This paper presents a presplitting test in medium-hard fissured redsandstone during cut excavation of Xianglei high-speed highway in Hunan Province.

• 介绍了湖南省湘耒高速公路边坡开挖爆破施工时,在中等坚硬且裂隙发育红砂岩地区实施预裂爆破的试验情况。