First, the Pier Pipe is driven to a firm bearing stratum; then the lift equipment is combined with a manifold system to lift the structure. The Atlas Resistance® Pier System procedure provides measured support strength. Atlas Resistance® Piers are spaced at adequate centers where each pier is driven to a suitable stratum and then tested to a force greater than required to lift the structure. This procedure effectively load tests each pier prior to lift and provides a measured Factor of Safety on each pier at lift.
Atlas Resistance® Piers have been used to restore and/or stabilize homes and commercial structures that had settled due to a wide variety of soil problems. Foundation settlement and movement can be caused by building on expansive clay, compressible or improperly compacted fill soils, or improper maintenance around foundations. Whatever the cause, settlement can destroy the value of structures and render them unsafe.
You can find more information about the resistance piers here
