WO2012017410A3 - A stress or strain monitoring system and a method of monitoring stress or strain - Google Patents

A stress or strain monitoring system and a method of monitoring stress or strain Download PDF

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Publication number
WO2012017410A3
WO2012017410A3 PCT/IB2011/053486 IB2011053486W WO2012017410A3 WO 2012017410 A3 WO2012017410 A3 WO 2012017410A3 IB 2011053486 W IB2011053486 W IB 2011053486W WO 2012017410 A3 WO2012017410 A3 WO 2012017410A3
Authority
WO
WIPO (PCT)
Prior art keywords
strain
stress
monitoring
strata
area
Prior art date
Application number
PCT/IB2011/053486
Other languages
French (fr)
Other versions
WO2012017410A2 (en
Inventor
Andries Lottering
Elrond Bishop
Francois Pieterse
Paul Stracy Wootten
Steven Paul Mason
Original Assignee
Azuravax (Proprietary) Limited
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 Azuravax (Proprietary) Limited filed Critical Azuravax (Proprietary) Limited
Publication of WO2012017410A2 publication Critical patent/WO2012017410A2/en
Publication of WO2012017410A3 publication Critical patent/WO2012017410A3/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
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/02—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection having means for indicating tension

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Emergency Alarm Devices (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

This invention relates to a stress or strain monitoring system and to a method for monitoring stress or strain in strata associated with a particular area. The system comprises at least a receiver module configured to receive strain data indicative of stress or strain associated with strata in an area being monitored; and a safety management module configured to firstly analyse the received strain data, and secondly generate an alarm at least if the received strain data is indicative of a dangerous stress or strain associated with strata in the area being monitored.
PCT/IB2011/053486 2010-08-04 2011-08-04 A stress or strain monitoring system and a method of monitoring stress or strain WO2012017410A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA201005562 2010-08-04
ZA2010/05562 2010-08-04

Publications (2)

Publication Number Publication Date
WO2012017410A2 WO2012017410A2 (en) 2012-02-09
WO2012017410A3 true WO2012017410A3 (en) 2016-04-14

Family

ID=45558995

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/IB2011/053486 WO2012017410A2 (en) 2010-08-04 2011-08-04 A stress or strain monitoring system and a method of monitoring stress or strain
PCT/IB2011/053485 WO2012017409A1 (en) 2010-08-04 2011-08-04 A monitoring apparatus, and a support means

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/053485 WO2012017409A1 (en) 2010-08-04 2011-08-04 A monitoring apparatus, and a support means

Country Status (1)

Country Link
WO (2) WO2012017410A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014049529A2 (en) * 2012-09-28 2014-04-03 Wekaba Engineering (Proprietary) Limited Installation of stressing assemblies
CN105373082A (en) * 2014-08-07 2016-03-02 中兴通讯股份有限公司 Mine safety management method and mine safety management device based on geographical information system
WO2017219134A1 (en) * 2016-06-21 2017-12-28 Alert Technologies Inc. Sensing device for a rock bolt
EP3748122A1 (en) * 2019-06-04 2020-12-09 Sandvik Mining and Construction Tools AB A tension indicator for a rock bolt
CN111005750A (en) * 2019-12-31 2020-04-14 法施达(大连)实业集团有限公司 Tunnel anchor bolt drawing monitoring system and method based on block chain
CN113404541A (en) * 2021-06-29 2021-09-17 陕西工业职业技术学院 Tunnel surrounding rock deformation on-line monitoring and early warning system
CN113789819A (en) * 2021-09-18 2021-12-14 江苏省地质矿产局第三地质大队 System and method for monitoring prestress of anchor rod of expansive soil slope

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7342007B2 (en) * 2003-03-14 2008-03-11 Astrazeneca Ab Lactams and uses thereof
US7571058B2 (en) * 2006-05-09 2009-08-04 Lockheed Martin Corporation System to monitor the health of a structure, program product and related methods

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1468168A2 (en) * 2001-12-31 2004-10-20 The Government of the United States of America, as represented by the Secretary, Department of Health & Human Services Strain detection in rock bolts

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7342007B2 (en) * 2003-03-14 2008-03-11 Astrazeneca Ab Lactams and uses thereof
US7571058B2 (en) * 2006-05-09 2009-08-04 Lockheed Martin Corporation System to monitor the health of a structure, program product and related methods

Also Published As

Publication number Publication date
WO2012017410A2 (en) 2012-02-09
WO2012017409A1 (en) 2012-02-09

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