Browsing NTNU Open by Author "Olsson, Roger"
Now showing items 1-11 of 11
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Applicability of Reinforced Ribs om Sprayed Concrete in Sections of Poor Quality and Swelling Rock Mass
Høien, Are Håvard (Doctoral theses at NTNU;2018:314, Doctoral thesis, 2018)When excavating tunnels, reinforcement and support is required depending on the quality of the rock mass. In good quality rock mass, simple reinforcement such as sprayed concrete and rock bolts is usually adequate as ... -
Back calculation of in-situ stresses based on the performed secondary stress measurements by using numerical calculations - connected to the West Link Project
Panthi, Kriti (Master thesis, 2023)Hovedformålet med masteroppgaven er å estimere og evaluere in-situ spenningstilstanden som eksisterte før åpning av pilottunnelene i en berghall til et jernbaneprosjekt. Estimering av in-situ bergspenninger er nødvendige ... -
Behaviour of Rock Support Affected by Earthquake Loading - A Numerical Study
Karki, Bibek (Master thesis, 2021)Underground structures have played a major role in supporting infrastructure development such as water supply systems, storage facilities, transportation, and others. Furthermore, the construction of underground facilities ... -
Cements for tunnel grouting – Rheology and flow properties tested at different temperatures
Bohloli, Bahman; Skjølsvold, Ola; Justnes, Harald; Olsson, Roger; Grøv, Eivind; Aarset, Arnstein (Journal article; Peer reviewed, 2019)This paper presents work being carried out in Work Package 3 of TIGHT (True Improvement in Grouting High pressure Technology for tunnelling) project. The objective is to investigate flow and mechanical properties of three ... -
Direkte fundamentering på berg
Raastad, Maria Thonhaugen (Master thesis, 2020)Direkte fundamentering på berg er et tema som er viet lite oppmerksomhet. Oppgaven er et bidrag i retningen av økt fokus og forbedret praksis. Det er gjort analyser av samvirket mellom fundament og berg for å utarbeide ... -
Experimental triaxial testing of swelling gouge materials
Høien, Are Håvard; Nilsen, Bjørn; Vistnes, Gunnar; Olsson, Roger (Journal article; Peer reviewed, 2019)Adequate rock support in weakness zones that may contain swelling minerals poses one of the main challenges of excavating tunnels in hard rock conditions. Deformations under such conditions are influenced by several factors, ... -
Main aspects of deformation and rock support in Norwegian road tunnels
Høien, Are Håvard; Nilsen, Bjørn; Olsson, Roger (Journal article; Peer reviewed, 2019)The general geology of Norway makes most of its tunnels to be constructed mainly in strong rock intersected by weakness zones of different sizes and characteristics. The Norwegian support tradition is, to the largest degree ... -
Modellering av grunnvannsstrømning i SEEP/W ved tunneldriving
Stølen, Gunhild Viljugrein (Master thesis, 2022)For at et tunnelprosjekt skal være vellykket forutsetter det at ytre miljø ikke blir påvirket i nevneverdig grad av tunneldrivingen. Grunnvann som siver inn i tunnelen kan redusere poretrykket og grunnvannsnivået over store ... -
Rock Stress Estimation for Unlined Pressure Tunnel Design
Ødegaard, Henki (HydroCen brief;Nr. 8, Report, 2022)In underground hydropower projects rock tunnels are used extensively to convey water for the purpose of generating power. As these tunnels represent a major cost element in typical hydropower developments, efforts are made ... -
Rock Stress Estimation for Unlined Pressure Tunnel Design
Ødegaard, Henki (Doctoral theses at NTNU;2021:345, Doctoral thesis, 2021)In underground hydropower projects rock tunnels are used extensively to convey water for the purpose of generating power. As these tunnels represent a major cost element in typical hydropower developments, efforts are made ... -
Vikertunnelen - Ulike ingeniørgeologiske problemstillinger knyttet til stabilitet og sikring av vegtunnel
Engeskaug, Siri (Master thesis, 2020)I forbindelse med planlegging av ny E134 mellom Dagslett og E18 i Lier i Viken fylkeskommune, er det blitt utført ingeniørgeologiske vurderinger i tidligfase av vegtunnelen for “Vikeralternativet”. Vegtunnelen som omtales ...