旗岭渡槽槽墩防护方案流态及流速分布分析  

Analysis on Flow Pattern and Flow Velocity Distribution of Protection Scheme for Qiling Aqueduct Pier

作　　者：周星毅 张磊 杨柳 张发迪 ZHOU Xing-yi;ZHANG Lei;YANG Liu;ZHANG Fa-di(POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)

机构地区：[1]中国水利水电第十四工程局有限公司,云南昆明650041

出　　处：《云南水力发电》2022年第9期200-204,共5页Yunnan Water Power

摘　　要：水流被旗岭渡槽5号槽墩的压缩和阻碍,使槽墩周边流场发生较大变化,从而造成槽墩周边冲刷,结合《东莞市运河综合整治石马河流域干流旗岭水闸改扩建工程水工整体模型试验研究报告》(以下简称《水工模型试验研究报告》),经旗岭渡槽槽墩防护原方案与优化方案流态及流速分布分析对比,椭圆形围护方案条件下旗岭水闸扩建闸段过流条件相对更加均匀,且5号墩周边防冲刷效果较好。以石马河流域综合治理工程旗岭渡槽5号墩围护方案为研究对象,总结出类似槽墩保护工程优化围护方案形式。Water flow is compressed and hindered by No.5 slot pier of Qiling Aqueduct,which makes great changes in flow field around the slot pier,thus causing scouring around the slot pier.Based on the Hydraulic Integral Model Test Report of Qiling Gate Extension Project on Shima River Basin of Dongguan Canal Comprehensive Regulation("Hydraulic Model Test Report"for short),this paper analyses and compares the flow pattern and flow velocity distribution of the original scheme and the optimized scheme for the protection of Qiling aqueduct pier.Under the condition of elliptical enclosure scheme,the overcurrent condition of expanded gate section of Qiling sluice is relatively more uniform,and the scouring prevention effect around Pier 5 is better.This paper takes pier No.5 protection scheme of Qiling Aqueduct for comprehensive treatment project of Shima River Basin as the research object,and summarizes the optimized protection scheme form of similar pier protection works.

关 键 词：水工模型试验 流态及流速分布 分析对比 过流条件 槽墩优化围护方案 

分 类 号：TV131.61[水利工程—水力学及河流动力学]