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Ground Motions from and House Response to Underground Aggregate Mining
Public DepositedA unique judicial opportunity allowed measurement of the response of three cracks in residential structure to blasting for underground aggregate mining. Instrumented cracks were located in the interior basement CMU mortar and upstairs dry wall as well as exterior brick work. The dynamic environment was unusual. Even though the blasting occurred some 490 m (1600 ft) away, excitation frequencies were unusually high and there were no apparent surface waves. In addition there was no air overpressure wave to produce secondary crack response. As is typical, long term environmental effects produced greater crack response than did the blast induced ground motions.
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Dowding_et_al-2007-Ground_Motions_From_and_House_Response_to_Underground_Aggregate_Mining.pdf | 2017-07-05 | Public |
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