岷江老木孔枢纽库区船行波对乐山大佛的影响  

Impact Analysis of Boats’ Travel Waves in Minjiang Laomukong Reservoir on Leshan Giant Buddha

作　　者：倪志辉 张凯[1] 吴立春 NI Zhi-hui;ZHANG Kai;WU Li-chun(Southwestern Research Institute of Water Transportation Engineering,Chongqing Jiaotong University,Chongqing 400016,China;Key Laboratory of Inland Waterway Regulation Engineering,Ministry of Construction,PRC,National Inland Waterway Regulation Engineering Research Center,Chongqing Jiaotong University,Chongqing 400074,China;Chongqing University of Education,Chongqing 400067,China)

机构地区：[1]重庆交通大学重庆西南水运工程科学研究所,重庆400016 [2]重庆交通大学内河航道整治技术交通行业重点实验室国家内河航道整治工程技术研究中心,重庆400074 [3]重庆第二师范学院,重庆400067

出　　处：《水电能源科学》2020年第11期94-97,66,共5页Water Resources and Power

基　　金：湖南省交通运输厅科技项目(201830);内河航道整治技术交通行业重点实验室开放基金项目(NHHD-201514)。

摘　　要：乐山大佛位于拟建的岷江老木孔枢纽水库回水变动区,其水域条件受枢纽运行方式的影响较大。为分析建库前后上、下行船行波对乐山大佛的影响,建立了非正交曲线坐标下的平面二维水流数学模型,并对该模型的水位和流速进行了验证,验证结果表明此模型能较好地反映河段的水流运动情况。利用经验公式计算了建库前后岷江乐山大佛水域出现的最大船行波下滚深度和最大船行波波高。计算结果表明,建库后岷江乐山大佛水域由于行船和风壅引起的最大波高低于乐山大佛平台,基本上不会对其产生不利影响。Leshan Giant Buddha is located in the proposed Minjiang Laomukong reservoir backwater change zone,and the hub operation mode has large impact on the water area condition.In order to analyze the influence of upward and downward traveling waves before and after building a reservoir,aplanar two-dimensional flow mathematical model under non-orthogonal curvilinear coordinates was established,and the water level and flow velocity of the model were verified.The results show that the model can reflect the water flow well in the reach of the river.The empirical formula was used to calculate the maximum vessel row wave depth and maximum ship wave height of Leshan Giant Buddha in Minjiang River after the construction of the reservoir.The calculation results show that the maximum wave height of the great Buddha water in leshan river in the minjiang river after the construction of the building is lower than that of leshan giant Buddha platform,and it will not have any adverse impact.

关 键 词：乐山大佛 船行波 平面二维数学模型 数值模拟 

分 类 号：TV87[水利工程—水利水电工程]