Title:
表面波探査解析方法及び表面波探査解析装置
Document Type and Number:
Japanese Patent JP6843427
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To realize simplification of the operation for the ground survey by automatization of the extraction of the inflection point in the D-Vrb curve.SOLUTION: The surface wave survey analyzer for the ground survey system to exerts the ground survey by exciting the ground surface vertically and detecting the generated surface wave around it, calculates an average propagation velocity Vrb(f) and a depth D(f) of the surface wave by processing the output signals of at least two acceleration sensors located at the excitation site at a spacing L. After repeating the process to calculate the average propagation velocity Vrb(f) and the depth D(f) and generates a depth D-average propagation velocity Vrb(f) curve, plural inflection points are chosen to the acquired depth D-average propagation velocity Vrb(f) curve, and the section velocity between the inflection points are calculated on the basis of the chosen plural inflection points. Especially the choice of the plural inflection points is made from the variation of the velocity data ΔV as a factor in the depth D-average propagation velocity Vrb curve.SELECTED DRAWING: Figure 1
Inventors:
Kumasaka Chohan
Koji Mukai
Koji Watanabe
Yusuke Koishi
Koji Mukai
Koji Watanabe
Yusuke Koishi
Application Number:
JP2016217303A
Publication Date:
March 17, 2021
Filing Date:
November 07, 2016
Export Citation:
Assignee:
BIC Co., Ltd.
International Classes:
G01V1/00; E02D1/02; G01V1/28
Domestic Patent References:
| JP2009007859A | ||||
| JP2013247003A | ||||
| JP2002318285A | ||||
| JP2002341048A |
Attorney, Agent or Firm:
Kenho Ikeda