Paper Contents
Abstract
The Research paper aims to evaluate the ground vibrations and Air overpressure noise (AOP), caused by blasting in Jagannathpur Open-cast coal mine The blasting technique is mainly used for breaking the rock mass. It is also required to control blast-induced ground vibrations for the safety of nearby structures and habitats. The present study aims to examine the ground vibrations and Airoverpressurenoise produced by blasting, which are of serious concern to mine operators as well as the nearby inhabitants. Fifteen field-scale trial blasts were conducted and recorded to measure ground vibrations and Air overpressure produced by blasting in a Jagannathpur open cast coal mines of Bhatgaon Area. The regression analysis have performed of data obtained during experiment to predict the peak particle velocity (PPV) and Air overpressure (AOP) with distance between the blasting site and measuring station, charge per delay and scaled distance as the input parameters. The correlation coefficient (R2) is found 0.7955, which implies a strong relation between input and output parameters. The range of dominate frequency recorded fall within 3-35Hz. Standard by Director General of Mines Safety (DGMS) Circular have used in study to analyse the damage potential to nearby structures. It has found that the PPV values are well within the threshold limit Keywords: Blasting; Ground Vibration; Air overpressure PPV; Regression Analysis.
Copyright
Copyright © 2023 Brajendra Kumar. This is an open access article distributed under the Creative Commons Attribution License.
