The　one-time　completion　blasting　technology　for　blind　shafts　is　widely　used　in　underground　mining,　for　safety　reasons.　Efficient　blind　shaft　excavation　relies　on　reasonable　cutting　blasting　technology.　To　optimize　blasting　parameters,　the　impact　of　explosion　stress　waves　and　gases　on　rock　fragmentation　is　quantitatively　analyzed　using　explosion　stress　wave　theory.　A　calculation　model　for　the　radius　R1　of　the　crushed　zone　and　the　radius　R2　of　the　fractured　zone　in　rock　under　the　combined　action　of　borehole　cutting　stress　waves　and　blasting　gases　is　derived　and　established.　Combined　with　practical　engineering　examples　and　the　determination　method　of　compensation　coefficient　Cf,　three　types　of　linear　cutting　patterns,　namely　six-hole　bucket　cutting,　seven-hole　bucket　cutting,　and　nine-hole　bucket　cutting,　are　designed.　The　post-blasting　cavity　volume　and　crack　length　of　these　three　different　cutting　methods　are　calculated　and　analyzed　using　numerical　simulation.　Quantitative　description　of　the　distribution　pattern　of　blasting-induced　cracks　in　the　simulation　results　of　three　cutting　methods　using　the　box-counting　fractal　dimension　method　are　presented.　Based　on　this　analysis,　the　nine-hole　bucket　cutting　is　selected　as　the　optimal　scheme　and　validated　through　field　application　of　cutting　blasting.　The　results　indicate　that　the　nine-hole　bucket　cutting　blasting　scheme　for　one-time　completion　of　blind　shafts,　with　a　designed　hole　depth　of　8　m　and　a　blasthole　utilization　rate　of　93.7%,　is　an　efficient　and　reasonable　technical　solution.