Conducted a comprehensive geotechnical evaluation of the proposed road alignment to connect the Native Village of Akutan with the new small boat harbor (currently under construction at the head of Akutan Bay). The remoteness and steep topography of Akutan Island required NGE-TFT to employ less traditional exploration methods including ground-penetrating radar and portable hand augering to evaluate bedrock depths and overburden thicknesses. Subsurface and material information obtained by NGE-TFT, as well as past experiences with construction practices on the island, helped to guide road design and result in the overall shortening of the road alignment, saving the project considerable construction cost.
NGE-TFT conducted a geotechnical evaluation of the site to characterize subsurface conditions (which included ice-rich permafrost) and develop foundation recommendations for the proposed structure. As a part of the foundation design effort, NGE-TFT conducted a transient thermal analysis to model the effect that the proposed building could have on the existing permafrost and to evaluate the potential effectiveness of proposed foundation refrigeration systems and insulation in preserving the existing permafrost beneath and adjacent to the proposed structure.
NGE-TFT conducted a geotechnical evaluation of two separate sites to characterize subsurface conditions (which included marginal/warm permafrost) and develop foundation recommendations for the proposed structure. As a part of the foundation design effort, NGE-TFT conducted thermal monitoring at the selected site to evaluate the condition of the permafrost.