DBPapers

SAFETY EVALUATION OF A HISTORIC PLACE AND SCHOOL CLOSE TO LIMESTONE QUARRY BLASTS

AUTHOR/S: ERCIKDI, B., KESIMAL, A., YILMAZ, E.
Sunday 1 August 2010 by Libadmin2004

4th International Scientific Conference - SGEM2004, www.sgem.org, SGEM2004 Conference Proceedings/ ISBN: 954-918181-2, June 14-18, 2004, 181- 192pp

ABSTRACT

This study investigates the potential environmental impact of ground vibrations
produced from blasting operations performed at Araklı-Taşönü limestone quarry
where the school, mosque, historic place and village houses are situated. During the
study, the parameters of scaled distance were recorded carefully, and the groundvibration
components were measured at different locations by suitable monitors for 31
blast events.
From the statistical analysis of the results, the general peak particle velocity
equation was constructed with a coefficient of determination 0.68 in order to predict
the ground vibrations resulting from the blasting activities in the quarry. Higher
coefficients of determination were obtained when the data were compared for each
bench. Using the general equation obtained, it was aimed to establish a scaled
distance table, which will be used as a guide for future blasting operations to adjust
blasting parameters and hence to reduce environmental impact. It was found that
3.2%, 83.8% and 13% of blast induced ground vibrations had a frequency of 5-12 Hz,
13-40 Hz and higher than 40 Hz, respectively. The intensity of the air blast in all
measurements was recorded below 140 dB, which is the level of human annoyance.