One of the key challenges in Delta Technology is related to possibilities of building on and with soft material. Soft materials (e.g. from dredged material and mine tailings) can be reused to form robust water defences enclosure dams and for land building. The material can be used to combat settlement in Sustainable Delta Cities as a cost-effective material for flood defences and as the basis for nature-based land reclamations like Marker Wadden. As such Bouwen met Slib"" has been identified as an important innovation to strengthen the international position of Dutch engineering companies. This project will deliver a new version of the numerical tool Delft3D to improve prediction of geometry and material properties distribution in fine sediments and disposal site deposits."""""

Sediment waste of mine processes (tailings) as well as dredged sediments are deposited in dedicated deposits or beneficially re-utilized to build new lands (e.g. Marker Wadden) to improve resilience of flood defences or enhance habitat restoration. The ability to improve the prediction capabilities of the sediment deposition dynamics as well as the characterisitcs and properties of the resulting deposits (e.g. distribution of sand and mud strength total settlement and time scale) is critical to reduce cost and risk of these activities. Current knowledge and predictive tool is nowadays limited. This project aims to contribute to close this key knowledge and tool gap.

1) Data Collection and Analysis. Most of the data will be provided by COSIA. This will be integrated with literature and Deltares data. 2) Optimization of the current model in 2DV. This includes: a) comprehensive rheological model assessment (including literature and knowledge inventorization) b) implementation of the new relavant theory in Delft3D-1D c) Implementation and improvement of Delft3D-2DV d) upgrading Delft3D-slurry to main stream Delft3D 3) Verification of the new model against COSIA data. 4) Reporting model delivery and preparation of a publication

The behaviour of soft sediments and slurries in depots and land reclamations is surrounded by uncertainties. The availablility of new monitoring data and measurements will allow a major advance in our understanding of this behaviour and in the ability to model and predict its future properties. This project will begin from state-of-the-art knowledge in this field. The available knowledge of rheology and sand settling processes will be further developed and included in the model based on the newly available data. The resulting model will be the single model world-wide with 2D (potentially 3D) prediction capability of these processes.

Project results in terms of software and documentation will be made available via the Deltares Open Source Software site:
http://oss.deltares.nl/web/delft3d

The theory developed will be part of the Master Thesis lectures at the Technical Delft University of the PI of the project (Dr. Arno Talmon). This material will also be disseminated by Deltares at short courses.

Project results will be presented at conferences (e.g. Delft Software Days, http://www.dsd-int.nl/)

Alle partijen krijgen alle resultaten van het Project ter beschikking. De resultaten van de samenwerking kunnen breed verspreid worden. Partijen kunnen over deze resultaten vrijelijk publiceren. De resultaten zullen volledig openbaar beschikbaar zijn, met uitzondering van ter beschikking gestelde achtergrondkennis.

De informatie over dit project wordt kenbaar gemaakt via de website van de TKI Deltatechnologie (projectbeschrijving) en de projectwiki van Deltares (projectvoortgang en resultaten).

Na de datum waarop deze Overeenkomst in werking is getreden, maar uiterlijk tot een jaar voor de beoogde datum waarop het Project zal zijn voltooid, kunnen ondernemers en/of onderzoeksinstellingen, die op het terrein van het relevante subsidieprogramma van het TKI werkzaam zijn alsnog als Partij toetreden. Een later toetredende Partij zal een nader overeen te komen bijdrage in kind en/of in cash moeten leveren die in redelijke verhouding staat tot zijn relatief aandeel in het Project na toetreding. De overige Partijen ontvangen vervolgens naar rato een terugbetaling en/ of gedeeltelijke vrijstellingen van hun nog te leveren bijdrage in kind, voor zover niet besloten wordt de bijdrage van de later toetredende Partij aan het projectbudget toe te voegen.