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Journals / International Advanced Researches and Engineering Journal / 2021 / Cilt: 5 - Sayı: 3

Investigation of the availability of a new point load test device in characterization of rocks

Deniz Akbay
Raşit Altındağ
Pages
387–397
Publication Date
2022-10-19
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Besides, while determining the strength tests the stress distributions on the samples were examined with the finite element method.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Difficulties in determining rock properties have led to the developed and increased use of index test methods predicting them.
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Key Findings & Data:For this, laboratory tests were carried out on rocks with different strength values (3 igneous, 1 metamorphic, 3 sedimentary).
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Conclusion & Impact:Besides, while determining the strength tests the stress distributions on the samples were examined with the finite element method.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Natural stone · Point load index · Rock characterization

Abstract

Difficulties in determining rock properties have led to the developed and increased use of index test methods predicting them. Index test methods are mostly simple, cheap, and easy to apply but there are some restrictions due to these specifications. The most used method to determine the strength values of rocks indirectly is the point load index. The main aim of this study is primarily investigating the usability of modified test device instead of classical test device. For this, laboratory tests were carried out on rocks with different strength values (3 igneous, 1 metamorphic, 3 sedimentary). The point load index tests were carried on 15 different classical test devices and on a modified test device which the limitations of the classical test device were eliminated. Analysis of the obtained results was carried out by the simple regression method. It was determined the modified test device can be used reliably instead of the classical test devices. Besides, while determining the strength tests the stress distributions on the samples were examined with the finite element method.

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Cite This Article

Akbay, D., Altındağ, R. (2022). Investigation of the availability of a new point load test device in characterization of rocks. International Advanced Researches and Engineering Journal, Cilt: 5 - Sayı: 3, 387–397. https://ajindex.com/articles/539277

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References (1)

  1. 1 Akbay, D., Designing A New Testing Apparatus For Preventing The Errors in Point Load Index Test, in: Mining Engineering 2018, Süleyman Demirel University: Turkey. p. 201. 2 Andrea, D.V.D., R.L. Fischer, and D.E. Fogelson, Prediction of Compressive Strength From Other Rock Properties. 1965, USA: Department of the Interior, Bureau of Mines. 3 Broch, E. and J. A. Franklin, The Point-Load Strength Test. International Journal of Rock Mechanics and Mining Sciences, 1972. 9: p. 669–697. 4 Bieniawski, Z.T., The point-load test in geotechnical practice. Engineering Geology, 1975. 9(1): p. 1–11. 5 Singh, V.K. and D.P. Singh, Correlation between point load index and compressive strength for quartzite rocks. Geotechnical and Geological Engineering, 1993. 11(4): p. 269–272. 6 Rusnak, J. and C. Mark, Using the Point Load Test To Determine the Uniaxial Compressive Strength of Coal Measure Rock. in Proceedings of the 19th International Conference on Ground Control in Mining, Morgantown, West Virginia., 2000. p. 362–371. 7 Akram, M. and M.Z.A. Bakar, Correlation between uniaxial compressive strength and point load index for salt-range rocks. Pakistan Journal of Engineering and Applied Sciences, 2007. 1(50): p. 1–8. 8 Basu, A. and M. Kamran, Point load test on schistose rocks and its applicability in predicting uniaxial compressive strength. International Journal of Rock Mechanics and Mining Sciences, 2010. 47(5): p. 823–828. 9 Heidari, M., G.R. Khanlari, M.T. Kaveh, and S. Kargarian, Predicting the uniaxial compressive and tensile strengths of gypsum rock by point load testing. Rock Mechanics and Rock Engineering, 2012. 45(2): p. 265–273. 10 Singh, T.N., A. Kainthola, and A. Venkatesh, Correlation between point load index and uniaxial compressive strength for different rock types. Rock Mechanics and Rock Engineering, 2012. 45(2): p. 259–264. 11 Elhakim, A.F., The use of point load test for Dubai weak calcareous sandstones. Journal of Rock Mechanics and Geotechnical Engineering, 2015. 7(4): p. 452–457. 12 Liang, W., K. Hou, Z. Yang, and H. Sun, Evaluation of Uniaxial Compressive Strength by Point Load Tests for Irregular Specimens of Different Rock Types. Electronic Journal of Geotechnical Engineering, 2015. 20(13):, p. 11265–11271. 13 Alitalesh, M., M. Mollaali, and M. Yazdani, Correlation between uniaxial strength and point load index of rocks. in The 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, Fukuoka, Kyushu, Japan, 2015. p. 282–285.