Analysis Of Influencing Factors Of Fishway Engineering Quality ——A Case Study Of Jiacha Fishway Engineering

Development and construction of water resources and hydropower engineering tend to be cut off with reproductive migratory fish upstream waters,so must have security role of fish passage facilities construction engineerings.Fish passage facilities construction to minimize the influence of the engineering construction for fish survival environment,including fishway engineering is for the fish migratory habits back successfully built dams and channels.Through summarizing fishway operation problems at home and abroad,found the fishway after operation there is a lot of quality problems.The quality problems are mainly manifested in the elevation,flow,shape,position,gate opening and closing of the fishway inlet and outlet design;There are differences in the relationship between the fishway inlet and outlet water level and the power station operation;The ecological habits and aquatic environment of fish-passing objects were not studied deeply;There are some deficiencies in the design of fishway luring facilities,auxiliary facilities,monitoring equipment and the study of pond flow field;Fishway operation management resources and the emphasis is not enough,difficult to play the fishway scientific research efficiency,etc.This article stand owner side,how to improve the quality of whole life cycle of fishway engineering construction management level,avoid the waste of quality management resources and capital,maximize fishway engineering ecological benefits?Based on the above problems,this paper identifies the factors influencing the construction quality of fishway engineering in the whole life cycle;Build the fishway engineering quality influence factor analysis model;Taking the fishway engineering of Jiacha as an example,the influencing factors of fishway engineering quality are comprehensively identified and the relationship between the influencing factors is analyzed,and the quality control measures are formulated according to the influencing factors,providing guidance for quality management.The research achievements of this paper include:Firstly,The influencing factors of construction quality in the whole life cycle of fishway engineering were identified systematically;Secondly,According to the fishway engineering construction procedure,the concept of fishway engineering whole life cycle construction was defined,which laid a foundation for the subsequent analysis of influencing factors of fishway engineering quality;Thirdly,Based on the theory of interpretive structure model and fuzzy comprehensive evaluation model in system engineering,the influencing factor analysis model of fishway engineering quality is constructed;Fourthly,Tested Jiacha fishway engineering,for example,to identify the tested fishway engineering quality factors of the system analysis the relationship between the factors affecting the quality,the fishway is obtained quality management should pay attention to the quality of the preparation stage influence factors,the second is the construction stage,the conclusion of the last is the end stage.Among them,quality influencing factors in the preparation stage S₄（laws and regulations stipulated by the state and regulations related to fishway construction）,S₁（requirements for fishway construction by the competent department of ecological environment）and S₂（positioning and attention paid by the construction management party to fishway construction）are the key influencing factors for the quality management of the fishway engineering.