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ATTENUATION LAW OF STRESS WAVE
IN THE BUKIT TIMAH GRANITE |
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Abstract The impact compressional test s of Bukit Timah granite of Singapore were conducted using a light gas
gun. The plane st ress waves were observed in the sample and polynomial equation representing propagation and at2
tenuation law under the state of one2dimensional st rain in the granite is obtained by regression of the experimental
data. The attenuation rateηof st ress peak is discussed and the attenuation indexesαwithin different st ress range
are given.
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Received: 12 August 1999
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