During tunnel mining operations under the Fraser River in Vancouver, the Tunnel Boring Machine (TBM) was damaged and required immediate repair. Liquid nitrogen was used to freeze the soil at the cutter head so repairs could be completed.
Read MoreSopko to receive Civil Engineering Distinguished Alumni Award
Joseph A. Sopko, Ph.D., P.E., Director of Ground Freezing for Moretrench will receive the Distinguished Alumni Award in Civil Engineering from Michigan State University…
Read MoreSistema de Potabilización Área Norte – Access Shaft #3
After groundfreezing, the joint venture was successfully able to construct a permanent access shaft structure without any of the prior leaks, soil movement, or other problems.
Read MorePort of Miami Tunnel
Ground freezing was selected to provide ground stabilization and water cut-off for Port of Miami Tunnel Cross Passages 2 and 3, located eighty to one hundred and twenty feet below sea level.
Read MoreNo. 7 Line Extension Project
Ground freezing was chosen to safely maintain stability, restrict groundwater inflow and limit settlement of the overlying structures to support hand-mining excavation.
Read MoreEastside CSO
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.
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