Bi-directional Testing

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Single Level Bi-Directional Static Load Test

The O-cell is a hydraulically driven, high capacity, sacrificial loading device installed within the foundation unit. As the load is applied to the O-cell, it begins working in two directions; upward against upper side shear and downward against base resistance...

Multiple Level Bi-Directional Static Load Test

Single or multiple O-cells® can be arranged on multiple levels to isolate strata of interest. A zone of interest can be isolated within levels of O-cells and zone specific data can be retrieved from mobilzing this section. The multi-level O-cell*...

Bored Piles and Caissons

The O-cell® is used in production (proof tests) and non-production (preliminary test) piles either attached to the pile/shaft’s reinforcing steel cage or placed using a steel beam carrier frame. Multiple O-cells can be used and placed on the same plane...

CFA Piles

O-cells® have been successfully installed in CFA piles to depths exceeding 45 m. Installation of the O-cell does not change the typical CFA pile construction method, however, a modified grout mix is recommended to ease placement into the fresh grout...

Slurry Walls / Barrettes

Multiple O-cells® can be placed in series to test rectangular panel sections. Loadtest has been engaged on several barrette projects and has developed an efficient, cost effective method for full scale static load testing of barrettes using the O-cell method....

Driven Piles

Specially constructed O-cells® can be attached to driven piles. Load testing can be performed on prestressed concrete piles, steel pipe piles and cylinder piles. For driven piles, a rugged design ensures that O-cells driven to refusal conditions perform as designed....

How the O-cell works

The O-cell is a hydraulically driven, high capacity, sacrificial loading device installed within the...

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