Study on mine pressure behave laws of deep tilting fully mechanized caving face in Zhaogezhuang Mine
LIU Zhanchun
Abstract： Based on the observation results of mine pressure of fully mechanized caving face 3237 in Zhaogezhuang Mine, the mine pressure behave laws of deep tilting fully mechanized caving face and regularity of overlying rock shift were discussed .The results indicated that:①the workface weighting was not obvious because the work first weighting step distance was 16~18m with the increasing load modulus 1.47~2.33, and the periodic weighting length of workface was 11~13m with the increasing load modulus 1.15~1.36;②working resistance of anterior column support was about twice as much the posterior column generally ;③ the movement of roof coal and immediate roof and main roof is in front of the coal wall , and different degree movement in hori-zontal and vertical direction have happened in the roof coal and roof in front of the coal wall .
Keywords：large anglesmine pressure behavefully mechanized caving faceregularity of rock shift
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 37-40 )