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Análisis de estabilidad del refuerzo de inyección de presas basado en FLAC3D
1Engineering Department of Huanghe University of Science and Technology, Zhengzhou, China.
PloS one
|February 27, 2026
Resumen
La inyección de presas peligrosas de embalses mejora la estabilidad al formar una cortina de inyección, reduciendo las zonas plásticas en un 23%. Esta simulación numérica proporciona información crucial para las evaluaciones de seguridad de presas.
Área de la Ciencia:
- Ingeniería Geotécnica
- Ingeniería Civil
- Seguridad de Presas
Sus antecedentes:
- Las presas de embalses presentan riesgos significativos para la seguridad, lo que requiere inyección y fortalecimiento urgentes.
- La evaluación de la estabilidad post-inyección de presas reforzadas es fundamental para prevenir fallos.
Objetivo del estudio:
- Analizar la estabilidad de una presa de embalse peligrosa después del refuerzo de inyección utilizando simulaciones numéricas.
- Evaluar la efectividad de diferentes mecanismos de inyección (penetración, compresión, división) para mejorar la integridad de la presa.
Principales métodos:
- Descripción de los mecanismos de acción de la inyección por penetración, compresión y división.
- Análisis de simulación numérica utilizando el programa de diferencias finitas FLAC3D.
- Análisis de estabilidad del refuerzo de control de filtraciones para una presa peligrosa específica.
Principales resultados:
- Formación de una zona completa de cortina de inyección dentro del cuerpo de la presa después de la inyección.
- Se observó un doble ajuste del estrés de la presa y una disminución del 23% en el área de la zona plástica.
- Mejora significativa de la estabilidad general del cuerpo de la presa.
Conclusiones:
- El refuerzo por inyección mejora eficazmente la estabilidad y la seguridad de las presas de embalses peligrosas.
- La simulación numérica proporciona una herramienta valiosa para analizar y evaluar la seguridad de proyectos similares de refuerzo de presas.
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