Results 11 to 20 of about 1,440 (191)

Simple Correlation to Evaluate Mohr-Coulomb Failure Criterion Using Uniaxial Compressive Strength

open access: yesJournal of King Saud University: Engineering Sciences, 2002
The evaluation of Mohr-Coulomb failure criterion as well as other mechanical properties for reservoir rocks is essential for well planning, development and characterization of oil and gas reservoirs.
Musaed N.J. Al-Awad
doaj   +2 more sources

Implementation of the Barton–Bandis Nonlinear Strength Criterion into Mohr–Coulomb Sliding Failure Model

open access: yesAdvances in Materials Science and Engineering, 2022
The stability of rocky slope is determined mainly by discontinuities. The discrete element calculation method can be used to analyze the geometric features of rock structures and to deal with the nonlinear deformation and destruction of the rock mass ...
Zhenwei Dai   +4 more
doaj   +2 more sources

Determination of Mohr–Coulomb Failure Criterion of Cement-Treated Materials Using Mixture Design Properties

open access: yesInfrastructures
The compressive, tensile, and shear strength properties of two cement-stabilized soils (CSS) treated with 2% to 4% of cement are investigated for several different curing times at several densities. The measured Mohr–Coulomb (MC) shear strength features,
Mario Castaneda-Lopez   +3 more
doaj   +2 more sources

A Modified Nonlinear Mohr–Coulomb Failure Criterion for Rocks Under High-Temperature and High-Pressure Conditions

open access: yesApplied Sciences
In deep, geologically complex environments characterized by high in situ stress and elevated formation temperatures, the mechanical behavior of rocks often transitions from brittle to ductile, differing significantly from that of shallow formations ...
Zhuzheng Li   +6 more
doaj   +2 more sources

Mohr–Coulomb Failure Criterion [PDF]

open access: yesRock Mechanics and Rock Engineering, 2012
List of Symbols a (m 1)/(m ? 1) b 1/(m ? 1) c Cohesion C0 Uniaxial compressive strength m (1 ? sin /)/(1 sin /) S0 Inherent shear strength (cohesion) T Uniaxial tensile strength T0 Theoretical MC uniaxial tensile strength / Angle of internal friction l = tan / Coefficient of internal friction r Normal stress on plane s Shear stress on plane r1, r2, r3 ...
Labuz, J., Zang, A.
openaire   +5 more sources

Practical application of failure criteria in determining safe mud weight windows in drilling operations

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2014
Wellbore instability is reported frequently as one of the most significant incidents during drilling operations. Analysis of wellbore instability includes estimation of formation mechanical properties and the state of in situ stresses.
R. Gholami   +3 more
doaj   +1 more source

Evaluation of the Effect of Geomechanical Parameters and In Situ Stress on Tunnel Response Using Equivalent Mohr-Coulomb and Generalized Hoek-Brown Criteria

open access: yesGeosciences, 2022
The generalized Hoek-Brown (GHB) failure criterion can estimate the rock mass parameters required for rock mechanics–related analyses such as numerical modeling in geomechanics.
Ali Saeidi   +3 more
doaj   +1 more source

A Simple Three-Dimensional Failure Criterion for Jointed Rock Masses under True Triaxial Compression

open access: yesAdvances in Civil Engineering, 2021
The joint configuration and the intermediate principal stress have a significant influence on the strength of rock masses in underground engineering. A simple three-dimensional failure criterion is developed in this study to predict the true triaxial ...
Yaohui Gao   +3 more
doaj   +1 more source

Failure criterion effect on solid production prediction and selection of completion solution

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2017
Production of fines together with reservoir fluid is called solid production. It varies from a few grams or less per ton of reservoir fluid posing only minor problems, to catastrophic amount possibly leading to erosion and complete filling of the ...
Dariush Javani   +5 more
doaj   +1 more source

Wellbore Breakouts Prediction from Different Rock Failure Criteria

open access: yesJournal of Engineering, 2020
One of the wellbore instability problems in vertical wells are breakouts in Zubair oilfield. Breakouts, if exceeds its critical limits will produce problems such as loss circulation which will add to the non-productive time (NPT) thus increasing loss in ...
Aows Khalid Neeamy, Nada Sabah Selman
doaj   +1 more source

Home - About - Disclaimer - Privacy