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Coal Engineering ›› 2024, Vol. 56 ›› Issue (5): 51-57.doi: 10.11799/ce202405008

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Study on the measurement and optimization of the integrated construction technology in Caojiatan coal mine#br#

  

  • Received:2022-09-25 Revised:2024-03-21 Online:2023-05-20 Published:2025-01-03

Abstract:

In view of this situation that applying intelligent fast anchor complete equipment for large section of coal roadway in Caojiatan coal mine, facing equipment and tunneling process mismatch, unable to achieve completely parallel operation, based on the existing technical equipment and the field measurement and statistical analysis, the goal of improving the parallel operation rate of anchor excavation integration is realized. Carried out the field research, measured, theoretical analysis and numerical simulation, in the detailed measured tunneling face process flow, staffing, the process time for quantitative and theoretical research, for cutting, temporary support, permanent support, maintenance, various optimization and daily management. Combined with theoretical analysis and using numerical simulation studied the anchor density, length on the influence of roadway surrounding rock deformation law, on the premise of ensuring safety, put forward the anchor reduction and extension support scheme, namely on the premise of ensuring the original support strength, by increasing the bolt length and increase the bolt spacing to shorten the support time, improve the support efficiency, realize the parallel digging anchor synchronous operation. The research results provide some reference significance for the application of rapid tunneling construction in other coal mines.

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