Study on the effect of jointed rock mass to the tunnel smooth blasting

摘要

The existence of joints and fractures have a vital influence on tunnel smooth blasting, according to the investigations of many outcropping of joints and fractures in tunnel face and blasting effect, we classifying the joints and fractures which influenced on blasting effect and analysis the reasons for the production of the effect, aims to provide valuable instructions to jointed rock masses tunnel smooth blasting.