Keller installs either tremie seals or soil mixing underneath water basements and structures. We cater to the most cost-effective alternative for our clients.
Process
Tremie seals have been used for centuries. Some of the earliest tremie seals have been discovered under Roman bridges. With a long history of efficiency, a tremie seal aids an excavation to minimize water intrusion. When excavating deep, along a shoreline, close to a river, nearby a body of water, or below a water table, dewatering the site/excavation can be challenging. A tremie seal is a non-reinforced concrete slab anchored by piles against buoyancy and installed underwater by divers within sheet piling or slurry walls to control water intrusion.
The perimeter sheet piling is installed, followed by anchored production piles. The tremie is poured, and the excavation can be dewatered when the concrete slab gets hard enough.
Specialist contact
Paul Schmall, Ph.D., PE, is Vice President of Business Development at Keller North America.
He has more than 35 years of experience in geotechnical engineering and underground construction, with expertise in groundwater control, dewatering, grouting, ground freezing, tunneling, dam construction and rehabilitation, and forensic investigations of geotechnical failures related to groundwater.
Paul holds a Bachelor of Science in Civil Engineering from Bucknell University and a Ph.D. in Geotechnical Engineering from the University of Nottingham. He is a co-author of the third edition of Construction Dewatering and Groundwater Control and served as President of The Moles, one of North America's leading heavy construction organizations.
Common uses
- Minimize dewatering costs
- Create barriers to side or bottom groundwater flow
- For deep excavation below water tables
- Cofferdams
Advantages
- Long history of efficiency
- Minimizes water intrusion
Related projects
Residential
Ritz-Carlton Residences
Keller successfully completed the auger cast pile installation and service elevator pit excavation bottom seal on time and on budget.
