optimum rock bolt pull testing

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  • Rock Bolt Pull Out Test Apparatus – Sun LabTek

    2012-8-29 · ANCHORAGE PULL TESTING FOR FULLY GROUTED ROOF BOLTS Christopher Mark, Rock Mechanics Team Leader Craig S. Compton, Engineering Technician David C. Oyler, Mechanical Engineer Dennis R. Dolinar, Mining Engineer National Institute for Occupational Safety and Health

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  • ANCHORAGE PULL TESTING FOR FULLY GROUTED ROOF

    2018-4-1 · Pull tests in interbedded sandstone and shale. In these plots the relevant rock mass units are highlighted in colour while the other units are greyed out. This technique - highlighting relevant features and greying out items of secondary importance - is applied to many of the plots presented in this paper.

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  • Results of pull tests of rock bolts and cable bolts in ...

    2021-1-22 · Procedure for Rock Bolt Rock Anchor Pull Out Test Test Procedure. The drill hole diameter is kept as double the diameter of the element. The standard specification follows up for hole drilling operations must be ensured. Inspect the hole for size and length. Clean the hole with air- water jet.

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  • Rock Bolt Anchor (Elements) in situ Pull Out Test 54 ...

    2017-10-1 · A laboratory pull-out test sample consists of the bolt (rock bolt or cable bolt), the rock sample, the metallic tube and the materials used to grout the bolt to the rock and to the tube. The proper preparation of the samples, in particular the accurate coaxiality of all elements, is very important to ensure the correct assemblage of the experimental bench.

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  • Laboratory pull-out tests on fully grouted rock bolts

    5.1 Rock bolts are used for support in a variety of mining and civil engineering situations. 3 The pull test may be used to provide a quantitative measure of the relative performance of different anchor systems in the same rock type. Anchor systems may be different mechanical anchors or different bond materials or lengths for grouted anchors.

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  • ASTM D4435 - 13e1 Standard Test Method for Rock

    2020-2-1 · The coaxial pull test is a commonly practiced procedure for assessing the in-situ load capacity of tendon support elements, including rock bolts, cables, and other ground anchor variations. The procedure involves installing the support element in agreement with the normal operational procedures/protocols at the given site and subsequently ...

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  • Augmenting the in-situ rock bolt pull test with ...

    The end of the rock bolt, or pulling rod if strength values, the test holes should be drilled using the same used, shall be smooth with a counter-sink area approximately 1⁄4 in. (6 mm) in diameter to accommodate the measuring tip of methods as the construction rock bolt holes.

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  • (PDF) Standard Test Method for Rock Bolt Anchor Pull

    2020-4-8 · Standardized Rock Bolt Pull Test Database. Thanks also to Francois Charette and Mario Bureau of Atlas Copco Ltd. (the manufacturer of the Swellex bolt), for their assistance and for providing the background information regarding Swellex bolts and pull testing. I would also like to thank the

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  • ANALYSIS OF SWELLEX BOLT PERFORMANCE

    0-100t Tensile Testing Equipment for Anchorage Rebar Rock Bolt Pull out Test. FOB Price: US 1000-4000 set. Min. Order: 1 set. Type: Testing Machine. Application: Rock Bolt Pull out Testing. Certification: ISO9001: 2000. Condition: New. Display: Digital Gauge or Mechanical Pressure Gauge. Measurement Range: 0-1000kn.

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  • (PDF) Standard Test Method for Rock Bolt Anchor Pull

    For Annual Book of ASTM Strength of a Rock Bolt Anchor (Pull Test),”Suggested Methods for Rock Bolt Standards volume information, refer to the standard’s Document Summary page on Testing, International Society for Rock Mechanics Commission on Standardization the ASTM website. of …

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  • (PDF) Standard Test Method for Rock Bolt Anchor Pull

    Designation: D 4435 – 84 (Reapproved 1998) Standard Test Method for Rock Bolt Anchor Pull Test1 This standard is issued under the fixed designation D 4435; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

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  • Pull Test Equipment - DSI Underground Austria

    2019-5-29 · Pull testing equipment is required for non-destructive and destructive pull-out tests on anchors and bolts. Pull-out tests on anchors and bolts are performed for supervision of the bolting quality. Depending on the type and design of the bolt in use, different testing equipment is utilized. Depending on the operation purpose, modularly designed ...

