Shock and Blasting Effects on Power Transmission Structures

This paper presents outcomes of a blast effect on power transmission structure study, which mainly include discussions about considerations for blast plan establishment. The ultimate goal of this study is to provide scientific data and a systematic research procedure that would allow power companies to determine the best blast plan to secure power transmission assets during blasting. Through this study, the importance of peak-particle velocity, airblast, flyrock, fracture and mudseams in blast planning has been identified. Factors such as blast distance and velocity, structure type and area geology should be included in the blast planning. A design example is included to demonstrate the procedures recommended herein.