Verman, M and Jethwa, J.L (1997) Estimation of Mobilised Cohesion Around Underground Openings. International Journal of Rock Mechanics and Mining Sciences , 34 (5). pp. 851-858. ISSN 1365-1609

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Abstract

Based on the field data obtained from 12 Indian and several NGI case histories, a semi-empirical relation has been proposed in this paper for & termination of “mobilised” cohesion around underground openings. It has been found that mobilisation of cohesion takes place at higher values around underground openings than the values previously suggested and the values obtained from block shear tests. A strength enhancement factor has been suggested which is to be multiplied with the cohesion parameter obtained from block shear tests for practical application. This apparent strength enhancement may be attributed to anisotropy in strength, statistical variation in strength and confining conditions around tunnels.

Item Type:	Article
Subjects:	Blasting
Divisions:	UNSPECIFIED
Depositing User:	Dr. Satyendra Kumar Singh
Date Deposited:	15 Jan 2012 05:13
Last Modified:	15 Jan 2012 05:13
URI:	http://cimfr.csircentral.net/id/eprint/669

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