H.J. Lengkeek

H.J. Lengkeek
Delft University of Technology | TU · Department of Geoscience and Engineering

Doctor of Engineering

About

37
Publications
18,645
Reads
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72
Citations
Citations since 2017
16 Research Items
45 Citations
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2017201820192020202120222023051015
2017201820192020202120222023051015
Additional affiliations
May 2017 - May 2021
Delft University of Technology
Position
  • PhD All-Risk program: Performance based design of stability walls in dikes
Education
September 1991 - January 1997
Delft University of Technology
Field of study
  • Civil Engineering

Publications

Publications (37)
Article
Full-text available
The modelling of piles in a 2D finite element model brings limitations because pile-soil interaction is a strongly 3D phenomenon. Pile-soil interaction is difficult to model and traditional methods in which pile rows are modelled either as plates or as node-to-node anchors have clear drawbacks. The embedded pile row has been developed to model a ro...
Article
Full-text available
This paper presents the findings on the behaviour of organic soft soil (clay and peat) using a variety of state-of-the-art laboratory tests. Moreover it addresses the importance of critical evaluation of the each test and the parameter determination. The tests are performed within a research program on behalf of research foundation “STOWA” to verif...
Article
Full-text available
This article discusses the estimation of stiffness parameters of silica sands from CPT cone resistance for the use of Plaxis constitutive models. In the first part of this article correlation’s are presented and formulae are proposed to estimate the stiffness for any combination of effective stress and cone resistance (qc), which can be very helpfu...
Conference Paper
Full-text available
Within the framework of the Dutch SBW project "Strength and Loads on Dikes" extensive soil investigations, analysis, numerical simulation and stability calculations have been performed. The aim of the project is to investigate the design method for a dike slope failure in a high water situation. Various locations in The Netherlands have been select...
Conference Paper
Full-text available
Selecting an appropriate soil constitutive model and determining the corresponding model parameters for numerical analysis are considered most challenging in geotechnical engineering. While many empirical relationships have been proposed to derive soil parameters from in situ test results, there is no clear procedure on how to derive model paramete...
Conference Paper
Full-text available
Levees in the Netherlands have traditionally been constructed from soil. Climate change and land subsidence require heightening and/or reinforcing these existing levees. Traditional reinforcements demand additional space, which in some cases conflicts with existing buildings. Applying sheet pile walls in levees allows for strengthening while minimi...
Article
Full-text available
I n Nederland werken Rijk en waterschappen in-tensief samen om via o.a. dijkversterkingen het land te beschermen tegen overstromingen. Binnen het huidige dijkversterkingsprogramma betreft het aantal kilometers te versterken dijk vanwege onvoldoende dijkstabiliteit 287 km, waarvan aan 69.5 km een hoge urgentie is toegekend en opge-nomen in de progra...
Conference Paper
Full-text available
A reliable estimate of the saturated soil weight from CPT analysis can be useful for various purposes. An often used relation that gives a reasonable first approximation is presented by Robertson & Cabal (2010). In The Netherlands very soft and highly organic soils are omnipresent and these types of soil are absent in the aforementioned relation. I...
Conference Paper
Full-text available
Liquefaction potential of the subsoil is often assessed by performing an automated CPT based liquefaction triggering procedure. Due to a bias in the measured cone penetration resistance erroneous prediction of the liquefaction potential can be expected at the transition of soft, non-liquefiable and stiffer, liquefiable layers. This too is the case...
Article
Full-text available
Liquefaction induced by earthquakes has shown to have potential devastating influence on seismic performance of anchored quay walls. Therefore, measures to mitigate liquefaction are commonly part of the design of quay walls in seismically active regions. Such mitigation measures are costly. Moreover, these measures are difficult to implement for ex...
Conference Paper
Full-text available
The effects of soil-structure interaction in seismic areas are proven to have significant influence on the response of the superstructure during an earthquake. The need of taking into account these effects is of specific importance for existing structures that require detailed insight in order to predict failure mechanisms, assess seismic capacity...
Conference Paper
Full-text available
Accurate prediction of the onset of liquefaction and the consequential soil behaviour in terms of strength and stiffness is in general a difficult topic. In particular when high static shear stresses are involved, as is the case near the edges of a shallow founded large storage tank, reliable results obtained from coupled finite element methods (FE...
