CA964942A - Stress-indicating rock bolt bearing assembly - Google Patents

Stress-indicating rock bolt bearing assembly

Info

Publication number
CA964942A
CA964942A CA147,963A CA147963A CA964942A CA 964942 A CA964942 A CA 964942A CA 147963 A CA147963 A CA 147963A CA 964942 A CA964942 A CA 964942A
Authority
CA
Canada
Prior art keywords
stress
bearing assembly
rock bolt
bolt bearing
indicating rock
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.)
Expired
Application number
CA147,963A
Other versions
CA147963S (en
Inventor
John A. Millcarch
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.)
WESTERN CANADA STEEL Ltd
Original Assignee
WESTERN CANADA STEEL 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 WESTERN CANADA STEEL Ltd filed Critical WESTERN CANADA STEEL Ltd
Priority to CA147,963A priority Critical patent/CA964942A/en
Application granted granted Critical
Publication of CA964942A publication Critical patent/CA964942A/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
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
    • F16B31/028—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load with a load-indicating washer or washer assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
CA147,963A 1972-07-26 1972-07-26 Stress-indicating rock bolt bearing assembly Expired CA964942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA147,963A CA964942A (en) 1972-07-26 1972-07-26 Stress-indicating rock bolt bearing assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA147,963A CA964942A (en) 1972-07-26 1972-07-26 Stress-indicating rock bolt bearing assembly

Publications (1)

Publication Number Publication Date
CA964942A true CA964942A (en) 1975-03-25

Family

ID=4093946

Family Applications (1)

Application Number Title Priority Date Filing Date
CA147,963A Expired CA964942A (en) 1972-07-26 1972-07-26 Stress-indicating rock bolt bearing assembly

Country Status (1)

Country Link
CA (1) CA964942A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149446A (en) * 1977-12-01 1979-04-17 Bethlehem Steel Corporation Load indicator washer
US4378180A (en) * 1980-11-05 1983-03-29 Scott James J Yieldable mine roof support fixture
EP0395929A1 (en) * 1989-04-29 1990-11-07 BWM Dübel + Montagetechnik GmbH Supporting bar for a carrying rail of a wall-or ceiling covering
WO2008043417A1 (en) * 2006-10-14 2008-04-17 Fischerwerke Gmbh & Co. Kg Anchor
WO2008052748A2 (en) * 2006-10-31 2008-05-08 Petras Und Guggumos Gbr Disc nut
DE102008037155A1 (en) * 2008-08-08 2010-02-11 Fischerwerke Gmbh & Co. Kg Load damper for anchor for fastening component in anchoring base, has two elements, which are moved against each other, where both elements lie together with protrusion, which effects friction between both elements
EP3000963A1 (en) * 2014-09-25 2016-03-30 Cayeli Bakir Isletmeleri A.S. Mine support assembly for anchoring in a bore hole in the form of an improved rock bolt

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149446A (en) * 1977-12-01 1979-04-17 Bethlehem Steel Corporation Load indicator washer
US4378180A (en) * 1980-11-05 1983-03-29 Scott James J Yieldable mine roof support fixture
EP0395929A1 (en) * 1989-04-29 1990-11-07 BWM Dübel + Montagetechnik GmbH Supporting bar for a carrying rail of a wall-or ceiling covering
WO2008043417A1 (en) * 2006-10-14 2008-04-17 Fischerwerke Gmbh & Co. Kg Anchor
WO2008052748A2 (en) * 2006-10-31 2008-05-08 Petras Und Guggumos Gbr Disc nut
WO2008052748A3 (en) * 2006-10-31 2008-06-19 Petras Und Guggumos Gbr Disc nut
DE102008037155A1 (en) * 2008-08-08 2010-02-11 Fischerwerke Gmbh & Co. Kg Load damper for anchor for fastening component in anchoring base, has two elements, which are moved against each other, where both elements lie together with protrusion, which effects friction between both elements
EP3000963A1 (en) * 2014-09-25 2016-03-30 Cayeli Bakir Isletmeleri A.S. Mine support assembly for anchoring in a bore hole in the form of an improved rock bolt

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