Driven below the layer that loses strength every wet season, so the seasonal movement stops.
In Bonaire the ground beneath a foundation changes strength with the water table. Soil that carries the house comfortably in autumn holds noticeably less in a wet spring, and a footing bearing on it moves with that cycle.
A push pier gets the load below that zone. Driven hydraulically against the weight of the structure, it advances through the saturated material and stops where it meets a stratum that resists in any season. The gauge pressure verifies each location.
Saturated ground actually makes the driving easier, and it means the pier has to go further before it reaches something reliable. Once the piers are set, lifting recovers what the seasonal cycle has taken, and the movement stops repeating because the bearing is no longer in the layer that changes.
Every Bonaire home gets the same push pier installation scope, and the written price says exactly what that covers.

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