JPS57206810A - Measuring device for shielding device - Google Patents

Measuring device for shielding device

Info

Publication number
JPS57206810A
JPS57206810A JP9128581A JP9128581A JPS57206810A JP S57206810 A JPS57206810 A JP S57206810A JP 9128581 A JP9128581 A JP 9128581A JP 9128581 A JP9128581 A JP 9128581A JP S57206810 A JPS57206810 A JP S57206810A
Authority
JP
Japan
Prior art keywords
target
convex lens
light
shielding device
displacement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9128581A
Other languages
Japanese (ja)
Other versions
JPS5912965B2 (en
Inventor
Sumio Nozaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OKUMURA CONSTR CO Ltd
Okumura Corp
Okumuragumi KK
Original Assignee
OKUMURA CONSTR CO Ltd
Okumura Corp
Okumuragumi KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by OKUMURA CONSTR CO Ltd, Okumura Corp, Okumuragumi KK filed Critical OKUMURA CONSTR CO Ltd
Priority to JP9128581A priority Critical patent/JPS5912965B2/en
Publication of JPS57206810A publication Critical patent/JPS57206810A/en
Publication of JPS5912965B2 publication Critical patent/JPS5912965B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

PURPOSE:To enable to find a displacement of a shielding device, by a method wherein an optical system, consisting of a convex lens and two scale targets crossing the optical axis of said lens at right angles, is mounted, and a center line of an excavation plan is irradiated with light to read a position of light on the targets. CONSTITUTION:A convex lens 5 and a first target 6 are secured to opposite sides of a frame body 8, and a second target 7 is attached between the lens 5 and the target 6 by means of regulating means 9 so that it can move in the axial direction of the convex lens. A measuring device 1 is constituted such that a distance between the convex lens 5 and the first target 6 is equal to the focus distance of the convex lens 5, and the targets 6 and 7 are marked with the degrees in a concentric circle. The measuring device 1 is mounted to a rear end of a shielding device 2 to radiate focusing light from a focusing light generator along a tunnel plan outer line 4. In case the plan center line 4 does not coincide with the center line of the shielding device 24, light on each target is displaced in position, and thereby the displacement of the shielding device is found from said displacement in position.
JP9128581A 1981-06-13 1981-06-13 Shield machine surveying equipment Expired JPS5912965B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9128581A JPS5912965B2 (en) 1981-06-13 1981-06-13 Shield machine surveying equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9128581A JPS5912965B2 (en) 1981-06-13 1981-06-13 Shield machine surveying equipment

Publications (2)

Publication Number Publication Date
JPS57206810A true JPS57206810A (en) 1982-12-18
JPS5912965B2 JPS5912965B2 (en) 1984-03-27

Family

ID=14022185

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9128581A Expired JPS5912965B2 (en) 1981-06-13 1981-06-13 Shield machine surveying equipment

Country Status (1)

Country Link
JP (1) JPS5912965B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6173705A (en) * 1984-09-20 1986-04-15 Hitachi Chem Co Ltd Optical resin material
JPS6175211A (en) * 1984-09-19 1986-04-17 Nippon Supiide Shiyoa Kk Deviation detector for direction control of shielding machine
JPS63151812A (en) * 1986-12-15 1988-06-24 スペクトラ―フィジックス・レーザープレーン・インコーポレーテッド Device and method of detecting position and azimuth of reference beam
JPH0738913U (en) * 1992-04-02 1995-07-14 鉄建建設株式会社 Shield machine direction measuring device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175211A (en) * 1984-09-19 1986-04-17 Nippon Supiide Shiyoa Kk Deviation detector for direction control of shielding machine
JPS6173705A (en) * 1984-09-20 1986-04-15 Hitachi Chem Co Ltd Optical resin material
JPS63151812A (en) * 1986-12-15 1988-06-24 スペクトラ―フィジックス・レーザープレーン・インコーポレーテッド Device and method of detecting position and azimuth of reference beam
JPH0523688B2 (en) * 1986-12-15 1993-04-05 Supekutora Fuijitsukusu Reezaapureen Inc
JPH0738913U (en) * 1992-04-02 1995-07-14 鉄建建設株式会社 Shield machine direction measuring device

Also Published As

Publication number Publication date
JPS5912965B2 (en) 1984-03-27

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