DOI: 10.11799/ce201704010
Mine pressure behavior and roof control of gob-side entry retainingformed by roof cutting and pressure relief in fully-mechanized face
WEI Guang-rong
WANG Qing-xiong
Abstract：Based on production practice of 12201 working face in Halagou Coal Mine Shendong mine area,mine pressure behavior and roof control measures were analyzed for gob-side entry retaining formed by roof cutting and pressure relief face.The results show that during the first mining,when the advancing distance is 100m,the roadway is basically stable and the support can be retreated.The surrounding roadway rock of 12201 is controlled effectively by increasing support strength,protecting roof anchor integrity and reinforcing glass bolt support.During the second mining,the influence range of lead pressure in left lane in within 25m and the peak position is about 10m.The support scheme of retained roadway is reasonable,using DW28-400/110 and DW25-400/110 type single support,with 30m of advance support distance,0.6m of single row spacing,and 6 supports for each row.
Keywords：gob-side entry retaining formed by roof cutting and pressure reliefconstruction proceduremine pressure behaviorroof control
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 28-31,35 )