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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Aziz, Naj
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Topics
Publications (13/13 displayed)
- 2023Investigating shear behaviour of fibreglass rock bolts reinforcing infilled discontinuities for various pretension loadscitations
- 2022Axial Performance of Cementitious Grouted Cable Bolts Under Rotation Constraint Scenarioscitations
- 2021Backfill grouting for mining subsidence prevention
- 2019Shear strength of rock joints under constant normal loading conditions
- 2019Numerical exploration of performance of cable bolts in shear loading
- 2019Strength properties of grout for strata reinforcement
- 2018Mechanical behaviours of grout for strata reinforcement
- 2016Load transfer characteristics of plain and spiral cable bolts tested in new non rotating pull testing apparatus
- 2016A follow up to study the behaviour of cable bolts in shear: experimental study and mathematical modelling
- 2016Mechanical properties of grouts at various curing times
- 2015Strength characteristics of Secura Hollow Groutable Cable Bolts
- 2015An experimental study on the contact surface area of cabled bolted strata
- 2015Strength properties of fibre glass dowels used for strata reinforcement in coal mines
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document
An experimental study on the contact surface area of cabled bolted strata
Abstract
The application of cable bolts in underground mines is an increasing trend all over the world; therefore, it is necessary to determine the axial and shear stresses on cable bolts. One important factor is to determine the coefficient of friction of concrete joint surface. This paper examines the contact coefficient of several cabled strata under various pre-tension loads subject to double shearing test. The result shows that the contact surface area can vary between 70-90% of the total surface area. Thisempirical value helps to figure out shear and axial stresses, where it is impossible to determine the exactamount of contact coefficient.