An experienced contractor will review the diagrams and suggestions

An experienced contractor will review the diagrams and suggestions for the placement of the piers. The pier shaft will have three rods of steel placed inside the wet concrete. The two man team will then raise the tool along with the soil that has been cut away. As a certain amount of soil is cut away the two man team will stop the turning of the drill and shaft.

The work crew will begin drilling the Bell Bottom Pier shaft with a motorized drill. The soil will be placed in a wheelbarrow to be removed from the site. It consists of a cap, shaft, and bell bottom.

The final part of excavating soil for the pier is the belling process. It will be approximately three feet by four feet with a depth of three feet. If any internal support is needed then piers will be placed in interior locations. The cap of the pier will have two of steel rebar placed inside the wet concrete. When the Bell Bottom Pier method of foundation repair is selected the property owner has made a choice to employ the "old fashioned" method. The purpose of the box is two fold. It will taper downward to a point where the pier shaft will be drilled.

The Bell Bottom Pier is now fully excavated.

A "box" must be dug at the pier placement site for several reasons.. Each shaft and bell are dug with a two man team until they reach stable soil or bedrock. The drilling process will remove soil for the shaft and the bell bottom or foot of the pier. They will repeat this process until the foot or bell bottom has been fully cut and excavated. The steel rebar will give the pier greater strength and longevity. The shaft will be drilled using a nine inch drill bit and therefore will have a final diameter of nine inches. The turning force is provided by a gasoline powered motor that compresses air. These flanges will fly outward due to the centrifugal force of the spinning bell tool. The two man team will repeat this process until they have reached the desired depth for the pier shaft. The two man team must hold a T-shape bar in a steady position while the metal shaft and drill are turning. Usually Bell Bottom Piers can be placed every eight feet around the foundation perimeter and provide more than enough support for the foundation. They will raise the drilling equipment and the cut soil from the hole. Generally the shaft will be about eight to eleven feet long. The length of the shaft will depend on the soil test and location of stable soil or bedrock. A unique belling tool is attached to the vertical metal shaft and lowered down into the pier shaft. The cut soil will be inside the belling tool and the work crew will China Motor Shaft Manufacturers have to carefully remove the soil before continuing. It will create space for the work crew to install the entire pier and the lower portion of the box will be the form for the concrete cap of the pier. It is now ready for the pouring of the wet concrete and placement of the steel rebar.

During the drilling process one or more of the work crew will be assembling the steel rebar for the piers. This tool has two flanges that will fly outward to cut the soil. The total length of the Bell Bottom Pier will generally be twelve to fifteen feet. The drill or digging auger is placed on a vertical metal shaft that will be lowered as more soil is turbocharger shaft Suppliers removed. This "box" will be dug under and slightly outside the foundation perimeter. It will provide a significant amount of support for the foundation that will rest on top.

Once the "box" has been completed and all of the soil has been removed from the area, the work crew can begin the drilling process. Unlike other foundation repair methods, the Bell Bottom Pier method has been thoroughly tested and is the most reliable and most permanent solution for concrete slab foundations.

Prior to the actual drilling and belling process there has been an inspection of the building structure and its foundation. The final foot will have a diameter of 22 inches and will rest on either bedrock or in stable soil


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