FUNDAMENTAL STUDIES OF EXPLOSIVE CHARGES VOLUME II: CONCRETE BREACHING AND WOOD CUTTING CHARGES

摘要

This program resulted in a number of accomplishments summarized below:n1. Additional basic knowledge was gained on the factors involved in the destruction of concrete by explosive charges.n2. The formula for the breaching of concrete walls was modified.n3. Suggestions have been made regarding changes in the shape of demolition charges to increase their effectiveness.n4. Tamped (or earth-covered) charges were studied with special reference to the role of the tamping material.n5. The demolition of concrete beams by pressure charges was in-vestigated.n6. Additional basic knowledge was gained on the factor involved in the cutting of wood by explosive charges.n7. A new technique was suggested for cutting trees and timbers.