Open AccessResults of acceptance tests of improving coal bed degassing by hydrodynamic stimulation in the lower area of pick hammer longwal
Author(s) -
В. И. Гаврилов
Publication year - 2015
Publication title -
vestnik permskogo nacionalʹnogo issledovatelʹskogo politehničeskogo universiteta. geologiâ, neftegazovoe i gornoe delo
Language(s) - English
Resource type - Journals
eISSN - 2305-1140
pISSN - 2224-9923
DOI - 10.15593/224-9923/2015.14.6
Subject(s) - hammer , coal , petroleum engineering , geotechnical engineering , geology , materials science , mining engineering , engineering , waste management , metallurgy