Onset of crack initiation in uniaxial and triaxial compression tests of dolomite samples

• Autorzy: Cieślik J.

Identyfikatory

DOI

10.2478/sgem-2014-0003

• Języki publikacji: EN

Abstrakty

EN

The paper presents results of laboratory investigation and analysis of crack initiation threshold identification of dolomite samples. First, selected methods for determining crack initiation thresholds are briefly described with special attention paid to four methods: crack volume strain method [14], change in Poisson’s ratio [8], lateral strain response method [16], and dilatancy method [4]. The investigation performed on dolomite samples shows that for the uniaxial and conventional triaxial compression tests, the above mentioned methods give quite similar values, except for the crack volume strain method. Crack initiation threshold determined by this method has a distinctively lower value than that obtained by the other methods. The aim of the present paper was to review and assess these methods for identifying crack initiation threshold based on laboratory tests of dolomite samples.

Słowa kluczowe

EN

crack initiation; laboratory investigations; uniaxial compression; triaxial compression

PL

inicjacja pęknięcia; badania laboratoryjne; ściskanie jednoosiowe; ściskanie trójosiowe

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2014
• Tom: Vol. 36, nr 1
• Strony: 23--27
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Cieślik J.

• AGH University of Science and Technology, Department of Geomechanics, Civil Engineering and Geotechnics, Kraków, Poland

Bibliografia

• [1] ANDERSSON C., MARTIN C.D., STILLE H., The Aspo pillar stability experiment: Part II – rock mass response to coupled excavationinduced and thermal-induced stresses, Int. J. Rock Mech. Min. Sci., 46(5), 2009, 865–878.
• [2] BIENIAWSKI Z.T., Mechanism of brittle fracture of rock, Part I – theory of the fracture process, Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 4 (4), 1967a, 395–406.
• [3] BIENIAWSKI Z.T., Mechanism of brittle fracture of rock, Part II – experimental studies, Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 4 (4), 1967b, 407–423.
• [4] BRACE W.F., PAULDING B.W. (Jr.), SCHOLZ C., Dilatancy in the fracture of crystalline rocks, J. Geophys. Res., Vol. 71, 1966, 3939–3953.
• [5] CIEŚLIK J., Results of triaxial compression tests on LGOM sandstone and dolomite in the context of the elastic-plastic constitutive model selection, Archives of Mining Sciences, 52 (3), 2007, 437–451.
• [6] CIEŚLIK J., Plasticity and damage of selected rocks in uniaxial and triaxial compression tests, Rozprawy – Monografie nr 286, Wydawnictwa AGH, 2013 (in Polish).
• [7] DIEDERICHS M.S., KAISER P.K., EBERHARDT E., Damage initiation and propagation in hard rock tunnelling and the influence of near-face stress rotation, Int. J. Rock Mech. Min. Sci., 41, 2004, 785–812.
• [8] DIEDERICHS M.S., The 2003 Canadian Geotechnical Colloquium: mechanistic interpretation and practical application of damage and spalling prediction criteria for deep tunnelling, Can. Geotech. J., 44, 2007, 1082–1116.
• [9] EBERHARDT E., STEAD D., STIMPSON B., READ R.S., Identifying crack initiation and propagation thresholds in brittle rock, Can. Geotech. J., 1998, 35, 222–233.
• [10] HALLBAUER D.K., WAGNER H., COOK N.G.W., Some observations concerning the microscopic and mechanical behaviour of quartzite specimens in stiff, triaxial compression tests, Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 1973, 20, 713–726.
• [11] KWAŚNIEWSKI M., Dylatancja jako zwiastun zniszczenia skały. Cz. I. Fizykalna istota zjawiska dylatancji, Przegląd Górniczy, 1986a, 42, 2, 42–49.
• [12] KWAŚNIEWSKI M., Dylatancja jako zwiastun zniszczenia skały, Cz. II. Mechanizm zjawisk poprzedzających zniszczenie, Przegląd Górniczy, 1986b, t. 42, nr 6, 184–190.
• [13] KWAŚNIEWSKI M., Mechanical behavior of rocks under true triaxial compression conditions - volumetric strain and dilatancy, Arch. Min. Sci., 2007, Vol. 52, No. 3, 409–435.
• [14] MARTIN C.D., CHANDLER N.A., The progressive fracture of Lac du Bonnet granite, Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 1994, 31(6), 643–659.
• [15] MOORE D.E., LOCKNER D.A., The role of microcracking in shear-fracture propagation in granite, J. Struct. Geol., 1995, 17, 5–114.
• [16] NICKSIAR M., MARTIN C.D., Evaluation of Methods for Determining Crack Initiation in Compression Tests on Low-Porosity Rocks, Rock Mech. Rock Eng., 2012, 45, 607–617.
• [17] PATERSON M.S., WONG T.-F., Experimental Rock Deformation – The Brittle Field, (2nd ed.), Springer Verlag, Berlin Heidelberg, 2005.
• [18] WONG T.-F., Micromechanics of faulting in westerly granite, Int. J. Rock Mech. Min. Sci. &Geomech. Abstr., 1982, Vol. 19, Iss. 2, 143–160.