IMarEST Webinar – Case Studies of Geotechnical Challenges in Marine Geotechnical Engineering

6 November 2025 | 16:00-17:00 GMT / 10:00-11:00 CST | Online

Typical challenges in offshore geotechnical engineering include geohazards (such as seismic activity, liquefaction gas hydrate, shallow gas, faults), complex soil conditions and harsh environmental loading conditions etc. In this presentation, several case examples of marine consultancy projects with geotechnical challenges will be provided, which include desktop studies of well casing integrity due to gas hydrate dissociation, spudcan-suction bucket interaction geotechnical performance evaluation, offshore foundation design in sediments with existence of shallow gas and effects of aseismic faults intersecting offshore production well etc. Details of the analysis methodology and procedure, potential mitigation measurements and study recommendations for these challenging case studies will be presented.

Speaker:

Dr Xiaoyan Long Ph.D., P.E., BC.GE, F. ASCE – Senior Principal Engineer , Fugro

Xiaoyan is the senior principal engineer and technical authority for Fugro USA, Inc. in Houston, TX. She has over 18 years’ consultancy and management experience specializing in marine site characterization, foundation design, well geotechnical and interdisciplinary geo-hazard assessment. Xiaoyan obtained her master’s degree from Tongji university in China and the Doctor of Philosophy (PhD) degree from Texas A& M university in College Station, TX. She is a registered professional engineer in TX and OH states and a board-certified geotechnical engineer by Academy of Geo-Professionals. Xiaoyan has published over 35 technical papers and is serving as the Honorary Secretary of the SUT-US executive branch committee. She is one of the finalists for Ground Engineering Magazine “2025 Inspiring Women in Construction& Engineering Awards” in the category of “Technical Excellence”. She is a member of SUT OSIG (Offshore Site Investigation Geotechnics) technical committee and ISSMGE (International Society for Soil Mechanics and Geotechnical Engineering) TC 209 Offshore Geotechnics technical committee.