Expansion-installation integration process of working face under complex geologic conditions
The geologic conditions of the 93lower10 working face's cutting hole is complex,leading to strata behavior and dif-ficult roof control.The normal mining of the mine is seriously affected due to the difficult support with traditional cutting hole expansion mode and the long period of construction.After the comparison of traditional construction process and analysis of the process and investment,the expansion-installation integrated technology of expanding cutting hole while installing sup-port is proposed and applied.The results shows that the technology reduces the difficulty of support and lightens the working strength of miners,solving the issues of difficult roof support and long preparatory period of equipment on the working face,ensuring the rapid and efficient installation,and mitigating the intensity of the mine's production connection.