Estimación de desplazamientos en excavaciones profundas empleadas en infraestructura vial urbana en Bogotá D.C. y su relación con los métodos constructivos

Abstract

This document presents an analysis of the magnitudes of displacements that can occur in an excavation carried out in soft soils under a defined shoring sequence and in construction processes associated with uneven road works, for which two study sites are defined in Bogotá city located specifically on Americas Avenue with 26 street and 94 street with 30, the mechanical behavior of the materials is characterized by secondary information obtained from soil studies and methodological criteria are established for the evaluation of the stresses and deformations presented in the terrain as a result of the variation of the loads in the short and long term, and the behavior in this sense of the limit states of service on the surface and on the walls of the excavation.

For the evaluation of stability analysis, mathematical models associated with traditional and more sophisticated methods are used, as: limit equilibrium and finite elements using computational tools SLIDE and PHASE, comparing the results. Validate the adaptation of the methods to the real characteristics of the subsoil and the influence of the shoring elements and the excavation construction sequence.

Key words:

Excavations, Shoring, Efforts, Deformations, Loads, Construction Sequence, Analysis, Displacement, Soft Soils.