药壶爆破在黑河工程溢洪洞出口高边坡开挖施工中的应用

Application of medical pot blasting to excavate discharge tunnel outlet on the high slopefor construction of Heihe Project

着重介绍了药壶爆破参数的选取方法及施工技术，阐述了采用药壶爆破开挖高边坡时对开挖轮廊线及永久坡面进行控制的有效方法，通过实践证明了药壶爆破技术，在适宜的条件下应用于水利工程上，对加快工程进度、减少材料、劳力消耗具有重要的现实意义。

The parameter dedermination and construction method of medical pot blasting are introdued in the paper. The effective control of the excavation outline and permanent slope are expounded, too. It is shown by practice that the medical pot blasting method is suitable to be used in hydraulic projects, and it has important meaning to speed up construction, to lower down the material consumption, and to decrease the manpower input.