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Paper Information

Journal:   INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN)   FALL 2006 , Volume 17 , Number 3; Page(s) 101 To 109.
 
Paper: 

STUDY OF THE ROOF BEHAVIOR AND THE INTERACTION BETWEEN TWO WORKING AREAS IN ONE PANEL IN PLO COAL SEAM AT TAZAREH COLLIERY

 
 
Author(s):  TORABI S.R., SARLAK MOJTABA
 
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Abstract: 

Owing to the nature of the coal reserves in Iranian collieries, and consequently impossibility of employing mechanized mining system in most of these districts, the mining activity at such areas is of the type of labour intensive.
In order to accommodate more miners to achieve acceptable productivity, establishment of more than one stope in one panel is practiced in some coal mines such as Tazareh in Shahrood.
Roof behavior at this colliery was studied using two methods namely: empirical method and numerical method. Empirical method showed the semistable category for the roof rock and numerical approach using FLAC software showed that in the case of presence of two working areas in one panel the interaction will start at distances about 10 meters between the stopes. Also it was shown that in the case of simultaneous activity of the stopes in one direction, in other words both retreat or both advance, the interaction is less tangible than the case where they are in the opposite directions. The results yet to be validated by other means can be used to allow a minimum width of 10 meters between the stopes as pillars, provided that it is confirmed by anlytical assessment of strata weighting on the pillar in each case depending on the roof geometry.

 
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