Análisis de Estabilidad de Taludes mediante técnicas de modelación numérica en 3D utilizando Plaxis 3D Foundation
Fecha
2014-06-26
Autores
Azorín Cruz, Reinier
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Editor
Universidad Central "Marta Abreu" de las Villas
Resumen
La presente tesis parte de un resumen del estado del arte del análisis de estabilidad de taludes, haciendo énfasis en los principales métodos que se han ido desarrollando a lo largo del tiempo y en qué consisten los mismos. Luego se da un bosquejo a programas cuyas finalidades son las modelaciones de estructuras de tierra para analizar el comportamiento de las mismas.
Se escoge un software con el cual se realizaron los estudios de este trabajo y se expone el porqué de la elección, guiada fundamentalmente por la posibilidad del programa de analizar los resultados en 2D y en 3D. Mediante el mismo se referencia la forma de modelar taludes haciendo énfasis en cada una de las fases de la modelación de la geometría y de los materiales como aspecto de especial cuidado. Luego se dieron a conocer los resultados de las corridas del programa, viendo los datos que ofrece según lo que se desea analizar del comportamiento de la estructura ante las condiciones impuestas.
A modo de implementar lo referido con anterioridad, se trató un ejemplo real de un talud que colapsó. Este es el caso del talud de ¨La Jardinera¨, situado al Noreste del Edificio Principal o Centro de Descanso “Kurhotel” del Complejo Turístico Topes de Collantes, Trinidad, Provincia de Sancti Spíritus. De este se analizaron los datos ofrecidos por el último Informe Ingeniero – Geológico que se realizó del área, haciendo énfasis en los estudios topográficos, geológicos y, en forma de conclusiones, las principales causas del fallo de la masa.
Por último se analizaron los resultados obtenidos por el programa Plaxis y se compararon con los del informe referido anteriormente, sobre estas comparaciones se hicieron valoraciones.
Para tener una idea de cuan acertado o no fueron los resultados de Plaxis, se compararon los mismos con un modelo corrido por el programa computacional GeoStudio 2007, ya que este goza de cierta confianza en cuanto a análisis de estabilidad de taludes se trata. Se extrajeron conclusiones positivas de las comparaciones entre los resultados de ambos programas.
The present thesis is based on the state of the art of the analysis of the stability of slopes, making a significant emphasis on the main methods that have been developed throughout time and what those methods consist of. It also gives an outlook of the programs aimimg the modelling of ground structures in order to analyze their behavior. A software was used by means of which the studies of this work were carried out and the reasons why it was chosen, mainly due to the possibility of this program to analyze the results in 2D and 3D. By means of this, the way of modelling slopes is fully explained by taking into account and emphasizing with a lot of care on the different stages of the modelling of the Geometry and the materials to be used. Besides the results of the program runnings were reported and all the data derived from them was collected and analyzed according to the parameters established for the analysis in respect to the behavior of the structure above all the imposed conditions. Regarding the implementation of the procedures mentioned formerly, a real example of a slope that collapsed was taken. This is the case of the slope called LA JARDINERA which is located to the northeast of the Main Building or Resting Center called KURHOTEL, pertaining to the tourist resort TOPES DE COLLANTES in Trinidad, province of Sancti-Spiritus. All the data collected in the last Geological-Engineering inform that was made in the area was analyzed, making a special emphasis on the survey measurements, geological studies and as a way of conclusions, the main causes of the mass failure. Moreover, the results obtained from the program PLAXIS were analyzed and they were compared with the results of the report mentioned formerly. Valuations about these comparisons were made. To have an idea about whether the PLAXIS results were accurate or not, they were compared with the results of the running model of the computer program GeoStudio 2007 since it is reliable in reference to the stability of slopes. Positive conclusions were obtained when the results of both programs were compared.
The present thesis is based on the state of the art of the analysis of the stability of slopes, making a significant emphasis on the main methods that have been developed throughout time and what those methods consist of. It also gives an outlook of the programs aimimg the modelling of ground structures in order to analyze their behavior. A software was used by means of which the studies of this work were carried out and the reasons why it was chosen, mainly due to the possibility of this program to analyze the results in 2D and 3D. By means of this, the way of modelling slopes is fully explained by taking into account and emphasizing with a lot of care on the different stages of the modelling of the Geometry and the materials to be used. Besides the results of the program runnings were reported and all the data derived from them was collected and analyzed according to the parameters established for the analysis in respect to the behavior of the structure above all the imposed conditions. Regarding the implementation of the procedures mentioned formerly, a real example of a slope that collapsed was taken. This is the case of the slope called LA JARDINERA which is located to the northeast of the Main Building or Resting Center called KURHOTEL, pertaining to the tourist resort TOPES DE COLLANTES in Trinidad, province of Sancti-Spiritus. All the data collected in the last Geological-Engineering inform that was made in the area was analyzed, making a special emphasis on the survey measurements, geological studies and as a way of conclusions, the main causes of the mass failure. Moreover, the results obtained from the program PLAXIS were analyzed and they were compared with the results of the report mentioned formerly. Valuations about these comparisons were made. To have an idea about whether the PLAXIS results were accurate or not, they were compared with the results of the running model of the computer program GeoStudio 2007 since it is reliable in reference to the stability of slopes. Positive conclusions were obtained when the results of both programs were compared.
Descripción
Palabras clave
Estabilidad de Taludes, Técnicas de Modelación Numérica en 3D, Plaxis 3D Foundation