Distribution of vertical stresses in the roof of #3 up coal seams. (a)
Por um escritor misterioso
Descrição
Sustainability, Free Full-Text
Validation of critical strain technique for assessing stability of coal mine intersections and its potential for development of roof control plans - ScienceDirect
Layouts of the 2-2 upper and 2-2 middle coal seams.
Non-uniform failure and differential pressure relief technology of roadway under irregular goafs in deep close-distance coal seams
Sustainability, Free Full-Text
Experimental investigation on stress distribution and migration of the overburden during the mining process in deep coal seam mining, Geoenvironmental Disasters
Strata behaviour and stability control of the automatic roadway formation by roof cutting below a fault influenced longwall goaf
Determination of fracture location of double-sided directional fracturing pressure relief for hard roof of large upper goaf-side coal pillars - Jiangwei Liu, Changyou Liu, Xuehua Li, 2020
Ground control in mining steeply dipping coal seams by backfilling with waste rock
Influence of stress distribution in coal seams of non-uniform extremely thick key stratum and disaster-causing mechanisms
Stability and Control of Retracement Channels in Thin Seam Working Faces with Soft Roof
Evolution of the Overlying-Strata-Bearing Structure and the Permeability Distribution of the Broken Interlayer in Shallow Multiseam Mining, International Journal of Geomechanics
de
por adulto (o preço varia de acordo com o tamanho do grupo)
