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Bayraktaroglu, H. (author), Hicks, M.A. (author), Korff, M. (author), Galavi, Vahid (author)Experimental studies show that initial fabric and its evolution under different stress paths highly influence soil behaviour. Even though different sample preparation methods create different inherent anisotropies and cause different material responses, the same initial fabric structure under different stress paths also results in different...journal article 2023
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Prosperi, A. (author), Longo, M. (author), Korswagen, Paul A. (author), Korff, M. (author), Rots, J.G. (author)This study aims to investigate the damage response of unreinforced masonry (URM) façades resting on strip foundations and subjected to ground settlements via numerical models. The models depict the non-linear constitutive behaviour of both the masonry, via smeared cracking, and of the soil-foundation interaction, via nonlinear interface...journal article 2023
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Prosperi, A. (author), Korswagen, Paul A. (author), Korff, M. (author), Schipper, H.R. (author), Rots, J.G. (author)In the Netherlands, the potential damage to the building stock due to subsidence phenomena has recently received increased awareness. However, evaluating and predicting damage to buildings in subsiding areas is a complex task that requires associating the vulnerability of exposed structures with the intensity of the subsidence hazard....journal article 2023
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Bayraktaroglu, H. (author), Hicks, M.A. (author), Korff, M. (author)In this paper, a state-dependent semi-micromechanical framework for anisotropic sands is proposed. A simple constitutive model based on critical state theory and bounding surface (BS) plasticity is used to describe idealized micro-level soil behaviour, and a slip theory based multilaminate framework employed to create a link between the micro...conference paper 2023
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Prosperi, A. (author), Nicodemo, Gianfranco (author), Korff, M. (author), Peduto, Dario (author)This paper presents an integrated analysis based on the use of multi-source wide-area datasets consisting of hydro-mechanical properties of geomaterials, in-situ investigations/measurements (e.g. groundwater levels in wells) and innovative space-borne data (i.e. DInSAR techniques) to support numerical analyses aimed at assessing and predicting...conference paper 2022
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Duffy, K. (author), Gavin, Kenneth (author), de Lange, Dirk (author), Korff, M. (author)Stresses generated from pile installation are a critical component in understanding pile behaviour. These are known as residual stresses and in Delft, the Netherlands, the response of three driven precast piles founded in sand was measured using distributed fibre optic sensing as part of a series of full-scale static load tests. The...conference paper 2022
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Hemel, M. (author), Korff, M. (author), Peters, D.J. (author)The historic canal wall structures in many Northern European cities have been built as masonry walls on a timber deck founded on timber piles. For analysis of the resistance of those structures and assessment of their remaining service life, suitable and accurate calculation models are needed. Thereto an analytical method was developed for...journal article 2022
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Peduto, Dario (author), Prosperi, A. (author), Nicodemo, Gianfranco (author), Korff, M. (author)This study presents a novel framework in which numerical modelling contributes to the performance of district-scale, subsidence-induced damage assessment in cities where ground settlements affect entire quarters. Therein, the implementation of expeditious procedures offers geotechnical engineers the possibility of contributing beyond the...journal article 2022
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Korff, M. (author), Hemel, M. (author), Peters, D.J. (author)A quay wall directly next to a building, both dating from around 1870, collapsed along the Grimburgwal in Amsterdam, the Netherlands, on 1 September 2020. The historic quay wall consisted of a masonry wall, built of a timber deck supported by several rows of timber piles of about 12 m long. As over 200 km of such quays exists in Amsterdam and...journal article 2022
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Duffy, K. (author), Gavin, Kenneth (author), Askarinejad, A. (author), Korff, M. (author), de Lange, D.A. (author), Roubos, A.A. (author)Large areas of the Netherlands are dominated by deep, soft soil deposits, posing a challenge to engineers with respect to the design of axially loaded foundations. The design of these foundations is primarily based on methods which use cone penetration test (CPT) parameters, such as that outlined in the Dutch national standard NEN 9997-1. A...conference paper 2022
