Ground accelerations caused by large quarry blasts

Creators: Hudson, D. E.; Alford, J. L.; Iwan, W. D.

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Abstract

Ground acceleration-time measurements have been made within 2000 ft. of two quarry blasts of total charge weight 185 tons and 673 tons. Ground accelerations were of a character and magnitude similar to those associated with damaging earthquakes. Complete response spectrum curves calculated from the acceleration records are presented. Direct comparisons are made between these results and previous similar measurements and calculations using identical instruments, which have been made of strong-motion earthquakes, H. E. blasts, and the Rainier nuclear blast.

Additional Information

Copyright © 1961, by the Seismological Society of America. Manuscript received for publication September 1, 1960. We are grateful to the Minnesota Mining and Manufacturing Company for their interest and cooperation which made these tests possible. Mr. R. E. Gundlach, regional manager, and Mr. G. J. LaVenture, production superintendent of the Corona quarry were most helpful throughout the project. Thanks are due Mr. W. K. Cloud and the United States Coast and Geodetic Survey for their cooperation, and to Mr. Jerry Morrill and Mr. Richard Maley of the U.S.C.G.S. for their assistance with the instrumentation. We should also like to express our appreciation to the National Science Foundation for their support through a research grant administered by their Engineering Sciences Division, which has contributed to the analysis of the data reported above.

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