To address the issues of low excavation efficiency,large amount of support engineering,and mismatch between excavation and support in coal mines under complex geological conditions,research is conducted on coal mine excavation and support technology under complex geological conditions.Based on the engineering application background of coal mine extension roadway excavation,the technology and equipment to improve the progress of coal mine roadway excavation and support were studied.The use of fast excavation equipment has improved the excavation progress of tunnels under complex geological conditions,and the support of tunnels has been accelerated through the anchor rod drilling machine carried by the intelligent anchor machine,achieving fast excavation.This study provides a solution for solving the problem of slow excavation speed and mismatched excavation support under complex geological conditions.
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