Research On Earth-rockfill Dam Safety Assessment Method And System Development

As a traditional dam type, earth-rockfill dam has many advantages and plays play a vital role in the contemporary dam construction。With the passage of dam operation period, the impact of external conditions and its own several birth defects, the factors which constraint dam safety increasingly highlighted。According to statistics, there are about 30 thousands of dams in dangerous in China。Therefore, to carry out safety assessment work scientifically and systematically, not only directly benefit to enhance the effectiveness of dams and reduce the risks of its downstream, but also help to improve the level of dam safety management and safety production。This paper firstly analyzes the current state of the security status of dam, describes the main elements of the existing evaluation methods and technical routes about dam safety assessment。Introduces the basic theory related to establishment of dam safety assessment system, relevant principles and multi-index evaluation method, the framework of the dam safety evaluation system。This paper introduces the knowledge of Fuzzy comprehensive evaluation, including the establishment of index system factors set, weight set and evaluation set, in accordance with the requirements of the AHP weights of evaluation factors, and use of the entropy method to optimize weights。Detailed description of the evaluation process of the evaluation factors embankment reference criteria。In the paper, using object-oriented programming languages VB and Access database, developing the dam safety evaluation system software。Status of the system provides the following features query, the reference standard, weight calculation, the result of fuzzy evaluation, and many other features。Finally, the software is used to evaluate a earth-rockfill dam safety evaluation process in Nan yang City, the results to reflect their true level and achieve good results。...