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A virtual geomechanics laboratory for clay

Project description

Understanding natural clay behaviour for landslide mitigation

Natural or quick clays are natural soils that can change from solid to liquid due to small perturbations in their environment, and they are responsible for quick clay landslides. Funded by the Marie Skłodowska-Curie Actions programme, the CLAYLAB project will explore the complex behaviour of natural sensitive clays to develop innovative ground improvement ideas for landslide prevention. The project will create a virtual geomechanics laboratory; the idea is to probe clay behaviour starting at the materials science scale by incorporating clay-specific physics in discrete element modelling based on experimental image and force data that spans nm – m. CLAYLAB will allow us, for the first time, to understand phenomena such as quick clay landslides and find solutions to mitigate them.

Objective

Natural clays are fascinating materials, especially so-called quick clays, a major geohazard, which are natural soils that can have a sudden irreversible phase change from solid to liquid due to small perturbations in environmental conditions. The aim of the project is to gain understanding of the complex behaviour of natural sensitive clays, including quick clays, by creating a virtual CLAYLAB. CLAYLAB is a virtual geomechanics laboratory for probing the behavior of clays starting at the materials science scale by incorporating clay specific physics in Discrete Element Modelling (DEM), based on experimental image and force data that spans nm - m. The novel multi-scale experimental data available at the host institution is combined with micro-mechanical computational and theoretical methods such as adding Level Sets for shape to DEM with the expertise of the ER. By taking advantage of cutting-edge imaging techniques, such as X-ray Computed Tomography, where computer-based mathematical schemes such as level sets are applied to generate a unique “digital twin” for each particle. Furthermore, complementary data is gathered on the physico-chemical processes using a combination of X-ray scattering and Atomic Force Microscopy. Ultimately, a virtual CLAYLAB will be created, so that the digital samples match the physical behavior of their real counterparts at the engineering scale. CLAYLAB will enable us, for a first time, to understand the phenomena such as quick clay landslides, and enable us to probe into the materials response beyond what is possible when using laboratory techniques on their own. This understanding ultimately offers a platform to develop novel ground improvement ideas for landslide mitigation. Finally, CLAYLAB will help to ameliorate time consuming as well as expensive real laboratory testing procedures for probing soil response for engineering applications.

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Programme(s)

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Topic(s)

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Funding Scheme

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MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

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Call for proposal

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(opens in new window) H2020-MSCA-IF-2020

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Coordinator

CHALMERS TEKNISKA HOGSKOLA AB
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 203 852,16
Address
-
412 96 GOTEBORG
Sweden

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Region
Södra Sverige Västsverige Västra Götalands län
Activity type
Higher or Secondary Education Establishments
Links
Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

€ 203 852,16
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