南水北调中线沙河渡槽水力学试验研究  

Hydraulics test and study on Shahe aqueduct of Middle Route Project of South-to-North Water Diversion

作　　者：张明恩 杨春治 买巨喆 刘国龙 

机构地区：[1]河南省水利勘测设计研究有限公司,河南郑州450016

出　　处：《人民长江》2013年第16期43-45,共3页Yangtze River

基　　金："十一五"国家科技支撑计划重大项目"南水北调工程若干关键技术研究与应用之大流量预应力渡槽设计和施工技术研究"(2006BAB04A05);南水北调中线干线工程科技项目"大型预应力U型预制槽1:1原型试验和预应力张拉试验研究"(ZXJ/KY/YYL-001)

摘　　要：沙河渡槽全长约11.9 km,由5部份组成。为验证设计,采用水工物理模型与数学模型相结合的方法,对渡槽的水流运动特性进行了研究。结果表明:物理模型试验成果与数学模型计算成果吻合较好;设计流量与加大流量条件下,渡槽的水头损失计算值分别为1.750 m和1.946 m,而水头损失的设计值分别为1.770 m和1.968 m,设计值略大于计算值,水头略有盈余;设计流量与加大流量条件下,渡槽各段的水流衔接良好,无回流现象。Shahe aqueduct is composed of 5 parts with a total length of 11.9 km. In order to provide accuracy basic data for design department, by hydraulic physical model and mathematical model, the research on flow characteristics in the aqueduct is conducted. The results show that the physical model test agrees weU with the mathematical calculation result; respectively, the design water head losses of the aqueduct are 1.77 m and 1. 968 m for design discharge and enlarged design discharge while the calculated value are 1.75 m and 1. 946 m, the design water head losses are slightly larger than the calculated, and the water heads are slightly surplus; under the design discharge and enlarged design discharge, the flow transition of various aqueduct sec- tions is smooth and no baekflow occurs.

关 键 词：水工模型 数学模型 水力学试验 沙河渡槽 南水北调中线工程 

分 类 号：TV672.3[水利工程—水利水电工程]