Probabilistic analysis of blasting-induced rock damages in tunneling

In Mo Lee, B. K. Park, K. H. Cho, C. W. Park

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

2 Citations (Scopus)

Abstract

Blast-induced rock damage and overbreak in tunneling construction may result in increasing construction costs and declining the stability of tunnel. In this paper, the rock mass behavior induced by tunnel blasting is analyzed by using numerical analysis based on continuum damage mechanics and fuzzy-random probability theory so that the degree of damage in remaining rock and overbreak can be estimated. An equation to estimate the blasting pressure is derived from the application of shock wave theory; statistical analysis is also performed to systematically assess the uncertainty of the proposed pressure equation. A numerical continuum damage model is proposed to assess the rock mass behavior induced by tunnel blasting. The proposed model is coded and linked to a commercial software ABAQUS/Explicit through user subroutine. The result of numerical analysis showed that the degree of overbreak can be reasonably evaluated by adopting the concept of fuzzy-failure probability.

Original languageEnglish
Title of host publicationUnderground Space Use: Analysis of the Past and Lessons for the Future - Proceedings of the 31st ITA-AITES World Tunnel Congress
Pages1079-1084
Number of pages6
Volume2
Publication statusPublished - 2005 Dec 1
Event2005 ITA-AITES World Tunnel Congress and 31st General Assembly - Istanbul, Turkey
Duration: 2005 May 72005 May 12

Other

Other2005 ITA-AITES World Tunnel Congress and 31st General Assembly
CountryTurkey
CityIstanbul
Period05/5/705/5/12

Fingerprint

Tunneling (excavation)
overbreak
Blasting
blasting
damages
Rocks
Tunnels
damage
tunnel
rock
Numerical analysis
continuum damage mechanics
Continuum damage mechanics
Subroutines
ABAQUS
shock wave
mechanic
Shock waves
statistical analysis
Statistical methods

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geography, Planning and Development

Cite this

Lee, I. M., Park, B. K., Cho, K. H., & Park, C. W. (2005). Probabilistic analysis of blasting-induced rock damages in tunneling. In Underground Space Use: Analysis of the Past and Lessons for the Future - Proceedings of the 31st ITA-AITES World Tunnel Congress (Vol. 2, pp. 1079-1084)

Probabilistic analysis of blasting-induced rock damages in tunneling. / Lee, In Mo; Park, B. K.; Cho, K. H.; Park, C. W.

Underground Space Use: Analysis of the Past and Lessons for the Future - Proceedings of the 31st ITA-AITES World Tunnel Congress. Vol. 2 2005. p. 1079-1084.

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

Lee, IM, Park, BK, Cho, KH & Park, CW 2005, Probabilistic analysis of blasting-induced rock damages in tunneling. in Underground Space Use: Analysis of the Past and Lessons for the Future - Proceedings of the 31st ITA-AITES World Tunnel Congress. vol. 2, pp. 1079-1084, 2005 ITA-AITES World Tunnel Congress and 31st General Assembly, Istanbul, Turkey, 05/5/7.
Lee IM, Park BK, Cho KH, Park CW. Probabilistic analysis of blasting-induced rock damages in tunneling. In Underground Space Use: Analysis of the Past and Lessons for the Future - Proceedings of the 31st ITA-AITES World Tunnel Congress. Vol. 2. 2005. p. 1079-1084
Lee, In Mo ; Park, B. K. ; Cho, K. H. ; Park, C. W. / Probabilistic analysis of blasting-induced rock damages in tunneling. Underground Space Use: Analysis of the Past and Lessons for the Future - Proceedings of the 31st ITA-AITES World Tunnel Congress. Vol. 2 2005. pp. 1079-1084
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