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Rapport Année : 2022

Remote sensing, geophysics and imaging technology for monitoring and characterization of geostructures and geo-materials

Zheng Li
  • Fonction : Auteur
  • PersonId : 1148727
Luc Thorel
Alain Neel
  • Fonction : Auteur
  • PersonId : 1148896
Matthieu Blanc
  • Fonction : Auteur
  • PersonId : 1149035
Thierry Dubreucq
  • Fonction : Auteur
  • PersonId : 1148894

Résumé

Climate change, extreme events and aging are causing and/or accelerating numerous geotechnical challenges such as geohazards and deformation/settlement of buildings and infrastructure. In addition, increasing demand and pressure on the built environment stimulate the need for innovative methods/equipment for characterization of ground condition and detection of objects, utilities, defects which can interfere with construction/maintenance of infrastructure. Remote sensing, geophysical methods and imaging technologies offer great potential for innovative and cost-effective approaches for monitoring of critical infrastructure, characterization of sub-surface spaces and detection of ultilities, objects and defects. Their main advantages are that they are non-intrusive / non-destructive, fast and have the possibility to cover large areas and challenging terrain; something that is costly or impossible if using traditional methods. Remote sensing, geophysical techniques and imaging technology have been utilised in physical modelling at different scales, from small laboratory studies to large scale field testing. This report provides overviews of remote sensing, geophysical methods and image analyses which are suitable for monitoring infrastructure or ground characterization or detection problem. This report focuses on technologies and methods that have been utilized by partners in the GEOLAB consortium. For each method, a brief overview of key principles, advantages / disadvantages and / or applicability is provided, followed by examples of application of the method in real projects delivered by GEOLAB consortium partners. Many GEOLAB partners had or have ongoing research and development activities which utilize one or more remote sensing, geophysical methods or imaging technology in innovative physical modelling, small laboratory experiment, medium lab-field test or large/full-scale field testing. Most of the applied technologies have reached TRL 6-7, thus they have been or are applicable in real operational environment. Some of the example applications presented in this report are performed in practical industry projects (e.g. road construction, dam monitoring). There is, however, a great need to further develop modelling techniques in the laboratory and in the field, as well as research into data processing methods to optimize their applicability in geo-engineering challenges. In addition, there is a need for more real-world cases demonstrating the advantages and cost-effectiveness of these methods, so as to encourage their usage in practice. There is great potential for collaborative research amongst the GEOLAB partners and Transnational Access user groups, hence the purpose of this report is to provide an overview of current remote sensing, geophysical methods or imaging analysis capabilities in physical modelling, laboratory tests or field tests within the GEOLAB consortium, in order to promote collaboration and innovation.

Domaines

Géotechnique
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Dates et versions

hal-04460618 , version 1 (19-02-2024)

Identifiants

  • HAL Id : hal-04460618 , version 1

Citer

Thi Minh Hue Le, Jean-Sébastien l'Heureux, Victor Hopman, Georgia Giardina, Malte Vöge, et al.. Remote sensing, geophysics and imaging technology for monitoring and characterization of geostructures and geo-materials. ngi. 2022, pp.60. ⟨hal-04460618⟩
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