The Optimization Of Reservoir Dam Research In Fenhe River Middle And Lower Reaches Of The Ecological Engineering

River is one of the important resources and the environment bearing the modern city,it not only has an important role in the development of city’s survival,at the same time,is an important factor on influence the city image and beautify the urban environment.Urban river is not only the flood prevention,drainage and disaster mitigation,water diversion of qing dynasty,water irrigation,the basic function such as inland shipping,still should shoulder to beautify the urban environment,adjust the small watershed climate,balance regional ecological system,and other functions.The Yellow River is the first river in Shanxi Province,the second largest tributary of fenhe,it contains rich natural resources,production conditions,is the political,economic and cultural center of Shanxi Province.Due to the rapid development of economic society and the rapid population growth,the ecological environment in the basin was seriously damaged.In the 13 th five-year plan,the provincial government formulated the major strategy of ecological restoration of fenhe river basin.This paper is based on the optimization design of water dam in the middle and lower reaches of shanxi river.This paper is based on the research of river management and water dam in China and abroad,in the light of the practice of ecological management project in the middle and lower reaches of fenhe river,the following research is carried out:1)On the basis of analyzing the principle and characteristics of hydraulic lift dam,Using finite element analysis software ansys to analysis the dam surface in contact with the support bar,dam surface size,dam surface Angle was laid on the influence of the structural characteristics of the hydraulic elevator dam stress.The overall structure characteristics of the 4m high hydraulic lift dam recommended by the design unit are analyzed,and the solution is proposed for the non-safety factor.2)This paper analyzes the flow characteristics of the hydraulic lift dam at the top of the dam,the flow of flow and the flow of the collapse.Using Visual Basic 6.0 and SQLSever2000 to write the hydraulic lift dam over flow flow calculation procedure,and analyze the flow characteristics of different operating conditions.3)According to the design principle,function,hydraulic lifting and closing system of hydraulic control system and the requirements of computer electrical control system,Design hydraulic system flow and hydraulic control system structure,choose control system main hardware.4)On the basis of these studies,To the hydraulic design of the hydraulic elevator dam system,using kingview software for the development of the hydraulic control system,based on the flow calculation results,engineering daily operation control and management model is put forward.In actual application of hydraulic elevator dam has many advantages,but the concept and practical application due to its time is shorter,now about the theory of hydraulic elevator dam data is less.This study aims to more than on the basis of optimization study,summarizes the theory of experience,so as to shanxi fenhe river basin ecological restoration engineering and river dawen,hutuo river and so on seven big river basin of the construction of the ecological restoration project to provide technical support.To different work environment(more sediment and frozen),different scales,different types of hydraulic elevator dam structure analysis,the formula of flow experiment is the next step research direction.