id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_octvu4mkpjhtllfs2zldy6z5o4	Junhua Xue	Experimental research on overlying strata movement and fracture evolution in pillarless stress-relief mining	2015.0	8	.pdf	application/pdf	4972	405	67	the movement and fracture evolution of the overlying and underlying strata after the protective seam in extracted. physically simulate the movement and fracture evolution of the overlying strata after the No. 11-2 seam is extracted. was 4 times of the seam mining height and the internal strata of the caving zone collapsed irregularly. fracture zone was about 65� upward from the seam open-off cut toward the goaf, the height of longitudinal joint growth The spatial and temporal evolution regularities of overburden's displacement field and stress field, dynamic development process and distribution of fracture field were analyzed. Keywords Low-permeability coal seam � Pillarless stress-relief mining � Overburden movement � Fracture evolution � modeling test has been undertaken to simulate the goafside roadway retaining process in mining the first panel Experimental research on overlying strata movement and fracture evolution in pillarless stress-relief mining Experimental research on overlying strata movement and fracture evolution in pillarless stress-relief mining	./cache/work_octvu4mkpjhtllfs2zldy6z5o4.pdf	./txt/work_octvu4mkpjhtllfs2zldy6z5o4.txt