Gestion des géorisques

Helping to bring understanding of hazards & risks into all levels of the decision-making process

BGC helps clients reduce geohazard risk through approaches that can be readily integrated into planning, community and development services, and emergency management.

Identification des géorisques

Geohazards are often unrecognized until disaster strikes. BGC recognizes, classifies, and quantifies geohazards before a catastrophic event occurs. We use a multidisciplinary skillset that includes:

  • Identification des signes de géorisques sur le terrain
  • Analyses de photographies aériennes, d’images satellites prises dans le spectre visible, de radars interférométriques à synthèse d’ouverture (InSAR) et de lidars (détection et télémétrie par la lumière)
  • La cartographie stratigraphique dans les tranchées d’essai et les expositions naturelles.
Caractérisation de site

BGC routinely carries out site investigation programs to characterize hazard sites. This work includes:

  • Detailed field and aerial photograph mapping
  • Test pitting and stratigraphic analysis
  • Geotechnical drilling, testing, and sampling
  • Ground motion monitoring
  • Laboratory testing
  • Installation of borehole instrumentation.
Instrumentation et surveillance

For individual sites, BGC selects and installs a variety of instrumentation types including rain gauges, piezometers, slope inclinometers, and extensometers (crackmeters). We leverage River Network Tools™ to monitor streamflow and precipitation and operate hazard monitoring and warning systems. 

Cartographie des risques

BGC develops local- to national-scale hazard maps for subject matter specialists and authorities such as regulators and the public. Hazard maps provide answers to questions such as: 

  • Where is the hazard area (extent)?
  • What is the chance that the hazard will occur (likelihood, frequency)?   
  • How big and destructive will it be (magnitude, intensity)?  
Évaluation des risques

Risk assessments combine assessments of hazards and their consequences such as loss of life, economic losses, or environmental damage. With a clear understanding of risk, we can create site development plans, infrastructure design, and measures to reduce risk to tolerable levels.   

On a regional scale, BGC develops maps to characterize geohazards and diverse assets and prioritize large areas based on relative risk. For specific sites, risk assessments address questions such as:  

  • What is the likelihood of losses to persons, buildings, or infrastructure?  
  • Is the risk intolerable (should we take steps to reduce risk)?  
  • Comment communiquer les risques avec clarté aux spécialistes, aux organes décisionnaires et au public?  
Contrôle des risques

BGC helps clients both reduce geohazard risk and understand the level of risk reduction that has been achieved. We develop conceptual risk reduction options, facilitate stakeholder engagement and option evaluation, prepare detailed designs, and provide engineering services during procurement and construction. Options typically available to reduce geohazard risk include:  

  • Une occupation des sols pensée pour éviter les géorisques
  • Des systèmes d’avertissement basés sur des seuils de surveillance
  • La stabilisation du terrain pour réduire la survenance des géorisques
  • La gestion des eaux de surface et des eaux souterraines
  • Le détournement ou l’acheminement des écoulements loin des éléments à risque 
  • Les barrages filtrants ou les bassins de rétention pour arrêter les roches, sédiments ou débris.
Système de gestion des géorisques Cambio

BGC a mis au point le Système de gestion des géorisques Cambio to support risk-informed decision-making by government and major industry. Cambio users include:

  • pipeline, railway, and energy utility operators
  • transportation authorities
  • mining operators and governments tasked with community planning, regulation, and emergency management.

For major infrastructure, Cambio allows users to proactively plan inspections, monitor hazards in real time, and implement risk control measures. For communities, Cambio can help identify the location and characteristics of geohazards, determine population and assets at risk, and establish transparent approaches to prioritize, plan and regulate land use and development.

River Network Tools

BGC’s River Network Tools (RNT) is a powerful and versatile web-based application for analyzing hydrotechnical geohazards associated with rivers and streams. Floods and channel-forming processes can pose risks, to linear infrastructure such as pipelines, railways and highways. Quantifying the potential risks to both existing and proposed infrastructure is essential, yet the expansive geographic regions traversed can result in a prohibitive amount of data requiring extensive man-hours to effectively gather and analyze. In response, BGC developed RNT as a set of modules that integrate publicly available hydrometric data with GIS-based analytical tools to help manage hazards and risks at watercourse crossings. The RNT has proven to be invaluable for a variety of applications, including geohazard and flood hazard management programs.  

The cycle of managing hazard & risk

BGC’s experts help clients manage landslide, flood, permafrost, seismic, snow avalanche, and ground deformation hazard and risks at scales ranging from single sites to thousands of hazards impacting global asset portfolios. We analyse, evaluate, and control risk through both structural and non-structural approaches to operations planning, policy, and regulation. 

Client risk management

BGC looks at the full cycle of safety and economic risk management for residential and commercial buildings, transportation and utility infrastructure, and geotechnical assets for the management of water and earth-related risks. We help clients make sense of risk, implement controls where needed most, and understand the level of risk reduction that has been achieved.

Projets connexes

Personnes Ressources

Michael Porter

Michael Porter

Principal Geological Engineer

Sam Fougère

Sam Fougère

Principal Engineering Geologist, Energy Team Lead

Kris Holm

Kris Holm

Principal Geoscientist, Communities Team Lead

Alex Strouth

Alex Strouth

Principal Geological Engineer

Carie-Ann Lau

Carie-Ann Lau

Senior Geoscientist

Emily Mark

Emily Mark

Senior Geological Engineer

Marc-André Brideau

Marc-André Brideau

Senior Engineering Geologist

Sarah Kimball

Sarah Kimball

Senior Geological Engineer, Health and Safety Lead

Elisa Scordo

Elisa Scordo

Senior Hydrologist, Surface Water Team Lead

Lauren Hutchinson

Lauren Hutchinson

Senior Geotechnical Engineer, R&D Lead

Matthias Jakob

Dr. Matthias Jakob, P.Geo, P.L.Eng, was an internationally recognized specialist on the subject of geohazard and risk assessments. At BGC, we were fortunate to have Matthias as a colleague, mentor, and expert for 19 years before his untimely passing in 2022. For more information and key contacts in the areas of practice Matthias worked in, please use the links below: 

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