THERMAL SCIENCE

International Scientific Journal

Qigen Deng

,

Fajun Zhao

,

Hong Li

,

Jingping Yin

,

Tao Zhang

,

Junjie Wei

TECHNOLOGY AND PRACTICE OF THE ROOF-CAVING OF HYDRAULIC FRACTURING IN A FULLY MECHANIZED CAVING FACE

ABSTRACT
A fracture expansion criterion of hydraulic fracturing was suggested to deal with the hard and stable roof control in coal mines. An experiment was designed for the roof control, and the reliability of model was verified. Four different types of fracturing holes and fracturing technology were designed in the setup room, and the hydraulic fracturing in the roof of a fully mechanized caving face was implemented.
KEYWORDS
hard and stable roof, hydraulic fracturing, fracturing model, borehole, underground test
PAPER SUBMITTED: 2019-11-04
PAPER REVISED: 2020-05-20
PAPER ACCEPTED: 2020-05-20
PUBLISHED ONLINE: 2021-03-27
DOI REFERENCE: https://doi.org/10.2298/TSCI191104096D
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE Issue 3, PAGES [2117 - 2126]
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PDF VERSION [DOWNLOAD]
Technology and practice of the roof-caving of hydraulic fracturing in a fully mechanized caving face

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence