| As one of the world Chinese middle and small rivers in most countries, in addition tothe river, Liaohe, Haihe River, the Haihe River, Huaihe River, Yangtze River,the flowersseven River main stream and its tributaries of the river in a nation, Del still has manysmall and medium-sized river. Over the years, the governance of rivers has been thesubject of extensive idea state, but the disaster prevention and management of small andmedium sized river is slow,medium and small rivers no rectification or rectification ofmany low standards,engineering level difference, flood disasters, so small andmedium-sized rivers governance work has been crunch time. This paper is aim to riverregulation in Zunhua city Hebei Province, Li River, a tributary of the Shuangcheng Riverhave done.In recent years, the Shuang cheng River cross-strait development soon, tailingsdischarged into the river, the surrounding residents dumping phenomenon to have occurredin the river, river flood control embankment has in complete situation, exist in name only.At present, the capacity of river flood is only less than5years. The Shuangcheng River areput forward mainly through dredging,dressing on the river section, dikes and dikesheightening and solid and other engineering measures, the restoration of river flooddischarge normal release flood waters ability to solve the problem of poor, ensurecross-Straits urban flood control safety, ensure the sustainable development of agriculturalproduction, the flood control standard recovery to10years.An important step in the Shuangcheng River rectification work is for water line,waterline calculation can be obtained through flow capacity, security risks exist,determine thescale of the engineering construction, and guide the design of the river. Its accuracydetermines the river regulation engineering quantity,investment, and the safety of river, theproblem of stability. So this paper water line calculation section of the Shuang cheng Riverto take water hydrology design jointly developed by the army corps of engineers todevelop America Hydrologic Engineering Center of the HEC-RAS software and theGuangdong Provincial Department of water conservancy construction management center,Guang zhou voavon software limited calculation software HydroLab and analyzed by thecomparison of natural river water surface line system V2008software, softwaredevelopment studio in water the three kinds of software, are used for river riverbottomelevation and current water line and through the three methods to calculate the data ofcomparative analysis, combined with various pile of cross-sectional diagram, excluding thereasonable data, reducing channel status of real. According to the actual condition of theriver and the production and living conditions of the river on both sides of the riverregulation project design reasonable, design including the river is river, slope, embankmentgravel road and drainage holes etc.. According to the design surface engineeringconstruction.Finally, the advantages and disadvantages and the application situation summaryanalysis of the entire water line calculation process and describes a variety of methods, andputs forward some constructive suggestions after the small and medium-sized rivers and scheme. |
