When we think about the construction of a heavy structure, we need to keep in mind that the foundation of this structure must rest on the hard bed. Sometimes the hard bed is located at a reasonable depth under soft overlying soil. In that case, the pier foundation would be most suited.
In case of pier foundation, vertical shafts or holes are made in suitable sizes and spacing, and filled with cement concrete. Shafts or holes are carried to the hard bed so that cement concrete vertical piers may directly rest on the hard bed and transfer the structural load to it. Details coming soon …..