Title:
TUNNEL CONTROL CHART AND ITS SYSTEM
Document Type and Number:
Japanese Patent JP3867025
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a tunnel control chart capable of grasping a secular change of a tunnel easily and visually.
SOLUTION: This tunnel control chart includes a base line (CL) for showing the line shape of a tunnel (2), a plurality of survey points [P(i)] set at prescribed intervals along the base line (CL) of the tunnel (2), and line segments having respectively the length corresponding to the section peripheral length (Di) calculated from the section measured at each survey point [P(i)] and extending in the direction perpendicular or approximately perpendicular to the base line (CL). An object (a changed state or a facility in the tunnel) including at least one of three-dimensional coordinate data is displayed on the control chart so that the three-dimensional coordinates can be specified by the distance from the base line (CL) and the distance from the survey point [P(i)].
Inventors:
Nakata Ken
Kazuhide Nakaba
Michiya Oura
Kazuhide Nakaba
Michiya Oura
Application Number:
JP2002198695A
Publication Date:
January 10, 2007
Filing Date:
July 08, 2002
Export Citation:
Assignee:
Nakata Surveying Co., Ltd.
Kansai Construction Survey Co., Ltd.
Obayashi Corporation
Kansai Construction Survey Co., Ltd.
Obayashi Corporation
International Classes:
E21D11/00; G01C7/06; G01N21/954; (IPC1-7): G01C7/06; E21D11/00; G01N21/954
Domestic Patent References:
| JP2000331168A | ||||
| JP2002083017A | ||||
| JP2003329442A |
Attorney, Agent or Firm:
Aoyama Aoi
Takuji Yamada
Takuji Yamada