Raina, A.K. and Chakraborty, A.K. and Ramulu, M. and Sinha, A. (2009) Perimeter Blasting with Significant Savings - an Example of a Hydroelectric Project. Journal of the Institution of Engineers (India), 90. pp. 15-21. ISSN 0257-442X

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Rock blasting is an integral part of hydroelectric projects. Contour of perimeter blasting (seno stricto), although in vogue for quite some time has received scant attention from civil engineers and engineering geologists, particularly in India. This paper brings one such example in India where application of perimeter blasting yielded significant savings to the implementing agency. A comprehensive blasting strategy evolved at priyadarshini Jurala Hydroelectric Project in Andhra Pradesh with detailed geological and geotechnical assessment and the trial blast evaluation pus definitive measures for execution yielded excellent results. This included excavating the vents, tail race pool and tail race channel in a rock ledges and reconstruct the ledges with concrete, which would have meant further cost on this head. The retention of rock ledges coud thus save Rs 110 million to the project. The aim of this paper is to familiarise the geologists and civil engineers about the usefulness of the perimeter blasting.

Item Type: Article
Subjects: Blasting
Depositing User: Dr. Satyendra Kumar Singh
Date Deposited: 30 Dec 2011 04:29
Last Modified: 30 Dec 2011 04:29
URI: http://cimfr.csircentral.net/id/eprint/543

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