Rivers Shock Wave And Above Water Line's Application In The Sluice Building Border Layers Of Size's Study And Design In High Dam

With the development of worker's theory of the dam and science and technology, the construction of high dam prevails day by day, in order to meet the demand that people increase day by day, the dam is increasing constantly high, the size of high dam changes with each passing day, high dam water flow state more and more difficult to control, so high dam water flow state sluice research, building of object type wave in the outstanding position more and more.In assigning , release floodwater building person who select and assign very much important in high dam pivot, the way is mainly as follows, that it releases floodwater The dam body releases floodwater and releases floodwater with the bank. No matter dam body release floodwater or bank release floodwater, is it consider high-speed rivers fluid and sluice border layers of relation issue of size, water conservancy project of building to want. Because of the designing requirement, release floodwater building have more abduct or curved way suddenly, this has rivers shock wave unavoidably, the rivers shock wave will cause the single wide flow not to be distributed evenly, the flow state is unfavorable; Weir release floodwater form hole, middle hole, underport of building in WES, reason size curve very much important under it, in this respect forefathers make much work already, but not yet no as one wishes even of the high design of dam of today. If does not control, there is very great danger to the building , have an adverse effect on design of the building lightly, heavy to can produce empty to melt , not empty to lose, destroy to the building. In the course of letting out Hongdong and releasing floodwater, let out the top of Hongdong to line with and build and is stripped by the water body frequently, and then the water body permeates massives, influence the stability of the whole massif.Is it control rivers shock wave to want, must is it study to wait for to various kinds of water conservancy characteristic, rivers of shock wave at first. For shrinking the water conservancy characteristic of the rivers of section, is a water conservancy characteristic of the straight shock wave of rivers too, forefathers have riper understanding, there are such people as his one , etc. while studying the shock wave and straight perturbation wave first, proposeoblique to jump theory to water, better settlement shock wave wave high with calculation problem, wave of corner, and then TianShiHao, FangYanJun, etc. have proposed giving up the wave theory on this basis, with it being wave high and wave corner compared with oblique to jump to water theory have better revision in order to shock wave appeared to derive. But shoulder the shock wave to the rivers, namely spread the water conservancy characteristic of the rivers of section, there is no understanding of intact maturity. This text uses the theory knowledge of hydraulics of routed dam because of two kinds of theories in the front, use nature of continuous wave and discontinous wave according to its rivers characteristic, is it appear it spread horn and spread sections of equation of relation, rivers of characteristic to derive, there was further understanding compared with before.Visit the analysis and research of the curve on the top of the dam, quote several objective control points in forefathers' research results on the basis of meeting its size design condition, use rational assuming, try one's best to simplify the question, make the parameters used try one's best to be few, is it appear get up reasonable curve equation to derive finally, and successful oval curve compare with whom forefathers use, draw more satisfactory result. Because of the experiment condition reason, visit the size on the top of changing the dam, very downstream curve of dam is inconvenient, carry to dam pressure line, low reaches of section is it compare to make, draw satisfied result only.Let out Hongdong top curve size is it study to design, in the minimum, namely he is punished for two parts it, section AB is it is it ask difficult point that solve with velocity of flow tendency function to want to avoid, visit the analysis and research of the curve with dam, because several control point its have dam visit several of analysis and research of curve obvious, the ones that must appear finally are an equation group: Five unknown quantities, four equations, take the place of into the corresponding parameter in the project is used, can ask out its curve equation ; The asking of section BC is solved on the basis of basic total mark type of the flat rectangle channel, utilize the characteristic of the total mark type, will get up and simplify, will use total mark meaning finally, can approximate to is it produce curve equation of section BC to ask.