2017YFC1501100)。

摘　　要：库区滑坡涌浪是滑坡产生的次生灾害,严重威胁库区工程安全及大坝稳定运行.澜沧江RM水电站RS堆积体方量巨大,且位于近坝区,开展RMRS堆积体滑坡涌浪特征研究对大坝工程安全设计和施工至关重要.本文建立RS堆积体滑坡涌浪远近场计算模型,基于光滑粒子流体动力学方法及浅水方程,研究RM工程正常蓄水位2895m情况下RS堆积体滑动产生的涌浪特征,并与经验公式法进行对比.研究表明:分析所采用的数值模拟方法在研究滑坡涌浪中具有优势,该方法可准确模拟滑坡体入水产生的非线性流固耦合过程,准确捕捉涌浪传播过程中受到复杂地形影响以及爬升过程中的地形相关性.研究结果可为评估RMRS堆积体滑坡涌浪对工程安全的影响提供参考.Landslide-generated impulse waves(LGIWs)in reservoirs are secondary disasters of landslides,posing a significant threat to the safety and stable operation of the dam.The RS deposit at the Lancang River,RM hydropower station,is massive and close to the dam.Studying the LGIWs generated by the RS deposit is imperative to the safety design and construction of the RM project.In this paper,a near-field model,which is based on the Smoothed Particle Hydrodynamics(SPH)method,and a far-field model,which is based on the shallow water equations,are established to simulate the impulse waves generated by the RS deposit at the normal water level of 2895 m.The simulation results are compared with the empirical formula method.The results indicate that the numerical method can accurately simulate the nonlinear flow-solid coupling process of landslide entering the water,and precisely capture the effects of complex terrain during waves propagation and run-up process.This study provides references for assessing the impact of LGIWs generated by RS deposit on engineering safety.

关 键 词：RS堆积体 滑坡涌浪 光滑粒子流体动力学 涌浪传播 大坝爬高 

分 类 号：P642.22[天文地球—工程地质学]