| 摘要 |
PROBLEM TO BE SOLVED: To provide a surveying method, for three-dimensional coordinates on a floating-body structure, in which a surveying tower or the like can be installed on the floating-body structure economically and with good accuracy. SOLUTION: A total station 3 is installed on the surface 1A of the floating- body structure 1 which floats on water, and a correlation between the collimation face 3A of the total station 3 and the surface 1A of the structure 1 is found. By the total station 3, a distance up to an installation object (a reception part 5a) installed on the surface 1A of the structure 1 from the total station 3 and its angle are measured. The three-dimensional coordinates which use the collimation face 3A of the total station 3 of the installation object 5a as a reference are found. On the basis of the correlation between the collimation face 3A of the total station 3 and the surface 1A of the structure 1, the three- dimensional coordinates which use the surface 1A of the structure 1 as a reference is obtained, and the installation accuracy of the installation object 5a is confirmed.
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