Gas Comprehensive Control Technology Based on Gob -Side Entry Retaining
Abstract：In order to effectively control the gas concentration in working face and upper comer and to prevent the occurrence of gas ac- cidents, combining with the practical situation of low air permeability coal seam of Shanxi Qinxin coal mine, on the basis of analyzing the air flow field characteristics of ＂U＂ model and ＂Y＂ model ventilation in gob, comprehensive measures of gas control based on gob -side entry retaining of the combination of ＂Y＂ model ventilation, buried tubes extracting in gob and high level berehole extracting in pressure released area are proposed. The field monitoring results show that the The technology can effectively control the gas concentra- tion in working face and upper comer.
Keywords：gob - side entry retaininglow permeabilitygas'Y' model ventilationdrainage in pressure releasing areaburied tube in gobhigh level borehole
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 60-62 )