A new equation for the shear strength of cable bolts incorporating the energy balance theory

Article


Rasekh, Haleh, Mirzaghorbanali, Ali, Nemcik, Jan, Aziz, Naj and Li, Xuwei. 2017. "A new equation for the shear strength of cable bolts incorporating the energy balance theory." Geotechnical and Geological Engineering: an international journal. 35 (4), pp. 1529-1548. https://doi.org/10.1007/s10706-017-0191-2
Article Title

A new equation for the shear strength of cable bolts incorporating the energy balance theory

ERA Journal ID4022
Article CategoryArticle
AuthorsRasekh, Haleh (Author), Mirzaghorbanali, Ali (Author), Nemcik, Jan (Author), Aziz, Naj (Author) and Li, Xuwei (Author)
Journal TitleGeotechnical and Geological Engineering: an international journal
Journal Citation35 (4), pp. 1529-1548
Number of Pages20
Year2017
PublisherSpringer
Place of PublicationNetherlands
ISSN0960-3182
1573-1529
Digital Object Identifier (DOI)https://doi.org/10.1007/s10706-017-0191-2
Web Address (URL)https://link.springer.com/content/pdf/10.1007%2Fs10706-017-0191-2.pdf
Abstract

The application of cable bolts as a secondary support system is an increasing trend in underground coal mines worldwide. The performances of cable bolts have been evaluated under both axial and shear loading conditions. Two methods of
testing cables for shear, single and double shear, have
been recognised. This paper examines the shear behaviour of a variety of cable bolts under different pre-tension loads by double shear testing. Plain, spiral and the combination of both cable types were used in this study. The initial axial load and the type of cable bolts are the main factors affecting their shear strength. By increasing the axial pre-tension load, the peak shear load occurs at lower shear displacement. The failure angle due to cable bending across the joint at different pre-tension loads varied between 41
and 49. This demonstrates that the ratio of axial and
perpendicular displacements is almost constant and on average the failure occurs at about 45. A novel
analytical model is proposed to evaluate the shear behaviour of pre-tensioned fully grouted cable bolts subjected to double shearing. Energy and Fourier Series methods were incorporated in the model to simulate the shear behaviour of cable bolts. The comparison of the experimental results with the proposed model shows a good agreement.

