New method for rock qualification

J�nos, L?rincz; Em?ke, Imre; Phong. Q, Trang; Mikl�s, G�los; L�szl�, K�rp�ti; Istv�n, Talata; Barreto Gonzalez, Daniel; Casini, Francesca; Guida, Giulia

Abstract

A new method was elaborated to characterize the breakage properties of rocks. A crushing test was suggested and parallel tests were performed on sand-pairs with different parent rocks, using identical initial gradings. The data were analysed using the grading entropy theory, the grading curve variation was represented in the entropy diagram (with a coordinate uniquely related to the mean log diameter). The results with various rocks with the same conditions indicated the same en-tropy path, only the speed was different. Based on this, a new testing method can be suggested. As a by-product of the result, it is shown that the breakage path and the internal stability of soils seem to be linked. The discontinuity of the normalisedentropy path at the appearance of some finer fractions drifts out the normalised entropy path from the unstable part of the diagram. A second consequence is the explanation why fractal distribution with fractal dimension n

Citation

János, L., Emőke, I., Phong. Q, T., Miklós, G., László, K., István, T., Barreto Gonzalez, D., Casini, F., & Guida, G. (2018, April). New method for rock qualification. Presented at Mérnökgeológia - Kőzetmechanika 2018 (Engineering Geology and Rock Mechanics Congress 2018)

• Presentation Conference Type: Conference Paper (published)
• Conference Name: Mérnökgeológia - Kőzetmechanika 2018 (Engineering Geology and Rock Mechanics Congress 2018)
• Start Date: Apr 19, 2018
• End Date: Apr 19, 2018
• Acceptance Date: Apr 19, 2018
• Publication Date: Apr 19, 2018
• Deposit Date: Apr 20, 2018
• Publicly Available Date: Apr 20, 2018
• Pages: 263-274
• Book Title: Mérnökgeológia-Kőzetmechanika 2018
• Keywords: rock qualification, breakage, fractal distribution, internal stability,
• Public URL: http://researchrepository.napier.ac.uk/Output/1162045
• Related Public URLs: http://mernokgeologia.bme.hu/ocs/index.php/konferencia/MGEO2018
• Contract Date: Apr 20, 2018