鼠洞式孔;药室;
The plan that the falls blasting by prefab coyote hole primarily, and demolition the both sides drill hole scrap for auxiliary is used in ⅲ-phase RCC cofferdams in the Three Gorges Project, in which prefab coyote blasting attract more attention especially.
三峡工程三期RCC围堰采用以预置集中药室倾倒爆破为主、两端钻孔炸碎爆破为辅的拆除爆破方案,其中预置集中药室的围堰爆破尤其令人关注。
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