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At present, there have been about 87,000 reservoirs in China, which have took great effect on national economic development. However, the dams have worked for over thirty or forty years, some even for nearly half century. Manydams have been aged, including some high quality engineering. China is one of the countries which have the most amounts of dams in the world and the ratio of dam failure is also front-line in the world. Therefore, scientific seepage monitoring becomes an urgent subject.Based on clarifying the situation of dam monitoring and analysis of the mathematical models, combing with the experience of developing of dam safety monitoring system, it will discuss the principles of automatic system software. Firstly, in this paper, it has shown the development of dam monitoring in and out of the country. And then, it introduced the software from two aspects. I. Seepage model: in this chapter, the affected factors which effect the seepage of dam will be discussed, and then the seepage model will also be developed. II. Integral evaluation system: in this part, it has introduced the theory of integral evaluation system and constructs the structure of evaluation system. At the end of the paper, the software of dam monitoring will be introduced, which will be the embodiment of the research having been discussed above.In this paper, it analysis the data and proved that mutianalysis model is effective in real facts. And the drawing software is also availability in trend analysis.
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