An analytical study of active earth pressure in cohesive soil considering interlayer shear stress
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View abstract on PubMed
Summary
This summary is machine-generated.This study introduces a new method to calculate active earth pressure in clay soils, incorporating interlayer shear stress. The advanced model offers a more accurate computational tool for geotechnical engineering applications.
Area Of Science
- Geotechnical Engineering
- Soil Mechanics
- Structural Geology
Background
- Interlayer shear stress significantly affects earth pressure distribution in cohesive soils.
- Existing theories lack comprehensive integration of interlayer shear stress in active earth pressure calculations.
Purpose Of The Study
- To develop a robust model for computing active earth pressure in clay soils.
- To incorporate interlayer shear stress, displacement effects, soil arching, and sliding surface morphology.
- To provide a precise computational tool for practical engineering applications.
Main Methods
- Derived a formula for interlayer shear stress using the Mohr stress circle for clay soils.
- Formulated a model integrating interlayer shear stress and other key factors.
- Developed a numerical iteration framework for explicit solutions.
- Validated the model against Rankine solution, analytical solutions, and model tests.
Main Results
- The new method shows high congruence with experimental findings (discrepancies ≤ 9.8%).
- The numerical iteration framework successfully calculates active earth pressure strength, resultant force, and point of action.
- The model accurately predicts earth pressure from static to ultimate active states, including non-limit active states.
Conclusions
- The developed model significantly enhances the accuracy of active earth pressure calculations in cohesive soils.
- This approach refines the theoretical framework for earth pressure computations.
- Offers a more precise and reliable tool for geotechnical engineers.
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