The East Side Combined Sewer Outflow (CSO) Tunnel Project located in Portland, Oregon involved providing a ground freezing system to assist in the hand-mining of a tunnel between the existing Confluent Shaft and the new Port Center Shaft.
Read MoreBoston Central Artery Tunnel
Ground freezing enabled the jacking of three massive tunnels just beneath seven active Amtrak lines serving Boston’s South Station and the financial district.
Read More2nd Avenue Subway Project
Ground freezing was selected to provide ground stabilization and water cut-off for the 2nd Avenue Subway expansion project. The use of ground freezing permitted safe mining operations with the TBM.
Read MoreFukushima’s Ice Wall
Listen to the CBC Radio’s interview with Joe Sopko about ground freezing as it applies to containing groundwater surrounding the Fukushima nuclear plant…
Read MoreGround freezing Fukushima
We gathered together several of the articles covering Ground freezing as a proposed solution to contain contaminated groundwater at Japan’s damaged Fukushima Nuclear Power Plant and posted links to our Facebook page
Read MoreLargest Frozen Ground Excavation in North America For Excavation of Crown Pillar
Following the success of other ground freezing projects in the area, an ambitious scenario was proposed which would result in the largest ever frozen ground excavation in North America. The field and laboratory investigations are described as well as the engineering analyses used in the design of the 61-meter diameter, 35-meter deep frozen earth cofferdam. Read More
