A SOFT SETTLING STRUCTURE AND METHOD FOR SETTING THE SAME

摘要

A soft landing structure (1, 3 or 4) is constructed as a structure installed on the water-bottom ground improved or slightly excavated together with the improvement, and comprises a plurality of ballast tanks (12) capable of being charged with water and also freely regulating the quantity of water. The soft landing structure is installed on the water-bottom ground under the condition that the quantity of water in the ballast tanks (12) is regulated such that the total weight of the structure including the weight of water in the ballast tanks (12) is greater than the buoyancy of the structure in the landing state, that the structure in the landing state does not cause the settlement of ground even if the buoyancy varies, and that the structure lands on the bottom of the water at the appropriate contact pressure determined enough to withstand the deformation caused by horizontal force. <IMAGE>