ELGIP vision on reduction of geotechnical uncertainties for infrastructure

J. Breedeveld, M. Woning, Geotechniek Special ICSMGE, september 2017, pagina 3

The subsoil plays a critical role in the complete life cycle of transport infrastructure. However, the natural formation and (sub)base materials that support the actual surface or structure are often very much overlooked as an important part of the infrastructure system, with occasionally disastrous consequences. This article summarizes the ELGIP vision on future transport infrastructure which aims at highly optimized, risk management-driven geotechnical (re)design, construction, maintenance and operation. Volledige artikel

Added value of advanced methods for seismic verification of existing vertical cylindrical liquid storage tanks and their foundations

F. Besseling, M. Versluis, A. Bougioukos, Geotechniek nr. 4, Special ICSMGE, september 2017, pagina 8

Designs of new to be built liquid storage tanks are often easily adjusted at some specific aspects in order to increase seismic resistance. Typically, simplified design codes that cover these important structural aspects are used for design. More advanced verification/design analysis specifically have significant added value for existing storage tanks not designed to resist seismic loads or for design optimizations in general. This paper focuses on these advanced seismic verification methods and relates them to the behaviour of tanks under seismic response and relevant failure mechanisms. Volledige artikel

Material Point Method and Applications in Geotechnical Engineering

A. Rohe, M. Martinelli, Geotechniek Special ICSMGE, september 2017, pagina 16

The concept of the material point method (MPM) is briefly introduced for the numerical modelling of large deformations and soil-water-structure interaction for applications in geotechnical and hydraulic engineering. The formulation of MPM for a fully-coupled two-phase porous material in con-tact and interaction with free surface water is used. The concept of multiple sets of material points is introduced which enables modelling of free surface water, groundwater flow, liquefaction and erosion problems. Volledige artikel

New Large Diameter Sampler for soft soils

C. Zwanenburg, S. Luijendijk, Geotechniek Special ICSMGE, september 2017, pagina 20

A new large diameter sampler, DLDS, has been developed and is operable since 2017. This sampler can retrieve undisturbed samples with 0.4m in diameter and 0.5 or 1.0m in height. The large sampler has two purposes. First it facilitates laboratory testing on large volumes. Secondly the sampler can be used to retrieve high quality samples in soft, organic clay and peat for conventional laboratory testing as an alternative for block sampling. In establishing the quality of the samples a comparison is made to samples retrieved with the well-known Sherbrooke sampler. Volledige artikel