基于极光优化算法的沿空掘巷煤柱宽度优化及应用

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中图分类号：TD353 文献标志码：A

Abstract：To address the complexity and time-consuming nature of current optimization studies on coal pillarwidthforgob-sideroadwaydriving，thePolarLightsOptimizer（PLO）algorithmisintroduced to automaticallyoptimizethecoalpilar width.Thestudy employedtheoreticalanalysis，intellgent optimization，and fieldtests toinvestigatethedepthof lateralbreakageof thebasicroof intothecoal seamalong thegob-side roadway，determined the stress field distributionrangewithingob-sideroadwayand identifiedthereasonable layout area for the roadway.Based on roadway layout principles and limit equilibrium theory，therange of coal pillarwidths to beretained wasdetermined to be1.5 to 7.0m .Acoal pillarwidth optimization method based on thePLOalgorithm was proposed，establishing a fitness functionusing surrounding rock deformation ofthe gobsideroadway as the evaluation index.After iterative optimization，the optimal coal pilar width was determined to be 7.0m .Based on the optimal coal pillar width，acombined support scheme of anchor rods and cable nets for the gob-side roadway was designed. Field practice results showed that the 7.0m coal pillar and integrated control technology effectively controlled thesuroundingrock deformationof thegob-side roadway during excavation and mining，maintained theoverallstabilityof theroadway，improvedcoalresourcerecovery，andmaximized economic benefits.

Key words： gob-side roadway；surrounding rock deformation control;；coal pillar width；Polar Lights Optimizeralgorithm;stress field distribution;basic roof fracture position

0引言

沿空掘巷是沿相邻工作面采空区边缘留设小煤柱掘进本工作面回采巷道的开采方式[1-2]。（剩余12048字）