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Safety Risk Analysis of a New Design of Basalt Fiber Gabion Slope Based on Improved 3D Discrete Element Method and
Jianjian Dai1, Xiangyang Xu1, Hao Yang2
1School of Rail Transit, Soochow University, Suzhou 215006, China.
Sensors (Basel, Switzerland)
|May 28, 2022
Summary
This study enhances traditional gabion structures with basalt fiber reinforcement (BFR) for improved slope protection. The new BFR gabions significantly increase safety factors, reducing risks in retaining walls and slope applications.
Area of Science:
- Geotechnical Engineering
- Materials Science
Background:
- Gabion structures are widely used for retaining walls and slope protection.
- Traditional gabions face limitations in stability and reinforcement.
Purpose of the Study:
- To analyze the safety risks of a novel gabion structure incorporating basalt fiber reinforcement (BFR).
- To evaluate the stability and performance enhancement offered by BFR in gabion applications.
Main Methods:
- Calibrated micro-parameters of BFR and soil using 3D discrete element method (DEM) post-tensile testing.
- Investigated gabion unit mechanical properties via a refined model and uniaxial compression tests.
- Developed a simplified method for simulating seepage effects and analyzed stress conditions and sliding displacement.
Main Results:
- Basalt fiber reinforcement (BFR) exhibited a tensile strength of 68.22 MPa.
- The safety factor of the gabion structure increased by 25.68% with the integration of BFR.
- Observed damage primarily involved BFR bending and gabion unit dislocation, with no slope slippage.
Conclusions:
- The novel BFR-enhanced gabion structure demonstrates reduced safety risks compared to traditional gabions.
- This innovative structure is suitable for popularization in retaining wall and slope protection applications.
- BFR integration offers a significant improvement in the mechanical stability and safety of gabion systems.
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