Keywordscable bolts; shear behaviour; double shear test; pre-tension; fourier series; energy balance theory
ANZSRC Field of Research 2020400502. Civil geotechnical engineering
400599. Civil engineering not elsewhere classified
401902. Geomechanics and resources geotechnical engineering
401905. Mining engineering
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Byline AffiliationsUniversity of Wollongong
School of Civil Engineering and Surveying
Institution of OriginUniversity of Southern Queensland
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Rasekh, Haleh, Aziz, Naj, Nemcik, Jan, Mirzaghorbanali, Ali and Li, Xuwei. 2015. "An experimental study on the contact surface area of cabled bolted strata." Aziz, Naj and Kininmonth, Bob (ed.) 2015 Coal Operators' Conference. Wollongong, Australia 11 - 13 Feb 2015 Wollongong, Australia.
Numerical investigation of the shear behaviour of a cable bolt in single shear test
Li, Xuwei, Yang, Guanyu, Nemcik, Jan, Mirzaghorbanali, Ali and Aziz, Naj. 2019. "Numerical investigation of the shear behaviour of a cable bolt in single shear test." Tunnelling and Underground Space Technology. 84, pp. 227-236. https://doi.org/10.1016/j.tust.2018.11.016
Mechanical behaviours of grout for strata reinforcement
Mirzaghorbanali, Ali, Gregor, Peter, Alkandari, Hamed, Aziz, Naj and McDougall, Kevin. 2018. "Mechanical behaviours of grout for strata reinforcement." Aziz, Naj and Kininmonth, Bob (ed.) 2018 Coal Operators' Conference. Wollongong, Australia 07 - 09 Feb 2018 Wollongong, Australia.
Innovative approach to strata reinforcement in coal mines with reference to evaluation cable bolts shear strength
Aziz, N., Mirzaghorbanali, A., Yang, G., Khaleghparast, S. and Rasekh, H.. 2018. "Innovative approach to strata reinforcement in coal mines with reference to evaluation cable bolts shear strength." Journal of Mining and Environment. 9 (3), pp. 703-715. https://doi.org/10.22044/jme.2018.6918.1525
Prediction of the main caving span in longwall mining using fuzzy MCDM technique and statistical method
Mohammadi, S., Ataei, M., Khaloo Kakaie, R. and Mirzaghorbanali, A.. 2018. "Prediction of the main caving span in longwall mining using fuzzy MCDM technique and statistical method." Journal of Mining and Environment. 9 (3), pp. 717-726. https://doi.org/10.22044/jme.2018.6715.1492
The effects of installation procedure on bond characteristics of fully grouted rock bolts
Ma, Shuji, Aziz, Naj, Nemcik, Jan and Mirzaghorbanali, Ali. 2017. "The effects of installation procedure on bond characteristics of fully grouted rock bolts." Geotechnical Testing Journal. 40 (5), pp. 846-857. https://doi.org/10.1520/GTJ20160239
Shear strength properties of cable bolts using a new double shear instrument, experimental study, and numerical simulation
Mirzaghorbanali, Ali, Rasekh, Haleh, Aziz, Naj, Yang, Guanyu, Khaleghparast, Saman and Nemcik, Jan. 2017. "Shear strength properties of cable bolts using a new double shear instrument, experimental study, and numerical simulation." Tunnelling and Underground Space Technology. 70, pp. 240-253. https://doi.org/10.1016/j.tust.2017.07.018
An experimental study on the shear performance of fully encapsulated cable bolts in single shear test
Aziz, Naj, Rasekh, Haleh, Mirzaghorbanali, Ali, Yang, Guanyu, Khaleghparast, Saman and Nemcik, Jan. 2018. "An experimental study on the shear performance of fully encapsulated cable bolts in single shear test." Rock Mechanics and Rock Engineering. 51 (7), pp. 2207-2221. https://doi.org/10.1007/s00603-018-1450-0
Simulation of macerals effects on methane emission during gas drainage in coal mines
Taheri, Adel, Sereshki, Farhang, Ardejani, Faramarz Doulati and Mirzaghorbanali, Ali. 2017. "Simulation of macerals effects on methane emission during gas drainage in coal mines." Fuel. 210, pp. 659-665. https://doi.org/10.1016/j.fuel.2017.08.081
Effects of cyclic loading on the shear behaviour of infilled rock joints under constant normal stiffness conditions
Mirzaghorbanali, Ali, Nemcik, Jan and Aziz, Naj. 2014. "Effects of cyclic loading on the shear behaviour of infilled rock joints under constant normal stiffness conditions." Rock Mechanics and Rock Engineering. 47 (4), pp. 1373-1391. https://doi.org/10.1007/s00603-013-0452-1
Shear strength properties of plain and spirally profiled cable bolts
Aziz, Naj, Mirzaghorbanali, Ali, Nemcik, Jan, Heeman, Kay and Mayer, Stefan. 2015. "Shear strength properties of plain and spirally profiled cable bolts." Canadian Geotechnical Journal. 52 (10), pp. 1490-1495. https://doi.org/10.1139/cgj-2014-0504
Double shear testing of cable bolts with no concrete face contacts
