双楔形掏槽技术在大断面斜井中的应用

Application of Double Wedge Cut Technology in Large-section Inclined Shaft

随着现代煤矿的发展,大断面斜井的出现,最初的直眼掏槽及单楔形掏槽方式已不能满足现场爆破要求及作业需求,本文阐述了双楔形掏槽技术在大断面斜井中应用、施工要点及成效。

With the development of modern coal mine and the occurrence of large-section inclined shaft,the original cylinder and single wedge cut methods cannot meet the requirements of field blasting and operation.The paper expounds the application of the double wedge cut technique in the large section inclined shaft,including its construction key points and results.