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Blasting Vibrations and Their Effects on Structures.

PB231971

Publication Date	1971
Personal Author	Nicholls, H. R.; Johnson, C. F.; Duvall, W. I.
Page Count	120
Abstract	This report presents the results of the Bureau of Mines ten-year program to study the problem of air blast and ground vibrations generated by blasting. The program included an extensive field study of ground vibrations; a consideration of air blast effects; an evaluation of instrumentation to measure vibrations; establishment of damage criteria for residential structures; determination of blasting parameters which grossly affected vibrations; empirical safe blasting limits; and the problem of human response. While values of 2.0 in/sec particle velocity and 0.5 psi air blast overpressure are recommended as safe blasting limits not to be exceeded to preclude damage to residential structures, lower limits are suggested to minimize complaints. (Modified author abstract)
Keywords	Blasting Blast effects Buildings Explosions Distance Vibration Shock waves Overpressure Ground motion Ground shock
Source Agency	Invalid Source Agency Code
NTIS Subject Category	79E - Detonations, Explosion Effects, & Ballistics 50B - Civil Engineering
Corporate Authors	BUREAU OF Mines, Washington, D.C.
Supplemental Notes	Prepared by Denver Mining Research Center, Colo.
Document Type	Technical Report
Title Note	Final research rept.
NTIS Issue Number	197415

Blasting Vibrations and Their Effects on Structures.

Blasting Vibrations and Their Effects on Structures.
PB231971

Publication Date	1971
Personal Author	Nicholls, H. R.; Johnson, C. F.; Duvall, W. I.
Page Count	120
Abstract	This report presents the results of the Bureau of Mines ten-year program to study the problem of air blast and ground vibrations generated by blasting. The program included an extensive field study of ground vibrations; a consideration of air blast effects; an evaluation of instrumentation to measure vibrations; establishment of damage criteria for residential structures; determination of blasting parameters which grossly affected vibrations; empirical safe blasting limits; and the problem of human response. While values of 2.0 in/sec particle velocity and 0.5 psi air blast overpressure are recommended as safe blasting limits not to be exceeded to preclude damage to residential structures, lower limits are suggested to minimize complaints. (Modified author abstract)
Keywords	Blasting Blast effects Buildings Explosions Distance Vibration Shock waves Overpressure Ground motion Ground shock
Source Agency	Invalid Source Agency Code
NTIS Subject Category	79E - Detonations, Explosion Effects, & Ballistics 50B - Civil Engineering
Corporate Authors	BUREAU OF Mines, Washington, D.C.
Supplemental Notes	Prepared by Denver Mining Research Center, Colo.
Document Type	Technical Report
Title Note	Final research rept.
NTIS Issue Number	197415