journal article·2016-05

Multi-Segment Linear Function Approximation of the Nonlinear Shear Strength Envelope

X. Z. Lei, W. X. Fu, Y. Liao

Strength of Materials· Volume 48· Issue 3
Publisher page

Abstract

In spite of available precise implementations made for the Hoek–Brown (HB) elastic-plastic analysis, most geotechnical engineers and technicians usually apply linear Mohr–Coulomb (MC) criterion for designs of engineering projects. However, no particular linear equation can match the curvature variation of a non-linear HB envelop. This study employs multi-segment linear equations to approximate the HB envelope. The present method can reduce the approximation error when subdividing each material of the analytical mode into several zones appropriate to the actual stress gradient variation of that material. The error estimate and stability analysis for a slope example have validated the present method.
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Research context

OpenAlex topics: Geotechnical Engineering and Analysis · Geotechnical Engineering and Soil Stabilization · Rock Mechanics and Modeling

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References (12)

Show source-provided references
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