Study On Flood Peak And Scour Depth Of Xitongyu Treatment Project

At present,the improvement of small and medium-sized river course is an important subject.Based on the river course renovation project of Xitongyu,the maximum flushing depth formula of the flow in the dike project is corrected,and the conclusion is drawn.Under the river renovation project to provide some reference.The length of the Tongyu River is 26.1km,the average width of the river is about 20 m,the Xitongyu is located in the hilly area.The hilly area is one of the most fragile areas in China.The special natural geography and geological environment background,which leads to the development of the unique environment Geological problems.Years of gold development has produced a serious problem of mining geological environment,mineral waste slag accounted for land,polluted land is extremely serious.In the middle of the middle and low mountain gold mining,the mining slag is directly stacked on the slope of the river channel.At the end of the channel,many trenches are common in the "upstairs" waste piles,and the vegetation is destroyed.Xiaoqinling gold mine frequent heavy rain,the history of several major casualties of the torrential disasters.1.The theoretical basis and the method of solving the traditional method are analyzed and analyzed,and the sensitivity of the parameters is analyzed from the parameters in the peak flow calculation.The influence of the parameters on the peak flow is obtained and the parameters are modified to obtain the parameters suitable for Xitongyu Calculation parameters of flood flow in small watershed.2.The factors influencing the scouring mechanism of river channel and the influencing factors of river scouring are analyzed and analyzed.Based on the analysis of the particles in the sandy pebble channel of Xitongyu sand and the establishment of the theoretical model,And finally the formula for the maximum scour depth of the water flow suitable for the sandy pebble channel of the West Tongyu sand.3.Though analyzing the characteristics of the local watershed,with reference to the river design standards,and the use of local flood peak flow correction results and revised scour depth calculation formula for the local river management project to make reasonablerecommendations.