Calculation Of The Water Surface Line In The Management And Planning Of The Key Section In Weitaohe River

Flood disaster is one of the most important natural disasters, global climate change and the impact of human activities, to a certain extent exacerbated the flood loss. Therefore, At home and abroad has always attached great importance to flood control and disaster reduction work.Increase the construction of water conservancy infrastructure, is an important measure of flood control and disaster mitigation projects, in fact, increase the construction of water conservancy infrastructure, is the priority among priorities of our country Twelfth five-year planning. Dalian city also attaches great importance to this work, including the construction of water supply and drainage, flood control and water conservancy facilities. In accordance with the overall planning, flood storage and to raise the comprehensive management, integrated, and the flood disaster to a minimum principle, To further strengthen the medium and small rivers in Dalian river planning management work. At present, Dalian city has completed the river Channel management work mainly concentrated in the Biliuhe River, Fuzhouhe River, Yingnahe River and other large rivers, Most of the small and medium-sized rivers in Dalian is still in the original state of the channel, the small and medium-sized rivers overall losses higher than the losses of large rivers, therefore, strengthen the management of small and medium-sized rivers is very necessary.The set of Weitaohe River standards are not high, in the downstream along the narrow severity, arable land and rural, such as flood and will bring huge losses to the local people. To implement the central No.1 document spirit, at the same time in order to adapt to urban and rural modernization and improve the life quality of residents’ needs, promote social and economic sustainable development in Dalian. Based on the problems existed in the Weitaohe River, carried out a systematic plan of the Weitaohe River. According to the standard of governance, promote ecological construction of river basin on the protection of coastal people life and property safety, and improve the regional production and living environment is of great significance.This paper is based on the Weitaohe River management planning project in Dalian, in the process of the Weitaohe River management planning, The focus of this paper is to derive the design flood process in the Weitaohe River planning is deduced and water line. Based on the profile of the Weitaohe River basin, hydrological data, geological survey data of investigation, analysis and research, derive the design flood planning section, and using the MIKE 11 software to get the Weitaohe River key river water line, and on this basis to determine the crest elevation. The work of the Weitaohe River to the quantitative analysis of channel flow capacity, river flood control safety hidden trouble diagnosis and determine the scale of the project, as well as the project has a guiding significance. The governance of the Yellow River, not only the benefits of flood control and disaster mitigation, at the same time to protect the river trend stable, curb soil erosion and dust harm, will play an important role, Provide a reference for the planning and management of Dalian city and other small rivers.