Unexplained blasting vulnerabilities in a historic town

D. F. Laefer, B. Loughlin, S. Hickey, S. O'Farrell, G. O'Mahony

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Historic residential and commercial structures in an early twentieth century town in the southeastern United States that is adjacent to a quarry have regularly and repeatedly been damaged, despite the diligent keeping of blasting levels below peak particle acceleration levels previously thought to be safe. This paper explores the possibility of the damage mechanism being blasting-induced partial, repetitive liquefaction and the investigation methodology that led to this conclusion. The detonation of high explosives has been used in research to induce liquefaction at designated field sites and in laboratories, but the possibility of this occurring as an unintentional side-effect of commercial blasting has not been explored. This paper evaluates data from an actual community to assess the likelihood that the recorded damage is being caused by the quarrying in the southeastern United States. Although the results are not definitive they are strongly indicative that induced liquefaction is endangering this historic town.

Original languageEnglish (US)
Title of host publicationStructural Analysis of Historic Construction
Subtitle of host publicationPreserving Safety and Significance - Proceedings of the 6th International Conference on Structural Analysis of Historic Construction, SAHC08
Pages1207-1213
Number of pages7
StatePublished - 2008
Event6th International Conference on Structural Analysis of Historic Construction: Preserving Safety and Significance, SAHC08 - Bath, United Kingdom
Duration: Jul 2 2008Jul 4 2008

Publication series

NameStructural Analysis of Historic Construction: Preserving Safety and Significance - Proceedings of the 6th International Conference on Structural Analysis of Historic Construction, SAHC08
Volume2

Other

Other6th International Conference on Structural Analysis of Historic Construction: Preserving Safety and Significance, SAHC08
CountryUnited Kingdom
CityBath
Period7/2/087/4/08

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Architecture
  • Safety Research

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  • Cite this

    Laefer, D. F., Loughlin, B., Hickey, S., O'Farrell, S., & O'Mahony, G. (2008). Unexplained blasting vulnerabilities in a historic town. In Structural Analysis of Historic Construction: Preserving Safety and Significance - Proceedings of the 6th International Conference on Structural Analysis of Historic Construction, SAHC08 (pp. 1207-1213). (Structural Analysis of Historic Construction: Preserving Safety and Significance - Proceedings of the 6th International Conference on Structural Analysis of Historic Construction, SAHC08; Vol. 2).