一、前言最近,要求把反向起爆爆破法作为新技术在煤矿采用。这个爆破法与正向起爆爆破法相比有许多优点,如残留火药及由于断线造成的空间和地面爆炸发生的较少。也就是所说的安全面大,并且爆破效果也好。在欧洲的一些主要产煤国家已经见到一些反向起爆的实用例子。但是,按照日本目前的矿山 I. INTRODUCTION Recently, it has been demanded that reverse-blast blasting be adopted as a new technology in coal mines. This blasting method has many advantages over the forward detonation blasting method, such as residual powder and less space and ground explosion due to wire breakage. That is the big security, and the blasting effect is good. Some of the major coal-producing countries in Europe have seen some practical examples of reverse detonation. However, according to the current mine in Japan