Comprehens ive Control Technology research on floor heave in gas tail gateway which has wide coal pillar
LIU Lei
WANG Shi-chang
Abstract：For the serious problem of floor heave in the gas tail gateway which has wide coal pillar in the 3303 face of Hexi coal mine , this paper carefully analysed the effects of floor heave , defined the comprehensive con-trol technology of deep hole loose blasting ,floor reinforcement ,floor water control.It designed the relieving pa-rameters of deep hole loose blasting , reinforced the floor using bottom beams and single hydraulic prop sup -porting forms .With the analysis of the observation data of the road way surface displacement deformation ,the comprehensive treatment plan has achieved good results and basically solved the problem of floor heave in gas tail gateway.
Keywords：gas tail gatewayfloor heave in gatewaydeep hole loose blastingfloor reinforcement
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 24-27 )