Caso real de colapso de muro pantalla en fase de ejecución, influencia geotécnica de las variables del entorno y de estudio en el criterio de diseño y dimensionado: acciones ejecutadas

The collapse of a wall display during the execution of the economic and technical means a large-scale impact. In this paper we present the description of the lesions affected the days before the collapse and throughout the collapse. As of that incident corresponds primary objective the assessment of the causes that gave rise to be able to contribute to the non-attendance of these new times. The methodology to be applicable, in chronological analysis of the parameters involved in the calculation of the dimensioning and execution diaphragm wall are derived manner. The parameters that influence mostly are extracted from the original geotechnical and in this case were scarce and optimistic. From this it is derived that the designer must analyze and properly weigh the intervention of these parameters in later design and calculation of the structure. The geotechnical study reflects average values of the geotechnical parameters, but the designer must consider the characteristic values well or apply rebates. The latter greatly influences the data entry software. The design of the structure that is, encasing, number of provisional anchors, etc. It is essential to increase safety reserve structure and if this is not successful, makes the probability of collapse increases. The results obtained show that you have considered characteristic geotechnical parameters instead of mean values in the calculations, the safety factors have been sufficient and would have prevented the collapse. The technical solution to a casualty is complex and laborious high economic cost as well as alters other structural solutions already defined as the foundation, due to the alteration of the surrounding terrain.