一、问题的提出定向爆破筑坝方法应用于水利工程始于40年代,实践较多的国家是我国和苏联。在应用过程中,有许多经验和教训。后者既反映了方法本身的复杂性,也反映了其他方面处理不当,存在以下问题:1、水文计算有误或爆破季节选择不当,以致洪水漫顶,冲毁爆破堆积体的全部或部分,造成工程失事。 First, the problem put forward Directional blasting dam method used in water conservancy projects began in the 1940s, more practice in China and the Soviet Union. In the application process, there are many experiences and lessons. The latter not only reflects the complexity of the method itself, but also reflects other aspects of improper handling. The following problems exist: (1) The hydrological calculation is incorrect or the season of blasting is improperly selected, so that the flooding floods to destroy all or part of the blasting body, Cause the project crashed.