Sediment Diversion Channels Capacity Analysis

Effective development and utilization of water resources is inseparable from Hydro building,the water conservancy project include: retaining structures,water intake structures,outlet structures.Mainly used to intercept the flow of water retaining structures,the formation of the high-water reservoirs or Yong,such as dikes,sluices,dams,etc.That water intake structure,the main water conservancy facilities,such as open channel,intake,irrigation headworks and so on.Mainly used for flood discharge structures,sediment,emptying water,such as sluice gate,sluice tunnel,spillway and other river bank.In many hydropower project,the role of water intake structures is evident,especially for some of the power stations,water diversion capacity building directly determines the strength of the power generation capacity and power plant life.Depending on the demand for power generation,irrigation,water supply,and when the water from the river,the construction of water diversion project is also.This paper mainly uses physical modeling approach,typical of a river diversion canal water system for analysis and discussion.The ability to draw water and sediment scope of such channels.For this study the content and purpose of the testing process is built around the main validation test water and sediment tests conducted channels.Water during the test does not consider the impact of sedimentation.In ensuring that the river ecological flow requirements of the premise,this time arranged and channel water diversion system capacity building to meet the basic needs of downstream water stations;by adjusting the intake and flushing sluice opening degree can meet electricity needs while guaranteed portion of flushing flows.Test shows the first hub body building diversion system design is reasonable.In a case with a five-year return period flood project,when it reaches the peak flow,the largest amount into the sand,but this time we can make of sediment flushing sluice channel via open and close intake of appropriate methods erosion,so you can ensure the normal operation of the channel.At this point,although Of sediment silt part in internal channels,but do not affect the overall diversion channel capacity,to meet the required amount of water downstream of the power plant.After decades of flood process,to meet the full flushing and flushing sluice meet electricity demand unrealistic,but according to the test after analysis of the relevant data that can be adjusted to meet the flushing sluice opening of the electricity demand in flush with excess sand,but can be used for flushing the remainder of the water is relatively small,Channels siltation inevitable.