Multistage Tunnel Excavation and Support

Programvara

Version Notes:
FLAC 8.0

Level: Intermediate
Runs in Demo: No

Write Up
Walk Through
Project Files
Konsulttjänster

FLAC simulates the four excavation stages and three construction steps within each stage for a multistage tunnel excavation and construction. The convergence-confinement method is used to simulate the effect of the tunnel advance. A ground reaction curve is calculated to relate the effect of the advancing tunnel face to reduction in internal pressure within the excavated region. Both rockbolt support and a shotcrete liner are installed at different stages of the tunnel advance.

Keywords:

  • Multistage excavation
  • shallow tunnel
  • rockbolts
  • Shortcrete
  • Ground reaction curve
  • Mohr-Coulomb model

Materials:

  • Concrete
  • Rock
  • Steel

Analyses:

  • Static
Senaste nytt
  • ITASCA Strengthens North American Delivery of Integrated Geomechanics and Hydrogeology Solutions Drawing on decades of geomechanical and hydrogeological expertise, ITASCA has announced the formation of ITASCA...
    Läs mer
  • Från arkitektdröm till bergmekanik – Adina Sköld stärker ITASCA i Luleå Hon sa aldrig Luleå. Aldrig jord och berg. Det var arkitekt hon skulle bli. I...
    Läs mer
  • Operativ bergmekanik På ITASCA gillar vi en blandning av fältjobb och analyser. Vi erbjuder stöd inom operativ...
    Läs mer

Kommande händelser
15 sep.
ITASCA at EUROCK 2026: Advancing Innovation in Rock Engineering
ITASCA is pleased to announce its participation in EUROCK 2026 – ISRM Regional Symposium, taking place from 15–19 September 2026 in Sko... Läs mer
20 sep.
ITASCA to Participate in CouFrac 2026
ITASCA will be participating in CouFrac 2026, taking place from 20–23 September 2026 in Uppsala, Sweden. The conference brings together... Läs mer
26 okt.
ITASCA at Slope Stability 2026: Strategic Sponsor and Technical Contributor_2
ITASCA is proud to participate as a Strategic Sponsor in Slope Stability 2026, one of the world’s leading international symposiums focu... Läs mer