Cavability control by hydraulic fracturing for top coal caving in hard thick coal seams
Volume: 74, Pages: 45 - 57
Published: Feb 1, 2015
Abstract
Insufficient breaking and falling of top coal is a technical problem in hard thick or super-thick coal seams during top coal mining. Based on top coal weakening by hydraulic fracturing and main roof hydraulic fracturing to induce coal crushing, a method of improving the top coal cavability by top coal and roof hydraulic fracturing is proposed. More specifically, linear multi-hole hydraulic fracturing and deep-hole retreating hydraulic fracturing...
Paper Details
Title
Cavability control by hydraulic fracturing for top coal caving in hard thick coal seams
Published Date
Feb 1, 2015
Volume
74
Pages
45 - 57
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