TBM performance prediction models. Comparison between tender prognosis and construction performance. Case study: Anneberg-Skanstull Tunnel (Stockholm, Sweden)

master's thesis

• Title: TBM performance prediction models. Comparison between tender prognosis and construction performance. Case study: Anneberg-Skanstull Tunnel (Stockholm, Sweden) : master's thesis
• Title (croatian): TBM modeli predviđanja napredovanja. Usporedba napredovanja predviđenog u natječaju i u stvarnosti. Projekt: Anneberg–Skanstull tunel (Stockholm, Švedska) : diplomski rad
• Author: Jozo Čotić
• Mentor: Vinko Škrlec (mentor)
• Mentor: Iva Kolenković Močilac (komentor)
• Committee member: Vinko Škrlec (predsjednik povjerenstva)
• Committee member: Iva Kolenković Močilac (član povjerenstva)
• Committee member: Mario Dobrilović (član povjerenstva)
• Committee member: Vječislav Bohanek (član povjerenstva)
• Committee member: Siniša Stanković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Mineralogy, Petrology and Mineral Resources); Zagreb
• Defense date and country: 2022-09-15, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology

Abstract

The most widely used prediction model for hard rock is the Colorado School of Mines (CSM) model, which was used for tender prediction in the Anneberg - Skanstull Tunnel (AST) project. However, during the construction phase, the TBM penetration rate was lower than predicted in the model. Intact rock strength is usually the first rock mechanic parameter obtained from geological investigation for tunnelling projects. This is one of the key parameters used in the Tunnel Boring Machine (TBM) prediction model. The most common rock mechanic test for intact rock strength determination is the Uniaxial Compressive Strength (UCS). After core sampling from the tunnel, new UCS values were obtained, analysed, filtered, and implemented in the CSM model to generate new penetration rates for different lithologies.

Abstract (croatian)

Za stijene visoke čvrstoće, najčešće korišteni TBM model predviđanja je Colorado School of Mines (CSM), koji je i korišten u natječaju za izradu Anneberg-Skanstull tunela (AST). Međutim, tijekom konstrukcije tunela, uočeno je sporije napredovanje nego što je predviđeno u modelu. Svojstva stijena obično su prva informacija dobivena iz geoloških istraživanja kod izrade tunela. Ovo je jedan od ključnih parametara korištenih kod izrade modela za predviđanje napredovanja stroja za bušenje tunela (eng. TBM). Najčešća metoda ispitivanja stijenske mase je Jednoosna Tlačna Čvrstoća (eng. UCS). Nakon jezgrovanja u tunelu, nove UCS vrijednosti su dobivene, analizirane i uvrštene u CSM model s ciljem generiranja novih stopa napredovanja za druge litologije.

• Keywords: Tunnel Boring Machine (TBM); Uniaxial Compressive Strength (UCS); Colorado School of Mines (CSM); Penetration rate (PR)
• Keywords (croatian): stroj za bušenje tunela (eng. TBM); jednoosna tlačna čvrstoća (eng. UCS); Colorado School of Mines (CSM); stopa napredovanja (eng. PR)
• Language: english
• URN:NBN: urn:nbn:hr:169:118906
• Study programme: Title: Geology; specializations in: Geology of mineral resources and geophysical explorations; Course: Geology of mineral resources and geophysical explorations; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra geologije (magistar/magistra geologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2026-10-05
• Created on: 2022-10-06 07:33:05