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Residential Projects
Olsen & Jones Garage – Portland, OR
Specialty Contractor: PLI Systems, Inc.
General Contractor: Olson & Jones
Geotechnical Engineer: Earth Engineers Inc.
Structural Engineer: SCE
Two 12-foot-wide by 20-foot-long precast concrete vaults with 12-foot opening in the middle to connect them were installed to create a spacious two-car garage. The two stalls create a partially open room feel because of their 12-foot opening in the interior.
The garage vaults were transported and delivered with a crane in one day to minimize any disturbance to the neighbors.
A concrete grade beam, 5 feet deep is located in front of the garage to counter sliding forces.
Light-weight, pervious cellular concrete was installed on top of the garage and the slope behind to create a useful rooftop space and planting terraces. The weight of the cellular concrete is 22 to 25 pounds per cubic foot. This is about 4.5 times lighter than soil. The cellular concrete used has approximately 60 to 100 psi compressive strength.
Dixon Home
Specialty Contractor: PLI Systems, Inc.
General Contractor: PLI Systems, Inc.
Geotechnical Engineer: Terra Dolce Consultants, Inc.
Structural Engineer: Cascade Engineering, Inc.
Landscape Architect: Quatrefoil, Inc.
A pile and tieback wall was constructed to stabilize the home, which was settling. In addition, the backyard became usable for the owners.
PLI Systems, inc. drilled shafts with a flight auger system attached to a spider excavator. This was the only possible way to get the job done. Driving piles was not an option due to the potential for vibrations on the steep slope with neighbors nearby.
Wide flange piles were installed in the shafts and backfilled with concrete.
Titan 40/16 tieback anchors were used to resist lateral forces.
Steel square tubes served as walers to make the connection between the tieback anchors and the pile.
The material between the piles is double twisted fabric. This idea was developed by PLI Systems, Inc, a few decades ago.
With more than 30 years of experience, PLI Systems has the expertise and equipment to handle almost any residential soil and foundation stabilization problem. We have gathered specialized equipment from all over the world and have hired experts from various fields to train our employees. From stabilizing settling foundations to remediating landslides, PLI Systems is the one company that does it all.
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PLI Systems has the expertise and equipment to handle almost any soil and foundation stabilization problem. We have gathered specialized equipment from all over the world.