Mechanical Law and Control Technology of Surrounding Rock in Yangjiashan Mining Area
The Yangjiashan mining area mainly mines the No.3 coal seam,and the entire area is influenced by the Yangjiashan syncline structure,resulting in complex rock strata occurrence conditions.Based on the surrounding rock conditions of different mining levels in five mines in Yangjiashan mining area,the surrounding rock conditions of the mine roadways were analyzed,and the failure mechanism of the surrounding rock in the mining area was summarized.In response to the shortcomings of the existing support methods,grouting reinforcement,long and short anchor cable reinforcement,and flexible protection surface were adopted to optimize the roadway support,providing theoretical support for the normal use and daily maintenance of the rock roadways.
Yangjiashan mining areasurrounding rock failuresurrounding rock mechanicssupport for shafts and roadways
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