Open AccessTechnology of coupled permeability enhancement of hydraulic punching and deep-hole pre-splitting blasting in a "three-soft" coal seam
Author(s) -
Peng Li,
X. Zhang,
Hua Li
Publication year - 2021
Publication title -
materiali in tehnologije
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.27
H-Index - 25
eISSN - 1580-3414
pISSN - 1580-2949
DOI - 10.17222/mit.2020.075
Subject(s) - punching , coal mining , coal , rock blasting , deep hole , permeability (electromagnetism) , cracking , geotechnical engineering , penetration (warfare) , materials science , explosive material , petroleum engineering , geology , engineering , metallurgy , composite material , mechanical engineering , waste management , chemistry , organic chemistry , operations research , membrane , biology , genetics
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