DESIGN OF EXCAVATION BLASTS TO PREVENT DAMAGE

The July, 1968, issue of Civil Engineering included an article stating criteria for designing excavation blasts to avoid damaging nearby structures. Blasts causing particle velocities not greater than 2 in./sec were considered safe. Ten years of additional experience has shown that the 2 in./sec criteria was too rigid; some structures have been damaged at smaller values, some have withstood larger blasts. The author recommends that blast design take into consideration the condition of nearby structures and states that humans, because they are more sensitive to vibration than are structures, can be the controlling factor in blast design. /Author/

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  • Accession Number: 00179731
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 12 1978 12:00AM