PROJECT
Midlothian YMCA, Phase III
Midlothian, VA.
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PRODUCT:
A.B. Chance SS175 Piles: 8/10/12 lead installed 25 ft.avg. SS175 Underpinning Brackets, C150-00299 (80 kip ultimate) A.B. Chance SS5 Soil Screws (8-in. helix) installed 10-14 ft.

DESCRIPTION:
The basement addition required concrete underpinning of the existing building's corners and an earth retention system to protect adjacent structures. A Chance Soil Screw retention system was used with Chance screws installed horizontally into the adjacent soil, then covered with welded wire fabric and shotcrete.

ADVANTAGES:
Faster construction and high capacity application.
One-stop "shopping" for foundation support and earth retention systems.

Underpinning Helical^® Pier Anchors
Helical^® Pier anchors (square shaft) (SS) are designed for simple installation and to maximize the load capacity of each helix. Shafts and helixes are of steel and selected to meet or exceed specific installing torque and design loads. When utilizing the technology of the Helical Piers there is little concern regarding bending moments. Soil will sufficiently support the shaft and aid in establishing a good foundation.

Existing Structures:
Applications:
• Settled Structures
• Incorrect Excavations
• Construction Issues: Dewatering or Vibration
• Incorrect Recompaction Prodcedures
• Environmental Changes or Water Table Movement
• Correction of Initial Poor Construction Procedures

New Construction:

The CHANCE Helical Pier Foundation Systems are designed, tested, and proven for applications in expansive soils, high water tables, fill areas, and other areas where unstable soils require piering. CHANCE is the only company with a pre-engineered and manufactured underpinning system evaluated and listed by all national building code agencies.

Applications:
• Building Foundations
• Transmission Towers
• Pipelines and Tanks

• Helical Piers for New Construction Brochure

• Download the Example Project Application Brochure