Abstract
The existing vibration limits were developed for 1-2 story houses surrounding coal surface mines, and these limits are applied for ground vibrations as the criteria for the possible crack formation in structures. However, other blast design, soil conditions and structures require different vibration limits. There are no regulations for multistory building vibrations from blasting and there are no limits to assess possible dynamic settlements of soil and structures triggered by ground vibrations from blasting. Nevertheless, numerous case histories are available in technical papers which describe tolerable and unacceptable soil and structural vibrations measured for different soil conditions and structures. These case histories are valuable sources of information to evaluate vibration effects on structures, analyze vibration levels that do not produce damage to structures, determine the areas of application of the existing regulations and assess tolerable vibration limits for various structures during blasting operations.
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