Research on key technologies and equipment for speedy drivage of coal roadways in the Cuncota NO.2 Coal Mine
It is necessary to conduct in-depth research on speedy drivage of coal roadways in mining areas in order to solve the problems of efficient coal mining and tight replacement of working faces.In response to the engineering geological conditions of the Cuncaota'er Mine area of Guoneng Shendong Coal Group Co.,Ltd.,the reasons that affect the speedy drivage of coal roadways are analyzed in three aspects:tunnel excavation equipment selection,tunnel support technology,and construction labor organization.Based upon the engineering analogy method,tunnel support parameter design,and operation technology,the equipment selection of the drivage system is carried out,at the same time,the structure and functional design of the advanced drilling,cutting system,temporary protection,airborne support system,material transportation system,walking system,and working face dust removal system of the drivage system are carried out.The underground industrial test is carried out by using the 31111 tunnel of Cuncaota NO.2 Coal Mine as a demonstration tunnel,the effectiveness and practicality of the research are verified and a new solution for speedy drivage of coal roadways in western China is provided.
Shendong mining areaspeedy drivage of coal roadwaysequipment systemproduction process
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