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  • Tension Jack/Pull Test Kit - DSI Underground Canada

    2017-2-28 · The pull test kit consists of two assemblies: a mechanical assembly which includes a claw, stand, nut, & spindle. a hydraulic assembly which includes a hollow core ram, hand pump, gauge, & hose. The gauge measures pressure, which is easily converted into tons of load. Suitable for testing virtually all types of rock bolts and soil nails.

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  • (PDF) Trends in non-destructive testing of rock bolts

    2019-10-10 · and verify non-destructive test methods for rock bolts, as this. will eventually boost confidence of practical engineers. Song et al. [6] note that the rock bolt testing …

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  • Design and Testing of a Nondestructive Friction Bolt Tester

    2012-8-29 · the friction bolt past the ring and plate, and then a cone assembly was expanded. In stiff rock, the rock’s confining force kept the device from pushing the wall of the friction bolt apart. However, the measurement reading of the initial pull-out load was false. In softer rock, the expander would tear the bolt …

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  • PHQ STFB20T Friction Bolt Pull Tester

    2016-4-6 · Once the friction bolt is installed in the rock face, with the pull collar in place, the pull tester can be put into position. The pull tester has an anvil designed to slip over the pull collar. The anvil is attached to the hydraulic cylinder within the frame. The device is designed so that the anvil pulls on the pull …

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  • Structural Pull-Out Testing & Certification of Anchor ...

    2015-12-21 · Rock Bolt Soil Nail Pull Test Collar IMPORTANT - NOTE ORIENTATION OF COLLAR ... • Suitable for tensioning Dywidag threadbar and testing virtually all types of rockbolts and soil nails • When testing Split Set , Swellex , or forged head bolts, the pull collar must be put onto the bolt BEFORE installation of the bolt • 30 ton units ...

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  • Thiessen Pull Test Kit 30 TEAM

    2021-7-4 · Welcome to Optimum Prime Industrial Sales Corporation Wholesale Bolts and Nuts Supplier Philippines . Welcome to Optimum Prime Industrial Sales Corporation! We invite you to browse the pages of our website to find out more about our quality products at competitive prices. This website has been designed to give you a brief overview of our company.

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  • Anchor Pull Testing - Applied Technical Services

    Designation: D 4435 – 84 (Reapproved 1998) Standard Test Method for Rock Bolt Anchor Pull Test1 This standard is issued under the fixed designation D 4435; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

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  • (PDF) Standard Test Method for Rock Bolt Anchor Pull

    2019-3-11 · The rock bolt specimens were pulled on a test rig specially constructed for bolt testing. The test rig mainly consists of a steel tube, with a length of 460 mm. The steel tube is 74/54 mm in outer/inner diameter. The steel tube is filled with concrete to simulate the rock mass. A borehole with a diameter of 30 mm is drilled to install the bolt.

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  • Performance of a New Yielding Rock Bolt Under Pull

    Rock bolt testing equipment; Rock bolt testing provides a quality control of the rock bolt system behaviour in combination with given ground conditions; Bolt load indicators and custom-specific pull test kits are provided upon request; 1) After grouting 2) Expansion shells …

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  • Pull Out Testing UK for bolts, fixings, ties and anchors.

    2014-2-15 · 5.1 Rock bolts are used for support in a variety of mining and civil engineering situations. 3 The pull test may be used to provide a quantitative measure of the relative performance of different anchor systems in the same rock type. Anchor systems may be different mechanical anchors or different bond materials or lengths for grouted anchors.

    Get Price
  • CT-Bolt - DSI Civil

    Mid to lower range heavy duty pull test applications. Test anchors up-to M24 in diameter; This kit covers the middle ground between the smaller M2000 and the larger M2008 models; M2008 Heavy Duty Proof Load Tester Kit with 0-145kN Digital Gauge. For proof load testing of larger construction fixings up-to 145kN; Test anchors from M12 to M30 in ...

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  • ASTM-D4435 | Standard Test Method for Rock Bolt

    2017-5-17 · analyses. Therefore, field tests have been performed on rock bolts that been in service for 50 years. A previously developed test rig had been modified in this project to register both load and deflection of the pull-out test. The test rig consists of a hydraulic jack that presses a cylinder towards the rock surrounding the bolt.

