QUALITY EVALUATION METHOD AND QUALITY EVALUATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a quality evaluation method and a quality evaluation device, capable of facilitating the quality evaluation of an underwater base rock or rock.

SOLUTION: A quality evaluation method for evaluating the quality of an underwater base rock R that comes from nature includes: an acceleration data acquisition process for allowing a hitting surface 11d of a hammer 11 having an acceleration sensor 11b and the spherical hitting surface 11d to collide with the base rock R existing on the sea bottom to acquire acceleration data to be obtained with the acceleration sensor 11b; a deformation characteristic calculation process for allowing a computer 23 to calculate the deformation characteristics of the base rock R by using the elastic contact theory of Hertz on the basis of the acceleration data; and a quality determination process for allowing the computer 23 to determine the quality of the base rock R on the basis of the deformation characteristics acquired in the deformation characteristic calculation process.

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