No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
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.
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 a load gauge, …
Pull test using a bolt test adaptor and button adaptor accessories. M2050 Pro Tester Kit with 0-50kN Digital Gauge. 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. M2000 Height Safety Tester Kit – with 0-25kN ...
SS-39 pull test equipment The pull tester consists of two assemblies: the hydraulic portion which includes the cylinder, gage, pump, hose and adapter; and the mechanical portion which includes the claw, housing, U-shaped bushing, spindle and nut. With the bushing removed, the claw can be slid over the pull collar which has been installed with the
Pull-off and bond strength testing provides a popular method of testing both the adequacy of a coating's adhesion, as well as its point of failure. In order to test the pull-off strength of a coating on concrete, the technician would use one of the variety of pull-off testers supplied by Humboldt, such as HC-2985-Proceq DY-2 Pull-off Tester ...
Download scientific diagram | Pull test equipment (see online version for colours) from publication: Effect of profile bolt in bond strength fully grouted rock bolts using analytical and ...
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 ... 5.7 Drilling Equipment—The same type of drilling equip-ment and drill bits that will be used for installing rock bolts during the construction phase of the project shall be used as far
on the rock bolt to rotate. Using the tension-to-torque ratio of the calibrated torque wrench, determine the tension in the rock bolt. 4. Significance and Use 4.1 Performance.-Rock bolts are used for support in a variety of engineering applications. This test provides a quantitative measure of the performance of a rock bolt or its anchor. 4.2 ...
The bolts were tested by a number of different contractors and operators with different test equipment. With the exception of the cable bolts and the split set, the bolts were tested utilising typical off-the-shelf kits available from the various rock bolt suppliers. ... Interpretation of pull test results of grouted rock bolts. In: Proceedings ...
3 For additional information see, "Suggested Method for Determining the Strength of a Rock Bolt Anchor (Pull Test),"Suggested Methods for Rock Bolt Testing, International Society for Rock Mechanics Commission on Standardization of Laboratory and Field Tests, 1974. *A Summary of Changes section appears at the end of this standard.
Pull Testing service ensures safety and stability in underground mining operations, providing our clients with the peace of mind that their structures are properly reinforced. We offer efficient and quality solutions to control structural reinforcement in your
We offer the finest pull testing, anchor testing, and tower testing services across the U.S.A. Contact us today. ... Anchor Rod/Bolt Sizes from 1/2"- 3.00" Test loads up to 500,000 lbs (500kips) Wind Tower bolt testing; ASTM E4-16 Calibrat ed …
Current edition approved Nov. 30, 1984. Published January 1985. 2 For additional information see, "Suggested Method for Determining the Strength of a Rock Bolt Anchor (Pull Test),"Suggested Methods for Rock Bolt Testing, International Society for Rock Mechanics Commission on Standardization of Laboratory and Field Tests, 1974. 1.
Pull-out tests, in which a bolt is grouted into a rock sample and then steadily pulled out, are generally performed to determine the failure or maximum pull-out capacity and displacement's values ...
This paper presents results of 71 in situ nondestructive rock bolt and tendon pull tests conducted in the Powerhouse Complex of the Uma Oya Multipurpose Development Project, located in Sri Lanka. The pull tests are performed on 6 and 8 m Double Corrosion Protected fully and partially grouted rock bolts (high strength threadbar) as well as 4 m normal fully grouted …
been developed for full-scale testing for pull, shear and combination pull-shear tests. The rock bolt test rig was developed in 1995, in conjunction with Gisle Stjern's doctoral thesis. The test rig was financed ... Mixing and filling with grout is normally performed with ordinary field equipment. The drill hole needs . 220
Rock Bolt Pull Out Test Machine. Application. PZ Series rock bolt pull out test machine applies to test pull-out resistance of various kinds of rock bolt, anchor cable, rebar, embedded steel bars, expansion bolt, chemical anchor bolt, railspike and other anchoring parts. Technical Specifications
The expandable rock bolt pull test not only evaluates the strength and quality of this type of bolt. It also makes it possible to detect possible anomalies caused by incorrect …
Make: LabTek Model: SL-RK-011 Origin: India 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.The system comprises of a central hole jack, hand pump with a load gauge, directional control value (only for central hole jacks above the capacity of 500 kn), flexible hose pipe 5 …
Download scientific diagram | Rock bolt pull-out test apparatus. from publication: Application of a FBG-Based Instrumented Rock Bolt in a TBM-Excavated Coal Mine Roadway | Rock bolts have been ...
Early use of anchors included the application of rock bolts in Poland in 1918 and later in Czechoslovakia in 1926. Anchors were first introduced into civil engineering in 1934 by the French engineer André Coyne (strand anchors in sandstone to allow the raising of the Cheurfas dam in Algeria). ... Testing equipment. The principal components of ...
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.
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 ...
Application PZ Series rock bolt pull out test machine applies to test pull-out resistance of various kinds of rock bolt, anchor cable, rebar, embedded steel bars, expansion bolt, chemical anchor bolt, railspike and other anchoring parts.
Manufacturer of Rock Testing Equipments - Rock Cutting Machine, Rock Bolt Pull Out Test, Core Cutting Grinding Machine and Rock Triaxial Testing Machine offered by Veekay Industries, New Delhi, Delhi. Send Email. 08048976432 …
Hydrajaws' range of portable pull testers enables engineers to perform pull-out tests on a wide range of fasteners, fixings, safety-critical anchors, and lifeline systems to verify their installation. Need help choosing the correct pull tester? See our Product Selector page. Or phone us on +44 (0)1675 430370, we're happy to help!
The objective of the Rock Bolt apparatus or Rock Bolt Pull Out Test Apparatus is to measure the working and ultimate capacities of rock bolt anchors.
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.
Suitable for testing virtually all types of rock bolts and soil nails; When testing friction bolts, OMEGA-BOLT ®, or forged head bolts, the pull collar must be put onto the bolt BEFORE …
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 a load gauge, directional control value (only for central hole jacks above the capacity of 500 kn), flexible hose pipe 5 mts, truss high tensile bolts with coupling.
