Title:
トンネル内周面変位計測装置
Document Type and Number:
Japanese Patent JP7174664
Kind Code:
B2
Abstract:
To easily measure displacement of a tunnel inner circumferential surface.SOLUTION: A tunnel inner circumferential surface displacement measurement device 100 comprises: an acquisition unit 30 acquiring coordinates at a plurality of locations on a tunnel inner circumferential surface S at first hour and second hour; a generation unit 40 generating an uneven pattern on a C-C cross section crossing a tunnel axis direction, using the coordinates acquired by the acquisition unit 30; an uneven degree calculation unit 50 calculating an uneven degree at predetermined points on the uneven pattern at the first hour and second hour generated by the generation unit 40; a determination unit 60 determining that a predetermined point at the first hour and a predetermined point at the second hour correspond to each other when the uneven degree at the first hour and the uneven degree at the second hour, which are calculated by the uneven degree calculation unit 50, are similar to each other; and a difference calculation unit 70 calculating a difference between the coordinates at the predetermined points at the first hour and second hour corresponding to each other.SELECTED DRAWING: Figure 2
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Inventors:
Shimizu Seiichiro
Miyajima Yasuyuki
Miyajima Yasuyuki
Application Number:
JP2019071625A
Publication Date:
November 17, 2022
Filing Date:
April 03, 2019
Export Citation:
Assignee:
Kashima Construction Co., Ltd.
International Classes:
G01C7/06; E21D9/04; G01C15/00
Domestic Patent References:
| JP2013238549A | ||||
| JP2016205837A | ||||
| JP2000329551A |
Attorney, Agent or Firm:
Goto Patent Office
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