Investigation of blast induced ground vibration and air blast around Uşak Kışladağ gold mine

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Date

2018

Author

Tanrıseven, Esra Nur

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The objective of this study is to evaluate the effects of blasting operations conducted in Kışladağ Open Pit Gold Mine on surrounding villages in terms of ground vibration and air shock in the light of commonly used regulations. Moreover, it is aimed to give site specific propagation laws for future blasts and to determine safe explosive amounts that can be blasted at the same time not to exceed safe ground vibration limits in the villages. Kışladağ Gold Mine is located in the middle of three settlements; Gümüşkol, Karapınar and Katrancılar villages. Data are obtained from the monitoring stations located on the paths towards villages. Blasting operations are evaluated under two classes due their different loading and stemming characteristics; production blasts and presplit blasts. For ground vibration and air shock prediction linear regression analysis and multiple linear regression (MLR) analysis are used and their performances are compared by means of statistical parameters. The performances of analyses from both unclassified and classified data according location of blast round in the pit are tested and compared. Different input combinations for multiple linear regression analysis are tested by using scaled distance, charge weight, distance, and elevation difference between blast round and monitoring station. The results indicate that linear regression analysis has better performance for ground vibration prediction and blast round location affects the ground vibration levels. Whereas, for air blast prediction MLR is a better tool and elevation difference has an important effect on air blast levels.

Subject Keywords

Gold mines and mining., Ground vibration., Blast effect.

URI

http://etd.lib.metu.edu.tr/upload/12622657/index.pdf
https://hdl.handle.net/11511/27801

Collections

Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

E. N. Tanrıseven, “Investigation of blast induced ground vibration and air blast around Uşak Kışladağ gold mine,” Ph.D. - Doctoral Program, Middle East Technical University, 2018.