红阳三井井筒冻结段控制爆破研究与应用

^Study and Application of Control Blasting in Shaft Freezing Section of Hongyang No. 3 Shaft

介绍了红阳三井风井井筒冻结段采用全断面爆破法施工的技术经验，既保证了安全施工，又加快了掘进速度。

This paper introduces the technical experiences adopting full-face blastingmethod in shtqft freezing section of Hongyang No. 3 shaft.Both Safe construction and fast ex-cavation rate were realizad.