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Updated: Sep 10, 2025
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A Bending Test for Determining the Atterberg Plastic Limit in Soils
Published on: June 28, 2016
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Formulación de curvas de transferencia para cargas inversas basadas en ensayos de interfaz suelo-concreto y sondeos
1Faculty of Civil and Environmental Engineering, Department of Geotechnical and Hydraulic Engineering, Gdańsk University of Technology (GUT), 11/12 Gabriela Narutowicza Street, 80-233 Gdańsk, Poland.
Materials (Basel, Switzerland)
|August 28, 2025
Resumen
Este estudio presenta un nuevo método de prueba de dilatómetro (DMT) para evaluar la interacción pilón-suelo, mejorando las predicciones para pilones de desplazamiento de tornillo bajo carga de reversión en suelos blandos.
Área de la Ciencia:
- Ingeniería geotécnica
- Mecánica del suelo
- Diseño de la fundación
Sus antecedentes:
- El análisis actual de la interacción entre la pila y el suelo a menudo se basa en los datos del Menard Pressuremeter Test (PMT).
- Las funciones de transferencia basadas en la prueba de dilatómetro (DMT) para el diseño de pilas están poco desarrolladas.
- La predicción precisa del comportamiento de la pila bajo carga inversa es crucial, pero a menudo se pasa por alto.
Objetivo del estudio:
- Introducir y validar un nuevo método para la evaluación de la interacción entre la pila y el suelo utilizando únicamente los resultados de la prueba del dilatómetro (DMT).
- Desarrollar funciones de transferencia para el cálculo de la fricción del eje de la unidad en columnas de módulo controlado (CMC) bajo carga de reversión.
- Proporcionar una alternativa práctica y precisa a los métodos basados en PMT y los existentes basados en CPTU para el diseño de pilas.
Principales métodos:
- Parámetros del suelo derivados de la prueba del dilatómetro utilizado (DMT) para el diseño de pilotes.
- Columnas de módulo controlado (CMC) instaladas y sometidas a pruebas de carga en los pantanos de Vístula, Polonia.
- Pruebas de corte directo realizadas en laboratorio que simulan la inversión de la carga en las interfaces suelo-concreto.
Principales resultados:
- El método propuesto basado en DMT muestra una mejor adaptabilidad a las condiciones locales del suelo.
- El modelo proporciona predicciones confiables para el rendimiento de la pila en suelos blandos, especialmente bajo carga inversa.
- Capacidad de carga final similar a la CPT 2012 para la carga inicial y mejor acuerdo para la carga de reversión.
Conclusiones:
- El nuevo método basado en la DMT ofrece un marco sólido para evaluar la interacción entre el suelo y los pilotes, en particular para los escenarios de carga inversa.
- Este enfoque mejora las capacidades de diseño de pilotes en suelos blandos al aprovechar los datos de DMT fácilmente disponibles.
- El estudio aborda una brecha significativa en la práctica actual de la ingeniería geotécnica para analizar las condiciones de carga complejas.
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