Opendata, web and dolomites


Precipitation triggered rock dynamics: the missing mesoscopic link

Total Cost €


EC-Contrib. €






 PRD-Trigger project word cloud

Explore the words cloud of the PRD-Trigger project. It provides you a very rough idea of what is the project "PRD-Trigger" about.

unclear    deterioration    material    identification    reactions    bayesian    virtual    ray    subsurface    simulator    insights    transport    correlations    micro    coastal    image    stones    network    durability    natural    building    alternative    healing    ing    occurs    experimental    intensifies    geoengineering    contrary    dissolution    cracking    tomographic    triggered    pore    meso    coupled    dynamics    governing    salts    answer    severe    4d    crack    geothermal    unified    climate    underground    respective    perturbations    core    protection    meet    precipitation    framework    rocks    actual    rock    constituents    ways    description    cyclic    promotion    cycles    ultimately    demonstrated    model    combined    outcome    inside    toolset    leads    sources    pores    comprising    trigger    dynamic    pinpoint    positive    dataset    lies    deformation    porous    combining    erosion    acting    geometry    flow    rate    weathering    landscapes    heritage    stresses    environment    reservoir    brines    constitutive    hierarchization    experiments    cultural    energy   

Project "PRD-Trigger" data sheet

The following table provides information about the project.


Organization address
address: RUE MICHEL ANGE 3
city: PARIS
postcode: 75794

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Total cost 1˙491˙330 €
 EC max contribution 1˙491˙330 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2019-STG
 Funding Scheme ERC-STG
 Starting year 2020
 Duration (year-month-day) from 2020-02-01   to  2025-01-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

Climate change leads to increasing weathering cycles on landscapes and the built environment. Promotion of alternative energy sources such as geothermal energy intensifies cyclic perturbations of the underground environment. Both lead to precipitation-dissolution cycles of salts, natural constituents of brines present inside porous rock. When precipitation occurs inside the pores, stresses build up which eventually crack the material. This might be a positive outcome, e.g., increasing the production rate of a geothermal reservoir, or on the contrary, be the cause of severe deterioration of natural building stones and coastal erosion.

What is the actual trigger for the dynamic response of a rock when precipitation occurs, and can we ultimately control this trigger? The answer lies at the meso-scale, i.e. the scale of the pore network, where precipitation-dissolution reactions, geometry changes and flow and transport properties changes meet. These reactions and changes are strongly coupled, but their respective importance for the resulting rock dynamics is unclear. A combined experimental-modelling approach will be developed, comprising: (1) 4D X-ray micro-tomographic experiments providing new insights in the correlations between transport-precipitation-deformation processes inside rock; (2) a virtual simulator for precipitation-triggered rock dynamics based on a unified phase-field description; (3) a model-based image analysis approach, combining the simulator and the experimental dataset through a Bayesian framework for properties and constitutive model identification and hierarchization. This hierarchization will pinpoint the governing trigger(s).

By acting on the trigger, controlled precipitation-induced cracking and crack healing will be demonstrated on core-scale rocks. The new experimental-modelling toolset will open new ways for improving building stones’ durability, cultural heritage and coastal protection, and geoengineering of the subsurface.

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The information about "PRD-TRIGGER" are provided by the European Opendata Portal: CORDIS opendata.

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