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- W2374047440 abstract "In this paper,in view of the serious conditions of ground pressure(rock burst,etc) appeared in Hongtoushan copper mine,we established a microseismic monitoring system in the mine,and analyzed the relationship between the microseismic activities and mining operation,and the spatial distribution of microseismic events,applied the energy index and apparent volume to forecast the occurrence of large scale rock fracturing.The location results using manual fixed-point blasting show that the location error of microseismic monitoring system is less than 10m,which suggests that the system can reach the requirement for ground pressure disaster monitoring in mine.Microseismic activities can be divided into two quiet periods and three active periods.There exits the incubation and early-warming periods before the large scale rock fracturing.The quick drop of energy index and the continuous increase of apparent volume can be used as the precursory characteristics of rock burst and large scale rock fracturing.Through the cloud charts of energy index and displacement,the potential danger areas of ground pressure disasters can be judged,which can be used to guide the safety management and ensure safety production in deep mine." @default.
- W2374047440 created "2016-06-24" @default.
- W2374047440 creator A5021772555 @default.
- W2374047440 date "2012-01-01" @default.
- W2374047440 modified "2023-09-25" @default.
- W2374047440 title "Studies on Establishment and Application of Microseismic Monitoring System in Hongtoushan Copper Mine" @default.
- W2374047440 hasPublicationYear "2012" @default.
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