Comprehensive evaluation method for putting small scale embankment dam out of service

Abstract

The invention discloses a comprehensive evaluation method for putting a small scale embankment dam out of service. The method comprises: through the simulation of the factor indexes influencing the out-of-service of a small scale embankment dam, determining the index system for evaluating the out-of-service of the small scale embankment dam; referring to the engineering safety evaluation grades to determine the out-of-service evaluation grades of the small scale embankment dam; according to the quantitative and qualitative methods, determining the evaluation values of the bottom layer evaluation indexes of the four-index evaluation index system featuring the engineering safety, the ecological environment, the social environment and the economic factors; according to the subject weight and objective weight integration method, determining the weights of the evaluation indexes for the small scale embankment dam; based on the evaluation values of the bottom layer evaluation indexes and through the linear interpolation method, determining the membership degree of the bottom layer evaluation indexes to the evaluation grades; and according to the final membership degree of the out-of-service indexes of the small scale embankment dam, determining the out-of-service grade of the small scale embankment dam according to the largest membership degree principle. According to the evaluation method, a plurality of measurement parameters are introduced; the measurement method is efficient and can effectively evaluate whether the small scale embankment dam should be put out of service or not.

Description

technical field [0001] The invention relates to the technical field of earth-rock dams, in particular to a comprehensive evaluation method for decommissioning of small-scale earth-rock dams. Background technique [0002] As one of the important infrastructures of the country, the reservoir dam has long been responsible for important tasks such as flood control, water supply, irrigation, power generation, and shipping, and has played an important role in the country's economic and social construction. At the same time, the safety of the reservoir dam is related to It is a major event for the stable development of society and the safety of people's lives and property. The Chinese government has always attached great importance to dam safety management, and has taken ensuring the safe and efficient operation of reservoir dams as the top priority of water conservancy work. [0003] Among the more than 87,000 dams currently built in my country, more than 90% were built in the 19...

AI Technical Summary

Problems solved by technology

However, my country has only solved the problem of large, medium and key small dangerous reservoirs at this stage, and there are still a large number of small reservoir dams, especially some small earth-rock dams with serious diseases and dangers, which urgently need to be strengthened

In recent years, with the impact of global climate change, some extreme weather conditions have occurred frequently, and flood disasters have occurred frequently, which has exacerbated the danger of these small and dangerous earth-rock dams, resulting in new engineering damage and new safety hazards. The power generation function has also been basically lost

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