Evaluation of the impact of hydrostatic pressure and Lode angle on the strength of the rock mass based on the Hoek–Brown criterion

• Autorzy: Marczak H.

Identyfikatory

DOI

10.1515/sgem-2015-0025

• Języki publikacji: EN

Abstrakty

EN

Determination of the global uniaxial compressive strength of rock mass on the basis of the Hoek–Brown failure criterion requires knowledge of the strength parameters: cohesion and the angle of internal friction. In the conventional method for the determination of these parameters given by Balmer, they are expressed by the minimum principal stress. Thus, this method does not allow for the assessment of an impact of hydrostatic pressure and stress path on the value of cohesion, friction angle and global uniaxial compression of rock mass. This problem can be eliminated by using the Hoek–Brown criterion expressed by the invariants of the stress state. The influence of hydrostatic pressure and the Lode angle on the strength parameters of the rock mass was analysed.

Słowa kluczowe

EN

generalized Hoek–Brown failure criterion; equivalent cohesion; equivalent friction angle; global strength; invariant stress

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2015
• Tom: Vol. 37, nr 2
• Strony: 85--91
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Marczak H.

• Mechanical Faculty, Lublin University of Technology, ul. Nadbystrzycka 36, 20-618 Lublin, Poland

Bibliografia

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