Remediation of Distressed Frozen Earth Cofferdams
Paper describing an aggressive ground freezing approach as the final solution to a complex problem of site geometry and unexpected groundwater conditions. Read More
Largest 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
Gibson County Coal Mine
Forty, 4-inch diameter, steel closed-end freeze pipes, plus a comprehensive array of piezometers and temperature monitors, installed through the overburden soils and extending 15 feet into the underlying sound rock.
Read MoreCombined Sewer Overflow Tunnel
The overall project involved the freezing of four shafts excavated by conventional methods, plus an additional two shafts which were raise bored through frozen ground.
Read MoreKansas Underground Salt Museum
Ground freezing was the owner’s method of choice to stabilize more than 135 feet of sand and unstable mudstone overburden to ensure completely dry and stable elevator shaft excavation.
Read MoreNew York City Water Tunnel No. 3
Moretrench used artificial ground freezing toprovide ground support and groundwater controlprotection at five shaft locations in midtown Manhattan.
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