大型渡槽动水压力离心模型试验研究  

Centrifugal model tests on dynamic water pressure in large-scale aqueducts

作　　者：曲树盛 张宇亭[1] 安晓宇 聂智超 甘旭东 QU Shusheng;ZHANG Yuting;AN Xiaoyu;NIE Zhichao;GAN Xudong(Tianjin Research Institute for Water Transport Engineering,Ministry of Transport,Tianjin 300456,China;Anhui Provincial Group Limited for Yangtze-to-Huaihe Water Diversion,Hefei 230601,China)

机构地区：[1]交通运输部天津水运工程科学研究院,天津300456 [2]安徽省引江济淮集团有限公司,安徽合肥230601

出　　处：《岩土工程学报》2024年第S01期259-263,共5页Chinese Journal of Geotechnical Engineering

基　　金：中央级公益性科研院所基本科研业务费专项资金项目(TKS20240401)。

摘　　要：以引江济淮工程淠河总干渠渡槽为参考研究对象,采用离心机振动台对刚性渡槽在简谐荷载激励下的动水压力进行了试验研究,并将试验结果与常用的简化模型的计算结果进行了对比分析。试验结果表明:动水压力与加速度幅值呈线性相关,与加载频率、水深呈非线性相关;离心模型试验可以准确的模拟动水压力及流固耦合作用,可以为水弹性问题的研究提供新的分析方法。Taking the main canal aqueduct of Pihe River of the Yangtze-to-Huaihe Water Diversion Project as a reference research object,an experimental study is conducted on the dynamic water pressure of a rigid aqueduct under harmonic excitation using a centrifuge shaking table.The experimental results are compared and analyzed with those of the commonly used simplified models.The experimental results show that the dynamic water pressure is linearly correlated with the amplitude of acceleration,and nonlinearly correlated with the loading frequency and water depth.The centrifugal model tests can accurately simulate the dynamic water pressure and fluid-structure coupling effects,providing new analytical methods for the studies on the hydro-elasticity problems.

关 键 词：大型渡槽 水弹性模型 离心机振动台 动水压力 

分 类 号：TU432[建筑科学—岩土工程]