Rasekh, Haleh, Aziz, Naj, Mirzaghorbanali, Ali, Nemcik, Jan, Li, Xuwei, Yang, Guanyu and Khaleghparast, Saman. 2017. "Double shear testing of cable bolts with no concrete face contacts." Procedia Engineering. 191, pp. 1169-1177. https://doi.org/10.1016/j.proeng.2017.05.292
Strength properties of grout for strata reinforcement
Aziz, Naj, Majoor, Dean and Mirzaghorbanali, Ali. 2017. "Strength properties of grout for strata reinforcement." Procedia Engineering. 191, pp. 1178-1184. https://doi.org/10.1016/j.proeng.2017.05.293
Comparison of the shear test results of a cable bolt on three laboratory test apparatuses
Li, Xuwei, Aziz, Naj, Mirzaghorbanali, Ali and Nemcik, Jan. 2017. "Comparison of the shear test results of a cable bolt on three laboratory test apparatuses." Tunnelling and Underground Space Technology. 61, pp. 82-89. https://doi.org/10.1016/j.tust.2016.10.003
Analytical model of shear behaviour of a fully grouted cable bolt subjected to shearing
Li, Xuwei, Nemcik, Jan, Mirzaghorbanali, Ali, Aziz, Naj and Rasekh, Haleh. 2015. "Analytical model of shear behaviour of a fully grouted cable bolt subjected to shearing." International Journal of Rock Mechanics and Mining Sciences. 80, pp. 31-39. https://doi.org/10.1016/j.ijrmms.2015.09.005
Mechanical properties of grouts at various curing times
Mirza, Ali, Aziz, Naj, Ye, Wang and Nemcik, Jan. 2016. "Mechanical properties of grouts at various curing times." Aziz, Naj and Kininmonth, Bob (ed.) 2016 Coal Operators' Conference. Wollongong, Australia 10 - 12 Feb 2016 Wollongong, Australia.
Modelling simulation of the performance of cable bolts in shear
Rasekh, Haleh, Mirza, Ali, Aziz, Naj, Nemcik, Jan and Li, Xuwei. 2016. "Modelling simulation of the performance of cable bolts in shear." Aziz, Naj and Kininmonth, Bob (ed.) 2016 Coal Operators' Conference. Wollongong, Australia 10 - 12 Feb 2016 Wollongong, Australia.
An elasto-plastic constitutive model for rock joints under cyclic loading and constant normal stiffness conditions
Nemcik, Jan, Mirzaghorbanali, Ali and Aziz, Naj. 2014. "An elasto-plastic constitutive model for rock joints under cyclic loading and constant normal stiffness conditions." Geotechnical and Geological Engineering: an international journal. 32 (2), pp. 321-335. https://doi.org/10.1007/s10706-013-9716-5
Effects of shear rate on cyclic loading shear behaviour of rock joints under constant normal stiffness conditions
Mirzaghorbanali, Ali, Nemcik, Jan and Aziz, Naj. 2014. "Effects of shear rate on cyclic loading shear behaviour of rock joints under constant normal stiffness conditions." Rock Mechanics and Rock Engineering. 47 (5), pp. 1931-1938. https://doi.org/10.1007/s00603-013-0453-0
A follow up to study the behaviour of cable bolts in shear: experimental study and mathematical modelling
Aziz, Naj, Mirza, Ali, Nemcik, Jan, Rasekh, Haleh and Li, Xuwei. 2016. "A follow up to study the behaviour of cable bolts in shear: experimental study and mathematical modelling." Aziz, Naj and Kininmonth, Bob (ed.) 2016 Coal Operators' Conference. Wollongong, Australia 10 - 12 Feb 2016 Wollongong, Australia.
Load transfer characteristics of plain and spiral cable bolts tested in new non rotating pull testing apparatus
Aziz, Naj, Mirza, Ali, Nemcik, Jan, Li, Xuwei, Rasekh, Haleh and Wang, Gaofeng. 2016. "Load transfer characteristics of plain and spiral cable bolts tested in new non rotating pull testing apparatus." Aziz, Naj and Kininmonth, Bob (ed.) 2016 Coal Operators' Conference. Wollongong, Australia 10 - 12 Feb 2016 Wollongong, Australia.
Numerical modeling of gas flow in coal pores for methane drainage
Taheri, Adel, Sereshki, Farhang, Ardejani, Faramarz Doulati and Mirzaghorbanali, Ali. 2016. "Numerical modeling of gas flow in coal pores for methane drainage." Journal of Sustainable Mining. 15, pp. 95-99. https://doi.org/10.1016/j.jsm.2016.10.001
Behavior of fiber glass bolts, rock bolts and cable bolts in shear
Li, Xuwei, Aziz, Naj, Mirzaghorbanali, Ali and Nemcik, Jan. 2016. "Behavior of fiber glass bolts, rock bolts and cable bolts in shear." Rock Mechanics and Rock Engineering. 49 (7), pp. 2723-2735. https://doi.org/10.1007/s00603-015-0907-7
Factors influencing the quality of encapsulation in rock bolting
Aziz, Naj, Craig, Peter, Mirzaghorbanali, Ali and Nemcik, Jan. 2016. "Factors influencing the quality of encapsulation in rock bolting." Rock Mechanics and Rock Engineering. 49 (8), pp. 3189-3203. https://doi.org/10.1007/s00603-016-0973-5
An experimental study of axial load transfer mechanisms of cable bolts using axially split embedment apparatus
Mirzaghorbanali, A. and Aziz, N.. 2017. "An experimental study of axial load transfer mechanisms of cable bolts using axially split embedment apparatus." Journal of Mining and Environment. 8 (2), pp. 131-137. https://doi.org/10.22044/jme.2016.732