Paul, Avinash and Singh, Ajoy Kumar and Kumar, Niraj and Rao, D.G. and Sinha, A. (2006) Instrumentation as first line of defense for prediction of rock movement in power house drift - a case study. Mining Engineers Journal, 7 (12). pp. 12-19.

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Abstract

Today instrumentation is a basic need for prediction of rock strata behaviour. There are many instruments, which are being used for ground control measures and monitoring of strata movement. The most important factor during excavation is to control the movement of strata and stress developed. Problems regarding strata movement are prominent in underground coal mines and tunnels as the overlying rock above the immediate roof most of the times are composed of weak sedimentations. After excavation process these weak overlying rocks get associated with strata movement if proper support system has not been provided. In underground mines and tunnels roof fall is the major reason of casualties. By instrumentation it gets much easier to monitor the rock movement, which enables management to enhance their support system. Continuous monitoring of strata helps to envisage the excessive rock movement and stress which may create big problem during excavation. Hence an attempt has been made in this paper to throw some light on continuous monitoring of rock using Borehole extensometer and tape extensometer in power house drift of NHPC (Subansiri project, Assam) to study the movement of strata

Item Type:	Article
Subjects:	Geo-Mechanics and Mine Design
Divisions:	UNSPECIFIED
Depositing User:	Dr. Satyendra Kumar Singh
Date Deposited:	09 Dec 2011 12:18
Last Modified:	09 Dec 2011 12:18
URI:	http://cimfr.csircentral.net/id/eprint/301

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