The Research Of Security Support Thchnology Of Coal Roadway Weith Large Section In Thick Coal Seam

The No.5204face in Wujiagou coal mine which have the characteristics of big cross section,thick coal seam and complex structure of roadway roof. There are many times of the partial topfalling accident in the actual production, caused some economic loss, and become a importanthidden trouble in influencing production safety. The main reason is the design of roadwaysupport with blindness, can not distinguish where with the high risk of roof falling, leading localsupport strength insufficient.For the above, the research object in this paper is the main crossheading and auxiliarycrossheading in No.5204face of Wujiagou coal mine, using rock hole detecting instrument andloose cycle instrument to understand the characteristics of roof strata, to make sure how big theLoose circle in two sides roadway, provide theoretical basis and fundamental data in safetysupport. Theoretical analysis the local roof caving in roadway, Putting support parametersoptimization scheme. Comparing support effect in different Support pattern through numericalsimulation software, make sure the new support scheme. At the same time, using intelligent deepbasic point displacement to dynamic monitoring and inspection effect the anchor bolting effectsbasis on microelectronics.