Analysis on stress characteristics of floor in thick seam working face at initial stage of fully mechanized top coal caving mining

• Published in: IOP conference series. Earth and environmental science Vol. 621; no. 1; pp. 12029 - 12035
• Main Authors: Guo, Liquan, Ou, Yuanchao, Liu, Chang
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.01.2021
• Subjects: Coal; Coal mines; Coal mining; Compression; Compressive properties; Fiber optics; Floors; Limestone; Lithology; Mining; Monitoring; Mudstone; Rock masses; Rocks; Sandstone; Strain; Strain distribution; Stress; Stress concentration; Stress distribution; Work face

Coal seam working face mining will cause the redistribution of the stress field in the mining floor, which results in the deformation and damage of the coal and rock mass. The stress on the open-off cut floor of the working face at the initial stage of fully mechanized top coal mining of coal seam i...