Vibration and Noise Studies
Bringing Expertise & Precision to Exploration, Estimation & Excavation
Mines and Excavations near public spaces have to conduct blasting cautiously. The MMR 1961 (Metalliferous Mines Regulations), Regulation number 164- 1(b) reads, ‘Unless sufficient warning, by efficient signals or other means approved by the manager, is given over the entire area falling within a radius of 300 metres from the place of firing (hereinafter referred to as the danger zone) and also he has ensured that all persons within such.’
Regulation 164 (1-B) (a) states, ‘In the case of an opencast working, where any permanent building or structure of permanent nature, not belonging to the owner, lies within the danger zone, the aggregate maximum charge in all the holes fired at one time shall not exceed two kilograms unless permitted in writing by the Chief Inspector or the Regional Inspector and subject to such conditions as he may specify therein: Provided that if blasting is done with delay detonators or other means and that there is a delay of at least half a second between successive shots fired, a maximum charge of two kilograms can be used in each hole; Provided further that if the shortest distance from the place of firing to any part of such building or structure is less than 50 metres irrespective of the amount of the charge, no blasting shall be done except with the permission in writing of the Chief Inspector or the Regional Inspector and subject to such conditions as he may specify.’
Uttam Blastech helps you with scientific studies based on which you can obtain permission to blast in danger zone.