Distribution of vertical stresses in the roof of #3 up coal seams. (a)
Por um escritor misterioso
Descrição
Effect of the roof cutting technique on the overlying geotechnical structure in coal mining
SciELO - Brasil - Investigation of the Roof Presplitting and Rock Mass Filling Approach on Controlling Large Deformations and Coal Bumps in Deep High-Stress Roadways Investigation of the Roof Presplitting and Rock
Complex function solution for deformation and failure mechanism of inclined coal seam roadway
Distribution Law of Mining Stress of the Gob-Side Entry Retaining in Deep Mining Thin Coal Seam
Frontiers Near crushing mechanism of gangue-containing coal seams and parameter optimization for combined fully mechanized caving
Full article: Roof-breaking mechanism and stress-evolution characteristics in partial backfill mining of steeply inclined seams
Sustainability, Free Full-Text
Sustainability, Free Full-Text
Effects of in-situ stress on the stability of a roadway excavated through a coal seam - ScienceDirect
Vertical stress distribution along the inclined direction in the mining
Vertical stress and stability of interburden over an abandoned pillar working before upward mining: a case study
Sustainability, Free Full-Text
FLAC3D numerical model. (a) Overall view and (b) section coal pillar.
Simulation of recovery of upper remnant coal pillar while mining the ultra-close lower panel using longwall top coal caving - ScienceDirect
de
por adulto (o preço varia de acordo com o tamanho do grupo)