THE SAFE BLASTING AND THE CONTROL BLASTING PRINCIPLE
LEARN ON BLASTING PRINCIPLE AND MECHANICS BEHIND CONTROL BLASTING INTRODUCTION From the view of Hoek brown failure graph and failure criterion equation adjustments using the Geological structural index GSI, variation is confirmed to occur in the rock strength parameters due to the effect of Blasting, this was shown in the addition of Rock disturbance factor D to the determination of s,mb and a which are the rock factors constant. Rock is known to be DIANE (Disvontinous, Anisotropic, Heterogenous and non elastic) according to various claim by rock mechanist like N. Barton among others. Since rock has such dynamic characteristics, it becomes very difficult to understand the perfect behavior of Explosive energy and the quantity of powder require to cause the breaking and the casting of the rock mass. Actually what the generated during blast need to reflect is change in medium (solid to air, solid to liquid), this is the important of free face. Free face is the...