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INCORPORATING GEOTECHNICAL INVESTIGATIONS TO SUPPORT RECLAMATION ON RESOURCE PROJECTS Session: Contamined Sites and Remediation / Sités contaminés et réhabilitation Victoria Stevens, Stantec Consulting Ltd. (Canada) Integration of geotechnical drill logs and drill data into terrain and soils mapping provides a powerful tool in reclamation planning for industrial development. For large resource projects such as pipelines and mines, reclamation planning commonly includes baseline soil and terrain mapping to inform reclamation aspects such as soil salvage and terrain stability planning, and geotechnical drill logs provide detailed information on soil depths and assist refinement of terrain mapping in terms of depth to bedrock and surficial materials. Geotechnical drill logs are imported into geographic information systems (GIS) and cross-referenced to terrain maps. Surficial material depths are modelled across the project development area and soil salvage volumes are calculated using drill log depths. Quantifying permafrost and accurate hazard mapping in areas of permafrost can rely heavily on both fieldwork and geotechnical drill logs to identify areas of potential permafrost geohazards and their potential impact on resource infrastructure and reclamation. Examples of project work that uses geotechnical logs for data and model verification are presented for areas of complex geohazards, permafrost hazards and deep organic soils.
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