| There were some river in Xin jiang broad and shallow changeable,the flow andthe sediment were unique，where usually happened serious erosion by the stream.this thesis focuses on the flume experiments to simuation broad and shallowchangeable river in Xinjiang，In the meanwhile, the related factors which affecttheerosin strength of the plumes such as rate of flow,gradient of river bed,flowerosion angle and bed sand particle size are researched and analysed in this thesis.,The relation between corrosion strength of plumes and the water flow,gradient ofriver bed is positive that with the increase Single factor variables the erosion strengthof the waterflow increases while the relation between erosion strength of plumes andtBed sand particle size is negative that with the increase Single factor variables thecorrosion strength of the waterflow reduces.After a comprehensive analysis of thesefactors, the formula of the depth od the corrosion depth is got.By the research and analysis of the erosion depth of the physical model of Kertzriver which is typical in the width and depth changeable in Xin Jiang.It is verifiedthat the erosion depth formula got from the more mock-up test make practical senseand the result shows that the values from the formular correlate with theexperimental values.Related coefficient R2=0.7137.The paper showed the tests werecontrolled accurancy,the choice of parameters were comprehensive,The resultscould reflect the characteristics of the broad and shallow changeable river in XinJiang well. |
