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Published on: February 13, 2015
Unlocking seismic slope stability for risk assessment
Wang Yiheng1,2, Fadzli Mohamed Nazri1, Ahmad Mohamad El-Maissi1
1School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, Penang 14300, Malaysia.
This study enhances seismic slope stability analysis using an improved Sarma method, providing reliable safety factor calculations for earthquake-prone regions. The Python implementation offers efficient and accurate assessments of rock slope stability.
Area of Science:
- Geotechnical Engineering
- Earthquake Engineering
Background:
- Slope instability is a significant secondary hazard following earthquakes, causing extensive socio-economic damage.
- Accurate seismic slope stability evaluation is crucial for mitigating earthquake-induced risks.
Purpose of the Study:
- To propose an improved Sarma method for precise seismic slope stability assessment.
- To develop and validate a computational framework for estimating seismic forces and safety factors.
Main Methods:
- Utilized limit equilibrium theory with an enhanced Sarma method.
- Developed a Python-based implementation for computational efficiency and reliability.
- Validated the enhanced method against the pseudo-static approach.
Main Results:
- The improved Sarma method demonstrated strong performance in seismic slope stability analysis.
- Key factors influencing stability, including slope characteristics and seismic parameters, were examined.
- Calculated safety factors for seismic rock slope stability were assessed.
Conclusions:
- The developed method provides a reliable tool for evaluating seismic rock slope stability.
- Future research aims to extend the method's applicability to diverse slope types for broader use.
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