tremie seal

tremie seal

Concrete placed under water by means of a tremie to seal a cofferdam or caisson so that water may be pumped out.
References in periodicals archive ?
After the tremie seal gains strength, the cofferdam is dewatered and footing construction begins.
The north tower foundation plans originally called for a 6-meter-thick reinforced concrete footing with a 2-meter-thick concrete tremie seal.
This multi-level facility will require extensive dewatering below sea level, and installation of a steel cofferdam and a concrete tremie seal.
The tremie seal would be poured after the cofferdam had been completely excavated, and would be in direct contact with the bottom of the bay.