Technology of TBM drill-bolting system in Sangshuping Coal Mine

CHEN Wuxuan; ZHANG Shaoyi; GUO Yifeng

doi:10.11799/ce202504008

Abstract：To address the low supporting efficiency and complex process caused by the broken roof severe rib spalling in Sangshuping Coal Mine,we analyzed the overall spatial layout of TBM rapid tunneling system,and proposed the evaluation method of drilling and anchor equipment layout based on spatial overlap coefficient.An optimization model was constructed for spatial layout of TBM drilling and anchor system based on support requirements,drilling and anchor equipment layout and operation scope constraints,and the optimal layout scheme of the drill-bolting system was obtained.Combining with the requirements of the drill-bolting support process,the RRT-Star trajectory planning method based on dynamic varying step size was studied,realizing the fast track planning based on task driving.For the optimization of multi-objective and multi-process,with the aim of taking the shortest time,the optimization model of drilling and anchor process was established,the optimal drilling and anchor process arrangement matrix was solved;Based on the optimal process arrangement matrix,the actual working process of the drilling and anchor system was simulated.According to the verification of practical engineering application effect,the optimized spatial layout,trajectory planning method and drill-bolting process of TBM drilling and bolting system can significantly improve the operation efficiency of TBM rapid tunneling system.