提高爆破能量利用率,是爆破工程的一个重要问题。本文从岩体软弱带的作用方面探讨这一问题。所谓岩体软弱带,不是指岩体中的裂隙和层面等软弱面,而是指岩体中的断层破碎带、软弱岩石夹层和喷出岩的间歇层等。一般来说,软弱面的宽度小,延伸短,无异物充填,仅对爆破单位用药量和块度等有一定影响。而软弱 Improving blasting energy utilization rate is an important issue in blasting engineering. This article explores this issue from the role of rock weak zones. The so-called rock weak zone, not refers to the rock in the cracks and the surface of the weak surface, but refers to the rock mass fault zone, soft rock intercalation and intermittent layers of rock and so forth. In general, the width of the soft face is small, short extension, no foreign body filling, only the burst unit dosage and block have a certain degree of impact. And weak