SETTLEMENT PREVENTION METHOD FOR UNDERWATER STRUCTURE ON SANDY SOIL

摘要

PROBLEM TO BE SOLVED: To provide a settlement prevention method for an underwater structure on sandy soil capable of preventing the settlement of the underwater structure by outflow of sand on the submarine sandy soil under the influence of wave or the like or occurrence of liquefaction phenomenon. SOLUTION: A sheet material is constructed from the overall bottom of the inside of a steel built-up net to the proper side of the inside, a plurality of riprup bedding cages infilled with rubble are arranged and constructed thereon so as to cover the submarine sandy soil 5, and an underwater structure is constructed thereon.