PH12015500722B1 - Steel pipe insertion work steel pipe strain detection structure. - Google Patents

Steel pipe insertion work steel pipe strain detection structure.

Info

Publication number
PH12015500722B1
PH12015500722B1 PH12015500722A PH12015500722A PH12015500722B1 PH 12015500722 B1 PH12015500722 B1 PH 12015500722B1 PH 12015500722 A PH12015500722 A PH 12015500722A PH 12015500722 A PH12015500722 A PH 12015500722A PH 12015500722 B1 PH12015500722 B1 PH 12015500722B1
Authority
PH
Philippines
Prior art keywords
steel pipe
diameter portion
cylindrical steel
small diameter
sensor rod
Prior art date
Application number
PH12015500722A
Other versions
PH12015500722A1 (en
Inventor
Naoto Iwasa
Kei Higuchi
Original Assignee
Nippon Steel And Sumikin Metal Products Co Ltd
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 Nippon Steel And Sumikin Metal Products Co Ltd filed Critical Nippon Steel And Sumikin Metal Products Co Ltd
Publication of PH12015500722A1 publication Critical patent/PH12015500722A1/en
Publication of PH12015500722B1 publication Critical patent/PH12015500722B1/en

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
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0004—Force transducers adapted for mounting in a bore of the force receiving structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

A hollow sensor rod (5), having a small diameter portion (7), and a large diameter portion (8) forming a slight gap with respect to an inner surface of a cylindrical steel pipe (1) provided alternately therein is inserted into the cylindrical steel pipe (1), and both ends of the hollow sensor rod are fixed to the cylindrical steel pipe (1). A strain gauge (13) is stuck to an outer peripheral surface of the small diameter portion (7) of the sensor rod, and a lead line is inserted into the sensor rod (5) from a lead line insertion hole (7a) opened in the small diameter portion (7) and is drawn out from a head portion of the cylindrical steel pipe (1). When the cylindrical steel pipe (1) is bent by the movement of the soil mass, the sensor rod (5) is bent so as to follow the bending deformation of the cylindrical steel pipe (1) by the action of the large diameter portion (8) that forms a slight gap with respect to the inner surface of the cylindrical steel pipe (1). At that time, since a strain which is larger than the outer peripheral surface of the large diameter portion (8) occurs in the outer peripheral surface of the small diameter portion (7), the bending deformation of the cylindrical steel pipe (1) may be detected with high sensitivity by the strain gauge (13) stuck to the outer periphery of the small diameter portion (7).
PH12015500722A 2012-10-04 2015-03-31 Steel pipe insertion work steel pipe strain detection structure. PH12015500722B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012222198A JP5748722B2 (en) 2012-10-04 2012-10-04 Reinforcing bar strain detection structure for reinforcing bar insertion
PCT/JP2013/076711 WO2014054642A1 (en) 2012-10-04 2013-10-01 Steel pipe insertion work steel pipe strain detection structure

Publications (2)

Publication Number Publication Date
PH12015500722A1 PH12015500722A1 (en) 2015-06-01
PH12015500722B1 true PH12015500722B1 (en) 2015-06-01

Family

ID=50434968

Family Applications (1)

Application Number Title Priority Date Filing Date
PH12015500722A PH12015500722B1 (en) 2012-10-04 2015-03-31 Steel pipe insertion work steel pipe strain detection structure.

Country Status (5)

Country Link
JP (1) JP5748722B2 (en)
IN (1) IN2015DN03207A (en)
PH (1) PH12015500722B1 (en)
TW (1) TWI599705B (en)
WO (1) WO2014054642A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106441210A (en) * 2016-11-18 2017-02-22 中国科学院武汉岩土力学研究所 Device for measuring circumferential strain of rock specimen
CN110186369B (en) * 2019-05-20 2021-04-13 河海大学 Experimental device and method for detecting strain of reinforced ring in reinforced soil structure
CN112254864A (en) * 2020-10-16 2021-01-22 中国海洋大学 Device for in-situ real-time monitoring pore pressure of sediment and seabed deformation and distribution method
CN117571063B (en) * 2024-01-19 2024-04-09 四川康新高速公路有限责任公司 Reinforcing steel bar performance detection device and detection method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3211822A1 (en) * 1982-03-31 1983-10-13 Glötzl, Gesellschaft für Baumeßtechnik mbH, 7512 Rheinstetten EXTENSOMETER
JP2514095Y2 (en) * 1990-06-28 1996-10-16 前田建設工業株式会社 Pipe strain gauge
JP2002148081A (en) * 2000-11-10 2002-05-22 Tokai Phs Hanbai Kk Bending force sensor
JP5618330B2 (en) * 2010-11-18 2014-11-05 日鐵住金建材株式会社 Ground insertion tube

Also Published As

Publication number Publication date
IN2015DN03207A (en) 2015-10-02
JP5748722B2 (en) 2015-07-15
WO2014054642A1 (en) 2014-04-10
PH12015500722A1 (en) 2015-06-01
TWI599705B (en) 2017-09-21
TW201420853A (en) 2014-06-01
JP2014074295A (en) 2014-04-24

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