[PDF][PDF] Ground surface subsidence as effect of underground mining of the thick coal seams in the Jiu Valley Basin
I Onica, D Marian - Archives of Mining Sciences, 2012 - bibliotekanauki.pl
In the case of the thick and gentle coal seam no. 3 of the Jiu Valley Coal Basin (Romania),
the mining methods are by use of the longwall mining technologies with roof control by …
the mining methods are by use of the longwall mining technologies with roof control by …
[PDF][PDF] 2D AND 3D FINITE ELEMENT MODELLING OF THE JIU VALLEY SUBSIDENCE PHENOMENON.
M Dacian, O Ilie, C Eugen - Annals of the University of Petrosani Mining …, 2012 - upet.ro
In this paper, it is presented the analysis of the complex deformations of the ground surface,
over time, as a consequence of the coal longwall mining in certain mining fields of the Jiu …
over time, as a consequence of the coal longwall mining in certain mining fields of the Jiu …
[PDF][PDF] ILIE ONICA*, DACIAN MARIAN
WKZWD JIU - academia.edu
In the case of the thick and gentle coal seam no. 3 of the Jiu Valley Coal Basin (Romania),
the mining methods are by use of the longwall mining technologies with roof control by …
the mining methods are by use of the longwall mining technologies with roof control by …
TIERED POWERED SUPPORTS IN LONGWALL FACES-NEW TRENDS IN THE THICK COAL SEAMS MINING.
I ONICA, C HANNA - Annals of the University of Petrosani …, 2017 - search.ebscohost.com
In this paper, a new concept concerning the powered supports used in longwall mining
faces is presented, named" tiered powered supports", proposed for over 5-6m mining …
faces is presented, named" tiered powered supports", proposed for over 5-6m mining …
GROUND SURFACE DEFORMATION USING THE FINITE ELEMENT METHOD, IN CONDITIONS OF THE LONGWALL MINING OF THE COAL LAYER NO. 3 …
I Onica, E Cozma, DP Marian - Mining Revue/Revista …, 2011 - search.ebscohost.com
Abstract The Livezeni Mine is situated in eastern part of the Jiu Valley coal basin (Romania)
and produces about 0.5 million tons of hard coal (presently, in totality from coal layers no. 3) …
and produces about 0.5 million tons of hard coal (presently, in totality from coal layers no. 3) …