Diseño de un corredor peatonal en suelos blandos para el proyecto brisas del Pacífico Guapi - Cauca

Abstract

In this work, it was obtained the geotechnical properties of the soils present in the pedestrian corridor of 1.0 km, which was designed to allow the mobility of the habitants of the Brisas del Pacífico housing project. The geotechnical properties of the soils were determined from physical characterization tests such as natural humidity, Particle-Size Analysis, limits of consistency, specific gravity and unit weight.

The mechanical properties were obtained from tests of simple compression, direct shear and one-dimensional consolidation, which was used to determine the settlements generated by the loads projected by the construction of the track. Because the soil in the study area is soft as reported by the SPT (n <4) trials presented below, a geotechnical solution for settlement control was implemented. After obtaining the characteristics of the soil, different design scenarios were proposed, the first scenario consists of the application of an overload corresponding to the structure of the pavement and the traffic that will circulate by allowing the soil to consolidate, the second is to add to the first scenario vertical geodrains to accelerate the consolidation time. The third scenario is to reinforce the subgrade with a woven geotextile to control soil deformations. The three scenarios were evaluated technically, environmentally and economically, from which it was obtained that the solution with better viability was the use of an overload with vertical geodrains. This solution presented technical results that prevented the deformation of the pavement structure.