Searched for: subject%3A%22Immersed%255C%2Btunnel%22
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Zhang, X. (author)
doctoral thesis 2023
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Zhang, X. (author), Broere, W. (author)
Monitoring the deformations of immersed tunnels is important during the entire tunnel service life to assess the structural integrity of the tunnel. Conventional joint deformation monitoring is based on manual levelling measurements and normally occurs only at multi-year intervals, which does not allow to capture short term deformation...
journal article 2023
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JACOB, JOSEPH (author)
Many immersed tunnels have already reached or are about to reach the halfway point of their intended lifespan of 100 years. Around this time, several structural problems were noticed during inspection which have led to performance deterioration and durability issues of the tunnel. Often large- scale maintenance was required to meet the design...
master thesis 2022
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Kwok, Matthew (author)
The 1st Heinenoordtunnel is an immersed tube which has been open for service in the Netherlands since 1969. Over the past 50 years, a large and increasing settlement has been measured along the tunnel alignment. The greatest value of settlement (65 mm) occurs in tunnel element 1 from 1978 to 2018. The maximum differential settlement has reached...
master thesis 2022
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de Haas, K. (author), Berkhout, B (author), Dekker, H.R.E. (author), Broere, W. (author)
Determining the scope of (structural) renovation of aging tunnels is a complicated task and modular renovation is becoming increasingly necessary. The COB Tunnel Programme aims at developing the knowledge necessary to renovate these tunnels in a modular fashion, to reduce hindrance as much as possible. Part of this program is the development of...
conference paper 2022
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Vilanova Hanusaik, Natalia (author)
Due to the recent increase in traffic capacity requirements, the need for larger spans in immersed concrete tunnels has become a pressing matter. Although commonly used in Europe, reinforced concrete has a structural capacity limit when it comes to the transverse span length. The implementation of post-tensioning could allow for longer spans and...
master thesis 2021
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de Jong, Arne (author)
Immersed tunnels, located in waterways, could be a limiting factor in the dredging in waterways. This dredging is required since cargo vessels draught increased the past decades. In this thesis a new method is defined for temporarily, effectively, re-floating immersed tunnels. With this method extra risks arise, for these risks’ measures are...
master thesis 2020
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Bakker, Floor (author)
To exploit its socio-economic functions, engineering measures are regularly applied in estuaries. Estuaries are, however, known to be very complex systems. Stemming from this complexity is the generation of a so-called estuarine turbidity maximum (ETM), which poses great siltation problems to the engineering measures. An engineering measure,...
master thesis 2020
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Jansen, Johan (author)
When designing a construction pit adjacent to a navigation channel, the event of a ship colliding with the structure is something to take into account in the design of the pit. However, several aspects regarding ship collisions, i.e. the probability of occurrence of a collision, the magnitude of the collision force and the influence on the...
master thesis 2019
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van Amsterdam, Bob (author)
Settlement data of the Kiltunnel and the Heinenoordtunnel show that immersed tunnels in the Netherlands have been experiencing much larger settlement than expected when designing the tunnels causing cracks in the concrete and leakages in the joints. Settlements of 8 - 70 mm have been measured at the Kiltunnel and of 7 - 30 mm at the...
master thesis 2019
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van Montfort, Ruben (author)
In 2009 and 2010, two leakages through immersion joints occurred in the First Coen Tunnel near Amsterdam. From the study on t-he cause of these leakages, it followed that there was a potential problem for existing immersed tunnels: failure of the temporary Gina-seal combined with corrosion on the clamping structure of the definitive Omega-seal....
master thesis 2018
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Wu, Xinhang (author)
Due to increased traffic density, there is a tendency to construct larger immersed tunnels with larger tunnel elements both in transversal and longitudinal direction resulting in a more critical design of the joints. Especially for those tunnels with relatively soft foundation and high siltation, there is no mature experience for reference. This...
master thesis 2017
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Jelia, Jawid (author)
Immersed tunnel elements are prefabricated in the construction yard and then transported to the construction site to be integrated into the tunnel. During the transportation and immersion, the floating tunnel element is connected via cables to the immersion barges/pontoons. In this study, the hydrodynamical behavior of a floating tunnel element...
master thesis 2017
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Rahadian, Rheza (author)
Watertightness and leakage prevention is crucial in every tunnel joint design. Immersed tunnels have been utilizing the Gina-Omega gasket solution since the 1960s to prevent leakage from occurring. However, after almost 50 years of service life, leakages were detected in the immersion joints, which leads to an investigation into the source of...
master thesis 2017
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Sinha, T. (author)
The developments in the technology and design philosophy since the first immersed tunnel was completed more than a century ago. These developments include, amongst others: the introduction of the Gina rubber gasket between elements; the division of elements into sections divided by flexible joints; various foundation methods; and the transport...
master thesis 2017
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Bekarlar, K.Z. (author)
Traditional reinforced concrete tunnels show limits regarding large spans in the transverse direction. There was a lack of knowledge whether the steel-concrete-steel (SCS) sandwich tunnel can be a solution for tunnels with extreme large spans. Research was needed to understand the structural response of a large span SCS tunnel to the load...
master thesis 2016
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Van Lagen, G. (author)
A sunken ship load needs more and more to be taken into account in the design of an immersed tunnel. Such a load is often governing the design. The designer gets often a prescribed value (in kN/m2) from the client for a sunken ship load. The range in prescribed values show however a big scatter. There are also a lot of tunnels over which a lot...
master thesis 2016
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Weeda, T.R. (author)
The persistent increase of container vessel dimensions requires ports to adapt their wet infrastructure in order to compete with their competitors. However, in some cases waterway tunnels are expected to restrict the maximum depth. The Beneluxtunnel in Rotterdam is an example of such a tunnel. To allow more depth, the possibility of lowering...
master thesis 2015
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Bergsma, J.G. (author)
The thesis aims to find the changes in design and execution to immersed tunnels in subarctic regions. The Orlovsky Tunnel in St. Petersburg serves as a case study. The Orlovsky tunnel is a 1600 m tunnel in a rapid flowing river. the ice regime of the Neva River is characterized by frazil ice, which causes hanging ice jams and anchor ice....
master thesis 2013
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Joosten, D.A.W. (author)
With the introduction of the Eurocode, different formulas are used for shear tests in concrete structures than the previous Dutch standard.These formulas are often used in new building designs. If the result compared with the Dutch standard is either favorable or unfavorable, the design should be modified. It is interesting to research the...
master thesis 2011
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