Scholarly record

EVALUATION OF DAMAGE RISK OF THE GROUND VIBRATION INDUCED BY BLASTING IN A QUARRY

A. Kahriman, A. Karadogan, G. Tuncer, S. Gorgun, S. Guven, A. Ferhatoglu, T. Gezbul

Abstract

With the general trend toward larger blasts in mining, ground vibration and air blast problems and complaints have significantly increased. With increasing environmental constraints on the levels of disturbance induced by blasting operations upon nearby residents, there is an increasing need to be able to design cautious blasting with greater precision. Therefore, determination of maximum amount of explosive per delay for a certain distance especially in large blasts is of great importance for the elimination of these environmental problems. Estimating of particle velocity and other components of ground vibration with reliable approaches will give important facilities to the blasters. This paper presents the evaluation of damage risk of the ground vibration induced by blasting, which was performed at HalД±moru Limestone Quarry which supplies a cement plant in Turkey. The blasting activities caused increasing complaints of the neighbouring villages due to ground vibration. In order to prevent the damage to the buildings located nearby this site and to reduce these complaints, it was necessary to control the blasting by estimating the level of vibration. Within the scope of the study, for the prediction of the peak particle velocity and determining the slope of the attenuation curve together with the maximum allowable charge per delay by analyzing the damage risk for the test site, ground vibration components were measured for 5 blast events using 4 different types vibration monitors (2 White Mini-Seis, 1 Instantel Blastmate and 1 Instantel Minimate Plus Models) considering the directions of the villages.

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