GEOMECHANICAL AND WEATHERING PROPERTIES OF WEAK ROOF SHALES I N COAL MINES

منو

" GEOMECHANICAL AND WEATHERING PROPERTIES OF WEAK ROOF SHALES I N COAL MINES "

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	149622
Doc. No	:	ET21414
Main Entry	:	Hakan Gurgenli
Title Proper	:	GEOMECHANICAL AND WEATHERING PROPERTIES OF WEAK ROOF SHALES I N COAL MINES
Note	:	This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract	:	Many coal seams have weak shale immediate roofs that cause ground controlproblems. Therefore, it is important to know the mechanical properties of theseshales so that preventive measures can be developed in advance. However, it issometimes hard to understand this rock type due to its unpredictable behavior. Agood example of this situation is found with the shale roof strata in two coal mineslocated in the Illinois coal basin - Herrin No. 6 seam. Although these mines arelocated very close to each other, one of them has many roof falls, whereas the otherhas no measurable ground control problems.The aim of this thesis is to explain why and how one shale roof behavesworse than the other. Laboratory tests, including point load strength index, slakedurability index, moisture activity index, weatherability index, water (moisture).
Subject	:	Electericl tess
	:	برق
electronic file name	:	TL44573.pdf
Title and statement of responsibility and	:	GEOMECHANICAL AND WEATHERING PROPERTIES OF WEAK ROOF SHALES I N COAL MINES [Thesis]