UPPER SURFACE LEVELING METHOD, SEAFLOOR FOUNDATION CONSTRUCTION METHOD AND UPPER SURFACE LEVELING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a seafloor foundation construction method capable of: effectively reducing work time required for an upper surface leveling process; shortening a construction period of a seafloor foundation; and reducing a cost such as a labor cost required for construction.;SOLUTION: A weight 3 lifted by a crane 10 is repeatedly dropped to tamp down and level an upper surface of a riprap foundation. An information processing device 20 calculates a variation in heights of a reflection prism 25 before and after the weight 3 is dropped. The information processing device 20 also calculates a difference between the height of the riprap foundation at a present time and a construction height of the riprap foundation on the basis of the height of the reflection prism 25. In addition, the information processing device 20 calculates a lifting height of the weight 3.;COPYRIGHT: (C)2014,JPO&INPIT