Helical PierĘ Foundation Systems Installation Procedure
 

When you select Chance Helical PierĘ Foundation Systems to remedy your foundation problems, a dealer certified by the Chance Company will visit your home to inspect your foundation and determine installation requirements. The dealer will prepare an installation design based on your home's damage and weight and local soil conditions. The design analysis will address the size, position and load requirements for each anchor. Then the dealer will give you a price quotation and time estimate for the Helical Pier Foundation System installation.

Following the design specifications, the contractor will excavate down to the footing at each anchor location. A notch will be chipped out of the footing to accommodate a support bracket. A high-torque hydraulic drive will screw the anchors into stable subsoil until the prescribed depth is reached. A steel L-shaped bracket placed on top of each anchor shaft will connect the base of the foundation wall. The weigh of your home will then be transferred to the Helical Pier Foundation Systems by a calculated procedure of hydraulic jacking and adjustment of the brackets. Finally, all excavation will be backfilled.
Settling, cracking or bulging concrete floors are also the result of soil movement and are corrected in much the same way. An access hole is cut through the floor at the prescribed location. A screw anchor is inserted through the opening and screwed into stable subsoil. The top of the anchor is then fitted with a steel channel plate that spans the diameter of the hole. Screwing a bolt through the channel plate applies the load to the anchor shaft and the floor is raised. After the correction is made, the access holes are filled with concrete.

Buckled foundations and walls are also stabilized by screw anchors. The contractor first carefully excavates a narrow trench outside, along the foundation wall, to relieve pressure and provide room for repositioning the wall. A small hole is drilled through the wall at the affected area. From inside, a steel shaft is inserted through the hole and a screw plate is attached outside. Then the contractor uses a drive motor to install the screw anchor to its proper depth. A ribbed steel plate positioned over the shaft protruding inside the wall is secured by a nut. Tightening the nut counteracts further movement and, in many cases, straightens the wall.