Results 21 to 30 of about 1,440 (191)
Ultimate state criteria and strength characteristics of the rock massifs being undermined repeatedly
Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2021 Methodological approaches to the selection of ultimate state criteria and strength characteristics of the repeatedly undermined rock massifs were developed.
S. A. Chizhik +4 more
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Analysis of plastic zones in surrounding rocks around a circular tunnel considering the effect of intermediate principal stress and heterogeneity [PDF]
MATEC Web of Conferences, 2019 Based on a modified Mohr-Coulomb criterion with a non-uniform coefficient, a calculation method of plastic zone boundary of surrounding rocks in a circular tunnel in non-uniform stress field is established.
Deng Shuxin +5 more
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3D limit analysis of rock slopes based on equivalent linear failure criterion with tension cut-off
Journal of Rock Mechanics and Geotechnical Engineering, 2023 Hoek-Brown (HB) failure criterion is widely used to predict the strength of intact or heavily jointed rock mass. For stability analysis of rock slopes governed by the HB failure criterion, the equivalent linearity to Mohr-Coulomb (MC) criterion is often ...
Zhibin Sun +4 more
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Considerations on elliptical failure envelope associated to Mohr-Coulomb criterion
IOP Conference Series: Materials Science and Engineering, 2016 Mohr-Coulomb theory is mostly used in civil engineering as it is suitable for soils, rock, concretes, etc., meaning that the theory is generally used for brittle facture of the materials, but there are cases when it matches ductile behaviour also. The failure envelope described by the Mohr-Coulomb criterion is not completely accurate to the real yield ...
A M Comanici, P D Barsanescu
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Energies, 2019 This study presents a new interface for wellbore stability analysis, which visualizes and quantifies the stress condition around a wellbore at shear and tensile failure.
Jihoon Wang, Ruud Weijermars
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A new approach for the fracture grouting pressure in soil mass
Advances in Mechanical Engineering, 2018 This study focuses on analytical solutions of the fracture grouting pressure. Based on the cavity expansion and fracture grouting mechanism, the small deformation in the elastic zone, large deformation in the plastic zone, and non-associated flow rules ...
Zhi-bin Wang, Jin-feng Zou, Hai Yang
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Mathematical modeling of materially nonlinear problems in structural analyses, Part I: Theoretical fundamentals [PDF]
Facta Universitatis. Series: Architecture and Civil Engineering, 2010 Material models describe the way they behave when loaded. The paper presents the development of the model beginning with the simplest linear-elastic and rigid-plastic ones.
Bonić Zoran +2 more
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Advances in Civil Engineering, 2019 To improve the resources’ recovery ratio and the economic benefits of open-pit mines, the development of highwall mining is used to exploit residual coal.
Rui Wang +4 more
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A state parameter-dependent constitutive model for sands based on the Mohr-Coulomb failure criterion
Computers and Geotechnics, 2022 Experimental data have demonstrated that a strong relationship exists between the state parameter and the peak strength and dilatancy characteristics of sands. This paper proposes a way of reproducing this behaviour using a modified Mohr-Coulomb failure criterion, which retains its simplicity while improving substantially its modelling capabilities ...
Taborda, D +2 more
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Failure Criteria of Gas-Infiltrated Sandy Shale Based on the Effective Stress Principle
Energies, 2016 Pore gas has a significant influence on rock strength. This study performed triaxial compression tests of gas-infiltrated sandy shale samples to investigate the strength characteristics under gas pressures of 0 and 2 MPa. The effective stress coefficient
Wenpu Li, Dongming Zhang, Minghui Li
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