团山子水利枢纽工程溢洪道模型试验研究

发布时间：2018-04-11 11:15

本文选题：溢洪道 + 消力池　；参考：《大连理工大学》2014年硕士论文

【摘要】：泄水建筑物有很多种类,溢洪道就是经常采用的一种结构。在设计溢洪道时,将工程布置与周围的环境互相结合,充分利用地理条件,布置出一个合理的溢洪道,是十分必要的。本文讨论了紊流数值计算、溢洪道水力学计算,结合团山子水利枢纽工程的实际采用物理模型试验,对溢洪道整体水力特性进行了研究,主要研究内容包括： (1)检查溢流坝可以满足多大溢流量； (2)在溢流时观察各部分水的形态,并绘图； (3)通过特定工况的几个流量泄流,确定消力池的最小长度和深度。以及增加消力墩、尾槛等辅助消能工,降低跃后水深后,对消力池的长度和深度进行优化。如增加辅助消能工,根据消能试验结果确定辅助消能工的结构体型及尺寸； (4)在溢流时,注意溢流坝的每个重要部分是否会遭遇破坏,并对被破坏的部位增强保护措施,在反复试验,确定各项均满足条件； (5)通过每次试验,使溢流坝的两端、闸墩最符合水流的形状,让水流可以顺利通过,同时也可以使水对建筑物破坏减少到最小； (6)采用物理模型试验的方法研究溢洪道的主要水力特性；通过本次试验,希望可以为实际溢洪道建设的工程提供一些参考。
[Abstract]:There are many kinds of drainage structures, spillway is often used as a structure.In the design of spillway, it is necessary to combine the engineering arrangement with the surrounding environment, make full use of geographical conditions, and lay out a reasonable spillway.In this paper, numerical calculation of turbulent flow, hydraulic calculation of spillway and physical model test of Guanshanzi water conservancy project are discussed. The whole hydraulic characteristics of spillway are studied. The main research contents are as follows:1) checking how much overflow flow can be satisfied by overflow dam;(2) observing the shape of each part of the water during overflow and drawing;The minimum length and depth of the stilling pool are determined by several discharge discharge under specific conditions.The length and depth of the stilling pool are optimized by increasing the stilling pier and sill.If the auxiliary energy dissipator is increased, the structure shape and size of the auxiliary energy dissipator are determined according to the results of the energy dissipation test.(4) pay attention to whether every important part of spillway dam will be damaged or not, and strengthen the protection measures to the damaged part, and make sure that all the conditions are satisfied by repeated tests.5) through each test, the piers of the spillway dam are most suitable for the shape of the flow of water, so that the flow of water can pass smoothly, and at the same time, the damage to the building can be minimized by the water.The main hydraulic characteristics of spillway are studied by physical model test.Through this experiment, we hope to provide some reference for the actual spillway construction project.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV632;TV651.1

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