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Ground and Air Vibration Caused by Surface Blasting. Volume V. Air Vibrations: Monitoring and Predictor Assessment.

Authors
Morlock-CR; Daemen-JJK
Source
NTIS: PB/84-191972 :175 pages
Link
NIOSHTIC No.
10003879
Abstract
Airblasts were monitored at four coal strip mines and at a limestone quarry. Instrumentation selection and use are described. Data analysis includes an assessment of the predictability of peak overpressures by means of the cube root scaled distance law. Predictability for the cases studied is not good. A computer program was written to simulate airblasts induced by multiple-hole blasts. A series of small experimental blasts were detonated and monitored to allow an assessment of the program. It is clear that airblasts, especially when induced by very small charges and monitored at very close distances, are highly sensitive to detonation times. Retrofitting of airblast records occasionally was possible, but considerably improved fieldwork is required to validate or refute the computer model.
Publication Date
19830101
Document Type
CP; Final Contract Report;
Fiscal Year
1983
NTIS Accession No.
PB84-191972
NTIS Price
A09
Identifying No.
OFR 105(5)-84
NIOSH Division
WO;
Source Name
NTIS: PB/84-191972
State
AZ;
Performing Organization
Univ. of Arizona
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