Estructuras de contención construidas a partir de barras de acero o tubos inyectados
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Vélez Velásquez, Pablo
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Tipo de contenido
Trabajo de grado - Maestría
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EspañolFecha de publicación
2018-04-05
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Los sistemas constructivos de las estructuras de contención convencionalmente utilizadas en la estabilización de los cortes, ofrecen restricciones técnicas cuando se presentan grandes bloques de roca y/o la pendiente del terreno es excesiva para el acceso y ubicación de equipos. En consecuencia, el sistema constructivo más utilizado, se restringe a elementos excavados manualmente, proceso que presenta altos costos y largos e inciertos programas de ejecución. Pensando en estas limitaciones, en la presente investigación se presenta la metodología propuesta con el fin de establecer la viabilidad técnica de estructuras de contención construidas a partir de barras de acero o tubos inyectados, como alternativa en la construcción de estructuras de contención. Con base en ésta, se llevó a cabo la evaluación de la viabilidad técnica de este tipo de estructuras en un caso típico de ladera en el Valle de Aburrá. La viabilidad de utilizar barras de acero o tubos inyectados para la conformación de estructuras de contención, quedó sustentada al corroborar que éstas pueden constituir estructuras con factores de seguridad superiores al factor de seguridad requerido y con comportamientos similares a los experimentados por los sistemas convencionalmente implementados.
Abstract: The construction systems of the earth retaining structures conventionally used in the stabilization of the cuts, offer technical restrictions when large blocks of rock are present and / or the slope of the ground is excessive for the access and location of equipment. Consequently, the most used construction system is restricted to manually excavated elements, a process that presents high costs and long and uncertain execution programs. Considering these limitations, this research presents the proposed methodology in order to establish the technical feasibility of earth retaining structures built from steel bars or injected tubes, as an alternative in the construction of earth retaining structures. Based on this, the evaluation of the technical feasibility of this type of structures was carried out in a typical hillside case in the Valle de Aburrá. The viability of using steel bars or injected tubes for the conformation of earth retaining structures was supported by corroborating that these can constitute structures with safety factors higher than the required safety factor and with behaviors similar to those experienced by conventionally implemented systems.
Abstract: The construction systems of the earth retaining structures conventionally used in the stabilization of the cuts, offer technical restrictions when large blocks of rock are present and / or the slope of the ground is excessive for the access and location of equipment. Consequently, the most used construction system is restricted to manually excavated elements, a process that presents high costs and long and uncertain execution programs. Considering these limitations, this research presents the proposed methodology in order to establish the technical feasibility of earth retaining structures built from steel bars or injected tubes, as an alternative in the construction of earth retaining structures. Based on this, the evaluation of the technical feasibility of this type of structures was carried out in a typical hillside case in the Valle de Aburrá. The viability of using steel bars or injected tubes for the conformation of earth retaining structures was supported by corroborating that these can constitute structures with safety factors higher than the required safety factor and with behaviors similar to those experienced by conventionally implemented systems.