Conference Paper
Full-text available
A study to compare the performance of several time domain non-linear soil models for two simple single-layered 1D profiles of sand and clay is performed. Typical properties and parameters of sand and clay are selected along with the small strain shear modulus. The normalized shear modulus reduction and damping curves are selected based on Seed and...
Conference Paper
Full-text available
The importance of performance based design approaches and soil structure interaction in seismic design of structures are internationally recognized. Seismic Soil-Structure Interaction (SSI) is a key factor that has to be considered in design, particularly for retaining structures and structures with deep foundations, such as jetties. However, seism...
Conference Paper
Full-text available
Huisman Equipment B.V. has developed an Arctic drilling unit, which has three main operating modes. The 'Huisman Arctic Drilling Unit' can operate in open water as a conventional semi-submersible unit and also in ice conditions afloat. In addition to floating operating modes, the unit is foreseen to be placed as Gravity-Based-Structure (GBS) in off...
Conference Paper
Full-text available
This paper discusses a typical soil-structure interaction analysis related to a quay wall design. The quay wall consists of a deck on piles combined with a closed frontwall. The quay wall has been verified for both operational and seismic load conditions. The earthquake conditions have been verified both pseudo-statically and dynamically. The analy...
Article
Full-text available
The importance of soil structure interaction in seismic design of structures is recognized by the seismic design community, which is very much moving towards performance based design principles. Particularly for structures with deep foundations in soft soil conditions, soil-structure interaction is a key factor that has to be considered in design....
Conference Paper
Full-text available
Within the framework of the project Innovations on Stability Improvement enabling Dike Elevations (INSIDE) a new concept 'dike soil nailing' is developed, which stands for reinforcing river dikes (levees) by soil nailing. This way dike reinforcement can be achieved without widening the dike. In the present paper a feasibility study for the applicat...
Article
Full-text available
Kunstmatige eilanden in de Kaspische zee onder ijsbelasting Samenvatting ir. A. Lengkeek Witteveen+Bos In het ondiepe water van de Kaspische Zee ontstaan in de winter door opwaaiing en waterstroming enorme bewegende ijsmassa's. Het bewegende ijs vormt een serieuze bedreiging voor de constructies die nodig zijn voor de exploratie en productie van he...
Article
Full-text available
Inleiding In Nederland hebben wij een geschiedenis van leven met het water. Er is in de afgelopen decennia veel ervaring en kennis opgedaan. De dijken, zowel voor de kust als de rivieren, moeten ons be-schermen tegen het hoge water zodat wij veilig kunnen leven. De overheid ziet hier op toe en daarom worden de dijken regelmatig geïnspecteerd en get...
Article
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Conference Paper
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Several offshore platforms and artificial islands will be constructed in the Caspian Sea for the exploration and production of oil. In some cases, vulnerable structures can be protected against severe ice loading using rock mound barriers. These barriers will be constructed in shallow water on a soft sediment layer. This paper discusses the assessm...
Article
Full-text available
Praktijkproef openstaande diepwandsleuven t.b.v. nieuwe A'damse metrolijn ir. J.C.W.M. de Wit, ir. H.J. Lengkeek en ing. M. de Kant Adviesbureau Noord/Zuidlijn , Amsterdam Samenvatting: Volgens de huidige planning zal eind van het volgende jaar worden begonnen met de uitvoe-ring van de diepe stations voor de nieuwe metrolijn in Amsterdam. Als onder...
Conference Paper
Full-text available
During the excavation and de-watering of the entrance shaft of the Sophia railway tunnel were carried out a number of measurements in order to determine the vertical deformations of the deep laying geological strata. This paper describes the on-site measurement results and looks into the predictions outcome. De difference between the measurements a...
Article
Full-text available
Het boren van tunnels is een 'oude bekende' bouwmethodiek. In het buitenland is hier al veel ervaring mee opgedaan. Het grote voordeel van het boren is de geringe verstoring tijdens de bouwfase. Tot op heden is deze bouwmethodiek alleen toegepast in stevige grondsoorten, zoals rots en harde klei en is er geen ervaring opgedaan met het boren in slap...

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Projects

Projects (2)
Project
Research into different aspects (i.e. reliability, engineering, governance, law, ecology) of the new risk-based safety standards for flood protection in the Netherlands. Goal is to support the Dutch Flood Protection Program with applied research that can improve the efficiency and quality of the ~1600 kilometers of dike reinforcement in the coming decades.