基岩保护层一次性爆破开挖技术分析研究  

The Study of Excavation Technology of Protective Coverage for Foundation Rock

作　　者：程康[1] 翁建良[2] 

机构地区：[1]武汉理工大学 [2]长江水利委员会设计院

出　　处：《武汉工业大学学报》2000年第4期88-90,共3页

摘　　要：根据气体等熵膨胀理论、应力波传播理论和格里菲斯强度准则 ,推导了孔底压力和基岩破裂深度的计算公式 ,提出了孔底设柔性垫层对延缓爆轰作用的理论分析方法 ,并进行了工程实际验证 。In terms of equal esentropy expanding theory and Griffins strength criteria, the computation formula of hole base pressure and rock cracking depth has been deduced. The theory analysis way of Which the soft cushion added for the hole base can delay detonating action has been presented. At the same time, the practical engineering inspection is carried out, the computation result comes close to the practical one.

关 键 词：水工建筑物 基岩保护层开挖 一次性爆破 

分 类 号：TV52[水利工程—水利水电工程] TV67