Research On Safety Evaluation Of The On-active Service Sluices And Hoists

This text regards the security of the gates and hoists as the research object. The requirement to carry out effective safety management for gates and hoists becomes more and more exigent. This dissertation uses the theories and methodologies of safety science, system science and indicators etc focusing the sluices and hoists safety evaluation as its investigation topic, studying the core Problems in the sluices and hoists evaluation application. For some reasons , such as Programming , construction, aging, management, there have been some defects in many existent sluices and hoists inevitably. The defects in some sluices and hoists are very serous which have infiuenced the benefits of the sluices and hoists, threatened the lives and belongs of the people living in the downstream and restricted the growing of economy. So the safety appraisal of sluices and hoists should be done in time in order to sufficiently know the situation of the sluices and hoists and give direction to the decision making of the goverment and the design of the reinforcement. Then the work of reinforcement can be carried out step by step.This dissertation is composed of four Parts. The first part analyzes the situation and quality of sluices and hoists security as well as factors affecting sluices and hoists security condition. Factor influencing sluices and hoists security vary, including natural factors, artificial factors, historical factors, contemporary factors, and so on.The second part reviews the phylogeny of safety science theories, outlines the fundamental theories of safety science principles systematically, clearly defines the basic concepts of the sluices and hoists safety evaluation.In the third part, a fuzzy mathematics method, multi-objective and multilevel fuzzy optimization model, is applied to the determine the nature and ration evaluation of security of the sluices and hoists.In the fourth part, according to the relationship between all factors and sluices and hoists security, after analyzing these factors' specific impact, this paper brings forward an evaluation index system describing sluices and hoists security, quantifies each index, and calculates the weight of each index by the use of Analytical Hierarchy Process(AHP).In the fifth part, the safety evaluation model is created.