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  • Anchor Pull Testing - Applied Technical Services

    2021-6-3 · A full-scale test rig has been developed at the Rock Mechanics Laboratory at SINTEF and NTNU in Trondheim for testing rock mounting bolts with load application in both tensile and shear directions, as well as a combination of both. The test setup gives us the opportunity to define bolt capacity in different situations, and also to examine the ...

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  • Full-scale testing of rock bolts - SINTEF

    Testing of rock bolts in full-scale laboratory-controlled conditions is therefore of great importance. At the rock mechanics laboratory of SINTEF and Norwegian University of Science and Technology (NTNU) in Trondheim, a rock bolt test rig has been developed for full-scale testing for pull, shear and combination pull …

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  • Laboratory full-scale rock bolt testing: Analysis of ...

    Rock Bolt Pull Out Test Apparatus As per B.I.S. – 11309, ASTM D4435, ISRM. The objective of the test method is to measure the working and ultimate capacities of rock bolt anchors. The system comprises of a central hole jack, hand pump with load gauge, directional …

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  • Rock Testing Equipments - Rock Bolt Pull Out Test

    2015-5-10 · Maiolino, S 'Full Scale Lab Testing for the Determination of Rock Bolt Contribution to Reinforced Joint Shear Strength.' Paper presented at the 13th ISRM International Congress of Rock Mechanics, Montreal, Canada, May 2015.

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  • Rock Bolt Pull Testing Equipment - WECAND

    Sandberg offers bolt testing using two tensometers to cover a wide range of loads as well as different test parameters. Range of bolt tests includes: UKAS accredited for ISO 6892 Tensile tests – Load range 0.1kN to 600kN. Tensile testing of full size and machined bolts. Head soundness test.

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  • Rock Bolt Pull Out Test Apparatus | HEICO

    2019-3-11 · The rock bolt specimens were pulled on a test rig specially constructed for bolt testing. The test rig mainly consists of a steel tube, with a length of 460 mm. The steel tube is 74/54 mm in outer/inner diameter. The steel tube is filled with concrete to simulate the rock mass. A borehole with a diameter of 30 mm is drilled to install the bolt.

    Get Price
  • Rock Testing Equipments - Rock Bolt Pull Out Test

    Testing of rock bolts in full-scale laboratory-controlled conditions is therefore of great importance. At the rock mechanics laboratory of SINTEF and Norwegian University of Science and Technology (NTNU) in Trondheim, a rock bolt test rig has been developed for full-scale testing for pull, shear and combination pull …

    Get Price
  • [PDF] Laboratory full-scale rock bolt testing: Analysis

    2019-5-29 · Pull testing equipment is required for non-destructive and destructive pull-out tests on anchors and bolts. Pull-out tests on anchors and bolts are performed for supervision of the bolting quality. Depending on the type and design of the bolt in use, different testing equipment is utilized. Depending on the operation purpose, modularly designed ...

    Get Price
  • Pull Test Equipment - DSI Underground Austria

    2016-4-6 · Once the friction bolt is installed in the rock face, with the pull collar in place, the pull tester can be put into position. The pull tester has an anvil designed to slip over the pull collar. The anvil is attached to the hydraulic cylinder within the frame. The device is designed so that the anvil pulls on the pull …

    Get Price
  • PHQ STFB20T Friction Bolt Pull Tester

    2015-12-21 · Rock Bolt Soil Nail Pull Test Collar IMPORTANT - NOTE ORIENTATION OF COLLAR ... • Suitable for tensioning Dywidag threadbar and testing virtually all types of rockbolts and soil nails • When testing Split Set , Swellex , or forged head bolts, the pull collar must be put onto the bolt BEFORE installation of the bolt • 30 ton units ...

    Get Price
  • Structural Pull-Out Testing & Certification of Anchor ...

    2016-7-19 · rock bolt installation. 11.5 Torque Application.-Ensure that the torque application is smooth and that the force causing the torque is applied through the center of the torque wrench handle. 12. Procedure 12.1 Test.-Determine the tension in a rock bolt or its anchor. 12.1.1 Fit the socket of the torque wrench to the rock bolt head or nut to be ...

