Explosive Excavation Pattern

Explosive Excavation, Instant. The Corps of Engineers is in the process of developing a construction technique called "explosive excavation which.promises to save money, time, and the environment. Rows of 1 to 10 ton explosive charges are buried in a pattern to both break up the material and move it out of the excavation (See Fig Ex5). Controlled blasting techniques minimize fracturing beyond the excavation boundary. Illustration shows arrangement for a 500-foot long railroad cut at Trinidad, Colorado. In several demonstrations, cost was less than... 

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