Research Of Flood Influence For The Extension Project Of Ash-crossing Bridge Of Sichuan Bashu Jiangyou

Through the usage of the materials from the flood peak discharge of the hydrologic stations nearby, the flood flow and influence of the river tendency stabilizing the flood of Sichuan Bashu Jiangyou Coal-Fire extension project are demonstrated and studied. Through adopting hydrological analysis method, the peak flood of the cross of ash-crossing bridge are calculated, such as once in 100,once in 50,once in 20,and once in 10. The adopting of the empirical formula and the actual analysis, the backwater in front of the bridge, the eroding of the riverbed and the ability of the draining flood are analyzed, and the impact of the bridge on dredging waterway project are also approached based on the mentioned above researched results.