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  • Thiessen Pull Test Kit 30 TEAM

    Hilti's anchor site testing service is the solution. Schedule anchor site testing. As a Structural Engineer, you may not have enough data available to determine the resistance of a post-installed anchor for a safer, efficient and cost-effective design. Approval documents …

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  • Determining Rock Bolt or Anchor Tension Using a Torque

    【摘要】:正A recently introduced yielding rock bolt,trade name Roofex,appears to have the required energy absorbing component of a dynamic support system.According to the manufacturer's specification,the Roofex bolts can yield 300 mm(or more) displacement while holding 80 kN pull load.In order to assess the performance of this support unit in situ,particularly in coal ribs,a series of ...

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  • Anchor Site Testing - Hilti Corporation

    2019-7-30 · ResearchArticle Interaction between an Eco-Spiral Bolt and Crushed Rock in a Borehole Evaluated by Pull-Out Testing Seong-SeungKang,1 AtsuoHirata,2 Bo-AnJang,3 Yong ...

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  • Rock Support Testing: Pull Tests

    2015-7-30 · strength of the rock bolt. This test has become known as the short encapsulation pull test (SEPT) and is an internationally recognised method of measuring the anchorage or bond properties of fully bonded rock bolts. Saxum provides an independent rock bolt testing service where each of the elements of a rock bolting system; hole size, drill bit ...

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  • Rock Bolt Pull Out Test Apparatus - Zeal International

    Rock Bolt Pull Out Test Apparatus. ZI 6013. Standards:IS 11309, ASTM D 4435. Specification: The objective of the test method is to measure the working and ultimate capacities of rock bolt anchors.

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  • PHQ STFB20T Friction Bolt Pull Tester

    2016-4-6 · Once the friction bolt is installed in the rock face, with the pull collar in place, the pull tester can be put into position. The pull tester has an anvil designed to slip over the pull collar. The anvil is attached to the hydraulic cylinder within the frame. The device is designed so that the anvil pulls on the pull …

    Get Price
  • Performance of a New Yielding Rock Bolt Under Pull

    2019-3-11 · The rock bolt specimens were pulled on a test rig specially constructed for bolt testing. The test rig mainly consists of a steel tube, with a length of 460 mm. The steel tube is 74/54 mm in outer/inner diameter. The steel tube is filled with concrete to simulate the rock mass. A borehole with a diameter of 30 mm is drilled to install the bolt.

    Get Price
  • Thiessen Pull Test Kit 30 TEAM

    2015-12-21 · Rock Bolt Soil Nail Pull Test Collar IMPORTANT - NOTE ORIENTATION OF COLLAR ... • Suitable for tensioning Dywidag threadbar and testing virtually all types of rockbolts and soil nails • When testing Split Set , Swellex , or forged head bolts, the pull collar must be put onto the bolt BEFORE installation of the bolt • 30 ton units ...

    Get Price
  • Anchor Site Testing - Hilti Corporation

    Hilti's anchor site testing service is the solution. Schedule anchor site testing. As a Structural Engineer, you may not have enough data available to determine the resistance of a post-installed anchor for a safer, efficient and cost-effective design. Approval documents …

    Get Price
  • Determining Rock Bolt or Anchor Tension Using a Torque

    2016-7-19 · rock bolt installation. 11.5 Torque Application.-Ensure that the torque application is smooth and that the force causing the torque is applied through the center of the torque wrench handle. 12. Procedure 12.1 Test.-Determine the tension in a rock bolt or its anchor. 12.1.1 Fit the socket of the torque wrench to the rock bolt head or nut to be ...

    Get Price
  • Testing Mechanical Properties of Rock Bolt under

    Fiber Bragg grating (FBG) sensors, which can accurately measure strain, can be integrated with rock bolts with small fingerprints. In this paper, according to the force mechanism of prestressed anchor and non-prestressed anchor, different loading modes were designed, named active loading mode and passive loading mode. Then, FBG technology was used to monitor the axial force variation of ...

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  • Testing of ground anchors - equipment and test types

    Mid to lower range heavy duty pull test applications. Test anchors up-to M24 in diameter; This kit covers the middle ground between the smaller M2000 and the larger M2008 models; M2008 Heavy Duty Proof Load Tester Kit with 0-145kN Digital Gauge. For proof load testing of larger construction fixings up-to 145kN; Test anchors from M12 to M30 in ...

    Get Price