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Related Experiment Video

Updated: May 10, 2025

Determination of Aggregate Surface Morphology at the Interfacial Transition Zone ITZ
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Critical sliding surface location method for anisotropic slope based on anisotropic yield criterion and optimization

Zhenfu Zhang1, Yongjun Zhang1, Sijia Liu2

  • 1School of Civil Engineering, Qingdao University of Technology, Qingdao, 266520, China.

Scientific Reports
|April 22, 2025
PubMed
Summary

This study presents a new method for slope stability analysis, accurately identifying critical slip surfaces in heterogeneous slopes with anisotropic soil properties. The approach enhances understanding of anisotropy

Keywords:
AnisotropyCritical slip surfaceSafety factorSlope stability

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Area of Science:

  • Geotechnical Engineering
  • Soil Mechanics
  • Computational Geomechanics

Background:

  • Identifying the critical slip surface is a complex challenge in slope stability analysis.
  • Heterogeneous slopes and anisotropic soil properties add significant complexity to stability assessments.
  • Existing methods may not fully capture the behavior of anisotropic soils in complex slope geometries.

Purpose of the Study:

  • To propose a novel method for determining the critical slip surface in heterogeneous slopes considering soil anisotropy.
  • To establish a robust framework for slope stability analysis integrating advanced constitutive models and optimization techniques.
  • To investigate the influence of anisotropy on slope stability and failure mechanisms.

Main Methods:

  • Development of a generalized soil anisotropic constitutive model.
  • Establishment of a global equilibrium framework for slope analysis.
  • Integration of global optimization techniques with the Morgenstern-Price method to define the optimization objective function.

Main Results:

  • The proposed method accurately determines critical slip surfaces in heterogeneous, anisotropic slopes.
  • Comparative analysis validates the method's reliability and applicability against classical slope cases and improved log-spiral methods.
  • The study quantifies the impact of anisotropy-related parameters on slope stability and failure modes.

Conclusions:

  • The developed method offers a reliable approach for critical slip surface identification in complex slope scenarios.
  • Accounting for soil anisotropy is crucial for accurate slope stability assessment.
  • The findings provide valuable insights for geotechnical engineers designing and analyzing slopes.