在苏联山区常常采用定向爆破法筑坝。这种筑坝方法具有工期短,节省劳力,经济效益大,以及有助于保护自然环境等优点。一个水库、坝址和坝型的选择,主要决定于工程用途、建坝材料、地形地质(包括岩石物理力学性质)和水力特征。狭谷形式和岸边岩体,决定定向爆破可用的岩石数量和条件。爆破上坝材料主要参数是颗粒级配,它依赖于岩石自然裂隙和爆破作用的结果。 Directional blasting is often used to dam the mountains in the Soviet Union. This damming method has the advantages of short construction period, labor-saving, great economic benefits and help to protect the natural environment. The choice of a reservoir, dam site, and dam type depends primarily on the project application, dam material, topography (including petrophysical properties), and hydraulic characteristics. The formation of narrow valleys and bank rocks determine the number and conditions of rocks available for directional blasting. The main parameter of blasting upper dam material is particle grading, which depends on the result of natural rock fracture and blasting.