METHOD OF CONSTRUCTING A RIGID STRUCTURE UPON THE BOTTOM OF A WATER AS WELL AS LOST CASING FOR PERFORMING SAID METHOD

摘要

This invention is a method and casing (1) constructing a rigid structure upon the bottom of the water. The casing to be used is a lost pillar casing of particular shape. It is larger at the bottom than at a higher level and preferably has been composed of flat plates into a polygonal cross sectional shape with similarity to multiple sided pyramid. It can be combined with wall casing slit into recesses of the pillar casings. Concrete is filled into the double walls and the interior of the pillar casings or between casings is filled with bulk stoney material.