摘要
河道稳定性和可能的极限冲刷深度是影响工程建设的主要限制因素。文章以南沙明珠湾区跨江隧道工程为研究对象,在河道演变分析基础上,通过物理模型试验得出了不利水文组合下的河床极限冲刷深度,并与数学模型和经验公式的计算结果进行比较与分析。结果表明,3种方法得出的极限冲刷成果较为接近,其中物理模型试验成果偏于工程安全,研究结果可为合理确定隧道埋深提供参考依据。
The stability of the river channel and the possible maximum scouring depth are the main limiting factors affecting the construction of the cross-river project.Aiming at the proposed Pearl Bay cross-river tunnel in Nansha,based on the analysis of river channel evolution,the maximum scouring depths of river bed under poor hydrological conditions were get by physical model test,and the results were compared with those of mathematical model test and empirical formula.The results showed that the results of the three methods were relatively close,and the one of model test is inclined to conservative.The research results can provide important reference for reasonably determining the buried depth of the tunnel.
作者
刘中峰
刘达
罗志发
李明
陈晖
LIU Zhongfeng;LIU Da;LUO Zhifa;LI Ming;CHEN Hui(Guangdong Research Institute of Water Resources&Hydropower,Guangzhou 510635,China;Guangdong Provincial Key Laboratory of Hydrodynamic Research,Guangzhou 510635,China;State and Local Engineering Laboratory of Estuary Hydropower Technology,Guangzhou 510635,China;Guangdong Provincial Science and Technology Collaborative Innovation Center for Water Safety,Guangzhou 510635,China)
出处
《广东水利水电》
2023年第11期30-34,共5页
Guangdong Water Resources and Hydropower
基金
广东省水利科技创新项目(编号:2020-16)。
关键词
极限冲刷深度
物理模型试验
过江隧道
河道演变
the depth of limit scour
physical model test
cross-river tunnel
river channel evolution
作者简介
刘中峰(1985-),男,硕士,高级工程师,从事工程水力学研究工作。
