Barrier Management
Risk assessment management for the world’s largest underground frozen barrier
Kajima Corporation of Tokyo, Japan contracted with Geocomp to provide engineering services on the construction and evaluation of an “ice wall” groundwater barrier around the Fukushima Nuclear Power Plant. Geocomp subcontracted with Moretrench American Corporation, North America’s largest ground freezing contractor, to assist with their construction experience.
Geocomp and Moretrench provided Kajima with assessments of comparable ground freezing experiences from around the world to help share technological achievements to enhance the design, construction, and performance of the Fukushima Ice Wall. In addition, they assisted in the evaluation of the design plans, construction quality assurance, and performance testing. Artificial ground freezing is the process of converting the subsurface pore water to ice to produce a strong, water-tight barrier.