WHY YOU NEED IT
WHAT IS IT?
Helical pilings are square or round shaft galvanized steel pilings that screw into the ground. They are incorporated into other foundation elements like footings, pile caps, or structural slabs and can provide load and/or uplift capacities up to 100 tons or more per pile. They are approved by national building code agencies BOCA, ICBO, SBCCI, CCMC and ICC. The CHANCE® helical piling and tension anchor has become the deep foundation system of choice for architects, builders, contractors, engineers and geotechnical firms.
METHODOLOGY AND INSTALLATION
Each helical piling is designed by our engineers to perform based on the required loads and soil conditions of your project. Helical pilings are quickly installed either with a mini-excavator or, in limited space applications, can be installed with a hand-held device. The process starts by gathering data about your existing soil and structure’s condition:
1) TESTING AND DESIGN: For most projects the design process occurs with gathering information about your project.
2) IMPLEMENTATION: We mobilize to your site and review the scope of work with you. The mason excavates for his footings Our crew follows directly behind the mason and starts installing the helical pilings. The piles are cut to the desired length and typically have a steel pile cap installed. The mason then follows directly behind our crew and places the forms and reinforcement steel.
3) TESTING: If requested, the helical pilings can be tested for compliance of both compression and tension capacities. The engineer of record determines the needed capacities and the piles are typically tested to a safety factor of x 2. The testing is completed by Foundation Technologies (an independent consulting company) and reviewed by the engineer of record.
4) FINALIZATION: Installation logs are kept for each pile and reviewed by the engineer of record. The logs keep track of the total depth achieved by each pile and pressures encountered during installation. The logs are submitted to the building department along with a Certificate of Completion from the engineer to certify that our installation was in compliance with the plan.
HOW THEY ARE USED
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