Performance of Immersed Tunnels subjected to Settlements: Noordtunnel Case Study

In the next decades, Rijkswaterstaat will renovate many existing immersed tunnels so they can meet their intended lifespan in a good condition. Ongoing settlements could be a threat to the tunnel structural performance, as deformation may cause structural damage. Currently, immersed tunnels are subjected to greater and more uneven settlements...

Technical feasibility of a Dutch radioactive waste repository in Boom Clay: Tunnel crossings

OPERA-PU-TUD321b<br/>Radioactive substances and ionizing radiation are used in medicine, industry, agriculture, re- search, education and electricity production. This generates radioactive waste. In the Neth- erlands, this waste is collected, treated and stored by COVRA (Centrale Organisatie Voor Radioactief Afval). After interim storage for a...

A numerical and reliability-based investigation into the technical feasibility of a Dutch radioactive waste repository in Boom Clay

OPERA-PU-TUD311<br/>The Onderzoeks Programma Eindberging Radioactief Afval (OPERA) is the third national research programme for the geological disposal of radioactive waste in the Netherlands, operating during the period 2011 to 2016. This document is the final report of Work Package 3.1, where the principal technical feasibility of the current...

Full system response Thomassen tunnel under impact load using LS-DYNA (concept version 3)

In the Delft Cluster work package “Bijzondere Belastingen” (CT01.21) the consequences of a BLEVE and a reduced BLEVE are considered. These phenomena have a low probability of occurrence, but might have immense consequences. Therefore, a deterministic consideration seems not possible. The results of the work package must facilitate the...

DC project Bijzondere Belastingen: Soil response during an explosion in a tunnel

In this Delft Cluster work package “Bijzondere Belastingen” (CT01.21) the consequences of an accident with the transport of explosion hazardous goods are considered: BLEVE (Boiling Liquid Expanding Vapour Explosion) and gas explosion. These phenomena have a low probability of occurrence, but might have immense consequences. Therefore, a...

Bijzondere belastingen in tunnels: Eindrapport

Verkeerstunnels en overkapte wegen (landtunnels) komen de milieukundige en stedenbouwkundige inpassing ten goede en maken meervoudig ruimtegebruik in de stad mogelijk. Het aantal tunnels en overkappingen groeit dan ook. Dit maakt het vervoer van explosiegevaarlijke stoffen en onder hoge druk vervoerde gassen steeds moeilijker, want tankwagens...

Praktijkonderzoek Boortunnel Groene Hart: Liggerwerking van boortunnels in de bouwfase: Eindrapport F512

Behind the tunnel boring machine (TBM) the rings form a tunnel lining that is embedded in grout and soil. The TBM exerts a normal force, a bending moment and a shear force on the lining. The tunnel rings behind the TBM experience a load through the grout, ground and ground water, but the ground also acts as a support medium. A ring that has just...

Praktijkonderzoek Boortunnel Groene Hart: Liggerwerking van boortunnels in de bouwfase

Behind the tunnel boring machine (TBM) the rings form a tunnel lining that is embedded in grout and soil. The TBM exerts a normal force, a bending moment and a shear force on the lining. The tunnel rings behind the TBM experience a load through the grout, ground and ground water, but the ground also acts as a support medium. A ring that has just...

Totaal andere Tunnels: Denken in nieuwe richtingen

In 2004 zijn de eerste gedachten over een Totaal Andere Tunnel gevormd. Om deze gedachten verder vorm te geven is door het Consortium DelftCluster-COB (DC-COB) het project Totaal Andere Tunnels, ofwel TAT, opgezet binnen het overkoepelende project “Innovatief ondiep bouwen”. Aanleiding voor het project TAT komt voort uit de ontwikkelingen in het...

Beheerste Zakkingen: Evaluatie tweede fase Groene Harttunnel: ontwerpparameters bij krachtwerking, groutdruk en invloed beweging tunnelbuis: Tussenrapport F512

Er wordt een eenvoudige methode gegeven om vanuit de groutinjectieverdeling en de grouteigenschappen, de verticale groutdrukgradiënt direct achter de TBM te kwantificeren. Deze groutdrukgradiënt is nodig als input voor de berekening van het krachtenspel in de tunnelbuis tijdens tunnelbouw. Het bestaande gefaseerde analytische liggerwerkingsmodel...

Thermodynamic and gas dynamic aspects of a BLEVE

This first chapter will give an introduction to what is a BLEVE, Boiling Liquid Expanding Vapor Explosion, and its hazards particularly in relation to tunnel safety. It will be shown that several definitions of a BLEVE can be given, depending on the aspect put in focus. In particular distinction can be made between two groups of references,...

Effect of explosions in tunnels - Preliminary assessment of the structural response

Background Nowadays goods which are sensitive for explosion are transported along alternative routes that exclude tunnels. These are mostly secondary roads. The transport along these alternative roads has many disadvantages, such as the safety along the route, the air- and noise pollution along the road and the higher transport costs. Therefore,...

Delft Cluster: Knowledge mapping, virtual knowledge centre and special interest group for DC libraries

Complex variable solutions of elastic tunneling problems

In this report it is investigated whether certain problems of stresses and deformations caused by deformation of a tunnel in an elastic half plane can be solved by the complex variable method, as described by Muskhelishvili (1953).

Double-O-Tube (DOT) tunnels

Rapport in opdracht van de Leerstoel Ondergronds Bouwen, Technische Universiteit Delft en het Centrum Ondergronds Bouwen (COB). Dit verslag gaat dieper in op de DOT-tunnelmethode, een boormethode waarmee tunnels geboord worden die bestaan uit twee elkaar overlappende cirkels. Deze cirkels kunnen naast elkaar geplaatst worden of boven elkaar.

Tunnel technology: Ontwikkeling van nieuwe tunnelvormen in Japan

Rapport in opdracht van de Leerstoel Ondergronds Bouwen, Technische Universiteit Delft en het Centrum Ondergronds Bouwen (COB). Tot nu toe zijn vrijwel alle geboorde tunnels rond. Het is echter waarschijnlijk dat in de toekomst meer tunnels met andere vormen geboord zullen gaan worden. In dit rapport wordt een overzicht gegeven van de huidige...

Watertightness of concrete tunnel structures

The Netherlands are situated in the delta. of the rivers Rhine, Meuse and Scheldt. Therefore the ground mainly consists.of sediments, such as sand, clay and silt. In certain regions peat layers of varying thickness are found. The high permeability of some of these materials and the fact that the groundwater table is generally only 1 m below...