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Structural response and cosmetic cracking in residences from surface mine blasting.

Authors
Siskind-DE; Stagg-MS
Source
Proceedings of the 59th Shock and Vibration Symposium, October 18-20, 1988, Albuquerque New Mexico, 1998 Oct; :1-16
Link
NIOSHTIC No.
10006896
Abstract
The U.S. Bureau of Mines studied the problems of blasting-vibration-induced structural response and cracking of low-rise residential structures in a series of research projects between 1976 and 1983. This paper summarizes the published Bureau findings and presents them from the point of view of the cracking and failure of the construction materials used for homes. The damage data suggest that, for plaster and wallboard attached to the super-structure, an increase in the rate of cracking is not likely to result from blasts generating vibrations of less than 0.5 In/s. Data on cracks in masonry walls suggest that blast-induced vibration levels of up to 3.0 In/s may be a threshold for local block-length cracks. However, additional data are needed to quantify vibration level effects necessary to generate stair-stepped cracks in masonry walls, which indicate loss of shear load capacity.
Keywords
Mining; Blasting; Vibration; Structural analysis; Structural failure; Construction materials; Vibration effects; Surface mining
Publication Date
19881001
Document Type
OP; Conference/Symposia Proceedings
Fiscal Year
1989
NTIS Accession No.
NTIS Price
Identifying No.
OP 67-89
Source Name
Proceedings of the 59th Shock and Vibration Symposium, October 18-20, 1988, Albuquerque, New Mexico
State
NM
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