Accession Number : AD0773649

Title :   Application of Military Guns to High Speed Drilling and Excavation in Rock--Project REAM.

Descriptive Note : Final rept. Apr-Dec 73,

Corporate Author : PHYSICS INTERNATIONAL CO SAN LEANDRO CALIF

Personal Author(s) : Watson,J. D.

Report Date : JAN 1974

Pagination or Media Count : 51

Abstract : In a joint program between the U.S. Army and the Bureau of Mines, military guns have been used to demonstrate a variety of excavation operations in rock. During field tests, 90-mm and 105-mm guns mounted on an M107 carrier were used to drill holes, drive tunnel, form a cut in a surface outcropping and break large boulders. A silencer, developed for the 90-mm system and tested underground for the Bureau of Mines tunneling and mining applications, is proposed to allow surface excavation in peacetime with artillery and tank guns. (Modified author abstract)

Descriptors :   *Tunneling, *Excavation, *Hypervelocity projectiles, Rock, Mining engineering, Projectiles, Self propelled guns, Cost effectiveness

Subject Categories : Civil Engineering
      Construction Equipment, Materials & Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE