Study on damage level and reinforcement sequence of earthquake-damaged reservoirs based on improved grey clustering
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Abstract:
There are many damage types of earthquake-damaged reservoirs, involving complex factors with strong interconnections. It has become a very realistic and urgent problem as to how to determine the damage quickly after the earthquake, so that the follow-up work on reinforcement can be conducted reasonably and orderly. In view of the specific problems with the selection of whitening weight functions and determination of clustering principles, we adopted the new idea of mixed triangular whitening weight function, put forward a method to analyze and evaluate earthquake-damaged reservoirs based on improved grey clustering, and applied the method to earthquake-damaged reservoirs in Sichuan. Analysis and evaluation results showed that the method has a simple structure, is able to sort the reservoirs by damage level rapidly and effectively, and thereby determine the reinforcement sequence of the reservoirs as well as and the critical procedures. Through comparison of various evaluation methods and analysis of the actual seismic damage, it was drawn that the improved gray clustering method is reliable, and can be well used in the analysis and evaluation of earthquake-damaged reservoirs. It is of great significance for preventing earthquake secondary disasters.
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