Why The
System Works Over 80 years ago, Engineers at the A.B. Chance Company produced pages full of mathematical equations to prove this theory, but the facts are: Soil holds 100% the weight of your home. When there are problems in the soil, there are problems in the home. When this occurs, the problems need to be solved. In essence, the weight of the home must be taken off this bad soil and transferred to a composition which will hold the home. Dumping concrete or driving straight tubes in the ground does not solve the problem, and in some cases increases it. This is proven by mathematics and case histories. Remember, when the contractor built the home he thought the ground was solid. How can I hold the home? It's easy, place helical piers in the ground well below any seasonal or moisture changes. These piers support all movement, up and down (as the engineers would say, compression and tension), and develop a solid base with an engineered safety factor of at least two to one built in. The
A.B. Chance Company invented the first earth anchor in 1912 and has been a leader in this field ever since. This system is a pre-engineered system which is patented and backed by more than 80 years of structural engineering. The system consists of a load-bearing helical pier that is constructed of a steel, helical shaped plate attached to a galvanized high strength steel shaft. The piers are driven into the ground so that the helical shaped plate is anchored into deep stable soil. A portable high-torque hydraulic drive head is used to install the piers. The load-bearing capacity of the pier is based on the torque it takes to drive the pier. As the pier comes in contact with bearing soil, the helical plate begins to meet more and more resistance. Calculations based on the torque of the hydraulic drive motor and the amount of resistance experienced by the pier flange, determine the bearing capacity of the soil. This has been engineered and proven in thousands of load tests across the nation. The system can be installed with minimal disturbance to the surrounding property, eliminating the need for large excavations and heavy trucks. On top of the pier, a heavy duty L shaped bracket is attached to the footer. This bracket transfers the loads from the foundation down the column to the helical plate, deep in solid ground. Once in place, hydraulic jacks can be placed on top of the pier to lift the structure. In most instances, we are able to completely close all cracks and return the structure back to its original position during construction. No other system can do this. |
