Mandal, S.K and Singh, M.M. (2005) Deflection of walls as the cause of structural damage - a conceptual model. Journal of Mines, Metals & Fuels, 53 (3&4). pp. 55-61. ISSN 0022-2755

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Abstract

Ground vibration and air overpressure are the natural environmental hazards of blasting. Due to increased sprawl of dwellings around the mine workings and the need of cost-effective excavation operation, a need of managing risk associated with blasting operation is increasing in day-to day mining activities. Structures might be damaged due to various reasons, even not related to blasting. But the poor blasting knowledge and fear psychosis towards the noise heard during blasting, brings an erratic level of judgment of human perception towards the risk of structures getting damaged. The erratic judgment of the dwellers even at times invites confrontation between dwellers and mine management and in the worst case might cause closure of mines. The authors feel that damage of structures depends upon structure quality, thickness of walls and soil/rock structure response towards vibration. Therefore, prior to estimation of safe magnitude of vibration for structural safety, structures should be analyzed through structural response and mathematical concepts of structural dynamics with respect to blasting. The paper, with the help of conceptual structural dynamic model, attempts to put forward the requirement of structural analysis for estimation of safety of structures. The paper also communicates the methodology to be adopted for construction of new buildings around the mining area.

Item Type:	Article
Subjects:	Blasting
Divisions:	UNSPECIFIED
Depositing User:	Dr. Satyendra Kumar Singh
Date Deposited:	10 Dec 2011 09:56
Last Modified:	10 Dec 2011 09:56
URI:	http://cimfr.csircentral.net/id/eprint/307

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