Das, Arka Jyoti and Mandal, Prabhat Kumar (2018) Strategies for underground Extraction of the inclined coal seams by continuous miner. Mining, Geological and Metallurgical Institute , 114. pp. 2-12.

PDF Restricted to Registered users only Download (12Mb) | Request a copy

Abstract

Large-scale machanisation in underground coal mining becomes necessary to meet the gap between the demand and the supply of coal in India by improving the production and productivity. The macanisation becomes difficult when the inclination of the coal seam is high as it involves a number of geotechnical and operational issue. In India, there are huge reserves of the coal where the seams are inclined. Unless, these coal seams are extracted applying proper methodologies, the working would be jeopardized due to the severe geotechnical problems. Therefore, it is important to understand the behavior of the rock mass during the working in the inclined coal seam. In this study, the field investigation and the numerical modeling are carried out to assess the stability of the workings of the inclined coal seams. The effect of the inclination on the stability of surrounding rock masses is evaluated by parametric study through numerical modeling. The variation of the inclined pillar strength, the stress regime and the failure zone are presented in this study. The case study of the shantikhani Mine of singereni Collieries Company Limited are presented where the workingsare carried out in the inclined coal seams.

Item Type:	Article
Uncontrolled Keywords:	Inclined coal seam, apparent dip, ubiquitous joint, rhombus shaped pillar , yield zone
Subjects:	Thick Seam Mining
Divisions:	UNSPECIFIED
Depositing User:	Mr. B. R. Panduranga
Date Deposited:	23 Jul 2018 04:43
Last Modified:	23 Jul 2018 04:43
URI:	http://cimfr.csircentral.net/id/eprint/1905

Actions (login required)

View Item