This seminar, featuring Oliver Hoopes (Shannon & Wilson), will focus on the design and performance of the Lost Creek Thermal Improvements project, which addressed slope movement and landslide risk at a site along the Trans-Alaska Pipeline System. The pipeline at Lost Creek traverses a north facing slope with discontinuous, warm permafrost underlain by a frozen peat bog. This peat layer contains a shear zone that moves as the permafrost degrades, causing the pipeline’s vertical support members to tilt, which required expensive maintenance. The seminar will describe how the group designed and installed a system of vertical passive thermosyphons (FSHPs) and woodchip surface insulation to cool the permafrost and mitigate these risks. The seminar will highlight the project's use of 3D finite element thermal modeling to optimize the design of the FSHPs and insulation layout. Oliver will also present the performance of the system to date and how that compares to the model predictions.
The webinar will be moderated, and will be recorded and uploaded on the USPA website.
The USPA Technical Training Webinar Series webinars are offered on Zoom. Each webinar is one hour long, including a 50-minute lecture and 10-minute Q&A. Certificate of Professional Development Hours (PDH) will be provided to participants who request it after each webinar. The webinars are free for USPA members and all students. For non-USPA members who are not students, the registration fee is $20 for each webinar.
For more information and to register, go to:
Event webpage