Research On Safety Evaluation For Earthrockfill Dam Automatic Monitoring System

The construction of earth-rockfill dam automatic monitoring system is a complex systems engineering which not only should control MCU, realize the function of data distance transmission, but also includes the monitoring and alarm problems based on water conservancy knowledge and statistic theory. On the basis of clarifying the current situation of dam safety monitoring in the world, combined with the automatic monitoring system's construction for Wen Yuhe reservoir, the equipment selection, system integration, alarm system, software exploration etc. are systematically researched in this paper, with the cut-in point seepage monitoring, the visual angle safety evaluation.Based on the equipment selection and system integration, the paper sets up a complete set of evaluation system for running state, failure diagnosis, wide error elimination, abnormity inspection and nicety test of value involved. After discussing the safety status of Wen Yuhe reservoir and the monitoring target's solution of statistical model, the paper establishes a multilevel alarm system, which is suitable for the project, advantageous for the magnitude data analysis and latency danger detection in time.Consulting the research fruit of some literature in our country, the genes selection work based on influence factors of statistical forecasting model isfinished. It is necessary to take new modeling idea into the seepage study of earth-rockfill dam, which is complex and difficult. The seepage forecasting results of artificial neutral network B-P model developed by the number calculation software MATLAB, are better than that of stepwise regression model, which showed the superiority of B-P model when the condition is complex and not clarified. The traditional analysis methods of monitoring data are enriched by a series of models, in which the potential theory, flux of unit, coefficient of seepage defended and temperature monitoring are delegates.The cause analysis of formation based on expert system theory is the paper's characteristic: the human-machine interface making the best of the system chart resource and the database memory based on binary tree method, make the relation analysis among distinct point possibly. And it also provides a new data analysis model for the reservoir administration.Today, with the changing quickly computer technology and in-depth subjects chiasma, the traditional safety monitoring work is being endowed with much more new content. The principium safety evaluation work offers technology supports strongly for the construction of automatic monitoring system in Wen Yuhe reservoir.With the step up knowledge about earth-rockfill dam's particularity and automatic system's complexity, encircling equipment security, data veracity, alarm in time, model reliability, conclusion rationality etc, the deeply persistive research will help a complete actualizing scheme come in to being, and possess important realistic meaning for the abroad communication construction of water conservancy all over the country.