• K. M Mulay
• B. K. Khade
• R. P. Masade
• A. B. Vaidya

Blasting is very important process for mining operation and a lot of explosive is used for this purpose. Blasting activities in the mines certainly affects the equilibrium of surroundings. Various studies indicate that fragmentation accounts for only 20-30% of the total amount of explosive energy used. Rest of the energy is lost in the form of ground vibration, fly rock, air overpressure and noise. It becomes more important than even before to study more critically environmental impacts of blasting on surroundings consisting of various structures of importance and forest of national interest located in an around the mine site. Environmental Impact Assessment emphasizes monitoring of blast seismic vibrations. In this paper the authors have made effort to highlight the requirement of monitoring of blast induced ground vibrations for estimating safe maximum charge per delay under controlled blasting and limiting the peak particle velocity values under the existing compliance. Blast induced ground vibration was monitored with one seismograph. In all blast ground vibrations were monitored at different monitoring stations in the direction of nearby surface structures and village. The results determined from the study indicates that the peak particle velocity due to blasting were within the limits. The safe charge per delay for the blasting operation was determined from the study.

Blast, Environmental impact, Ground vibrations, Maximum charge per delay, Peak particle velocity.

"Monitoring of Ground Vibrations for Estimation of Safe charge at Marki Mangli Coal Mine No. 1 District Yavatmal. (Maharashtra)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 1, page no.181-188, January-2021, Available :http://www.jetir.org/papers/JETIREK06043.pdf

"Monitoring of Ground Vibrations for Estimation of Safe charge at Marki Mangli Coal Mine No. 1 District Yavatmal. (Maharashtra)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 1, page no. pp181-188, January-2021, Available at : http://www.jetir.org/papers/JETIREK06043.pdf