Pal Roy, P. and Sawmliana, C. (2014) Environmental Impacts of Metals Cladding Operations and Remedial Measures: A Case Study. Journal of The Institution of Engineers (India): Series D Metallurgical & Materials and Mining Engineering, 95 (1). pp. 65-73. ISSN 2250-2122

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Abstract

In metal cladding operations, a mixture of 11 % TNT flakes, 44 % ammonium nitrate (non-explosive) and 45 % dehydrated salt (non-explosive) are mixed uniformly to produce an explosive mixture with velocity of detonation 1,800–2,000 m/s. To study the environmental impacts of such operations which led to serious complaints from neighbouring villagers and even closure of some units, a study was carried out to investigate the levels of ground vibration, air overpressure and noise generated by blasting operations of different explosive charge quantities during the metal cladding operations and their impacts on the surrounding villages. Following the safety norms of Central Pollution Control Board (CPCB, Model Rules of the Factories Act on Noise Pollution Control) [1] and Directorate General of Mines Safety (DGMS, Damage to the structures due to blast induced ground vibration in the mining areas) [2] of India, generalised guidelines for such safe operations were framed. This paper describes the operational aspects of metal cladding, experimental results and scientific analyses of data to propose certain guidelines for safe metal cladding operations.

Item Type:	Article
Uncontrolled Keywords:	Metal cladding � Bonding pit �Ground vibration � Air overpressure � Noise � CPCB �DGMS � TNT flakes � ANFO
Subjects:	Blasting
Divisions:	UNSPECIFIED
Depositing User:	Mr. B. R. Panduranga
Date Deposited:	30 Aug 2016 12:00
Last Modified:	31 Aug 2016 11:12
URI:	http://cimfr.csircentral.net/id/eprint/1613

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