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Korff, M. (author), Hemel, M. (author), Esposito, R. (author)In dit rapport is via een forensic engineering aanpak een eerste analyse gegeven (rapid assessment, RA) van het bezwijken van de Grimburgwal (GBW) op 1 september 2020. Het doel van het onderzoek is om te achterhalen welke lessen zijn te leren van het bezwijken van de Grimburgwal voor de overige kades in Amsterdam. De volgende onderzoeksvragen...report 2021
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Reinders, K.J. (author), van Leijen, F.J. (author), Hanssen, R.F. (author), Korff, M. (author)This paper investigates the use of InSAR data during shield tunnel construction when short-term settlements occur within a few days. Additionally, the long-term settlement, which occur over several years, in the vicinity of these tunnels are evaluated with inSAR. The North-South Line in Amsterdam is used as a case study for this research. We...conference paper 2021
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de Wolf, W.J. (author), Korff, M. (author), van Seters, A. (author), van Dalen, J.H. (author)In the Observational method Ab Initio approach observational feedback is used to optimize a structural design to field conditions that are found to be uncertain in the design phase. As a deep excavation takes place, the supporting retaining wall deflections can be observed by inclinometers which serve as an extra source of information on the...conference paper 2021
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Reinders, K.J. (author), Hanssen, R.F. (author), van Leijen, F.J. (author), Korff, M. (author)In this work, we investigate if, when, and how satellite InSAR can be used for evaluating surface settlements that occur during shield tunnelling in soft soil areas. We evaluate the applicability of InSAR prior, during, and after tunnel construction. Special emphasis is placed on the influence of the InSAR phase ambiguities in relation to short...journal article 2021
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Venmans, Arjan A.M. (author), Op De Kelder, Martin (author), De Jong, Jarco (author), Korff, M. (author), Houtepen, Martijn (author)Amsterdam currently has a huge task of assessing and potentially upgrading its quay walls along the historic canals. Before replacement can take place, Amsterdam needs to determine the potential impact the replacement can have on the nearby buildings. The rate of vertical deformation of the adjacent buildings is used as indicator of potential...journal article 2020
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Costa, Ana Laura (author), Kok, Sien (author), Korff, M. (author)In the Netherlands, subsidence of peat and clay soils due to (artificial) lowering of the groundwater table and loading of soft soils is commonplace, causing extensive damage to exposed and vulnerable assets. Awareness of subsidence-related damage to buildings has recently increased in the Netherlands, particularly after reported damages due...journal article 2020
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Peduto, Dario (author), Korff, M. (author), Nicodemo, Gianfranco (author), Marchese, Antonio (author), Ferlisi, Settimio (author)The analysis and prediction of damage to buildings resting on highly compressible fine-grained “soft soils” containing (organic) clay and peat are key issues to be addressed for a proper management of subsidence-affected urban areas. Among the probabilistic approaches suggested in literature, those oriented to the generation of empirical...journal article 2019
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Van Der Linden, Toon I. (author), De Lange, Dirk A. (author), Korff, M. (author)The effect of a soft layer on the cone resistance of a sand layer has been studied extensively, but the same cannot be said for the case of multi-layered deposits with many (thin) alternating soil layers. For geotechnical analyses based on cone penetration test data it is difficult to estimate a representative value of the cone resistance...journal article 2018
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Korff, M. (author)Individuals and project-based organisations in the construction industry can learn in a (more) systematic way from case studies and the monitoring of underground construction works. Underground construction projects such as tunnels and excavations suffer as much or more from failure costs compared to other parts of the construction industry,...journal article 2017
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Kruiver, Pauline P. (author), van Dedem, Ewoud (author), Romijn, Remco (author), de Lange, Ger (author), Korff, M. (author), Stafleu, Jan (author), Gunnink, Jan L. (author), Rodriguez-Marek, Adrian (author), Bommer, Julian J. (author), van Elk, Jan (author), Doornhof, Dirk (author)A regional shear-wave velocity (V<sub>S</sub>) model has been developed for the Groningen gas field in the Netherlands as the basis for seismic microzonation of an area of more than 1000 km<sup>2</sup>. The V<sub>S</sub> model, extending to a depth of almost 1 km, is an essential input to the modelling of hazard and risk due to induced...journal article 2017
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