Mejoramiento del trazado geométrico y diseño estructural de pavimento de la vía Cruzpamba ubicada en la parroquia García Moreno, cantón Pelileo, provincia de Tungurahua

Abstract

The Cruzpamba road has serious problems throughout its road design, because it is in precarious conditions, this road connects two rural parishes, Garcia Moreno and El Rosario; with the improvement of this road we seek to benefit the economy of this sector. In order to improve this road, a topographic study was carried out and a 100-meter strip was selected to identify the current conditions of the terrain. The T.P.D.A. was carried out to determine the type of road; a manual count was made during 7 days for 12 hours to obtain the projected T.P.D.A., thus deducing that the road is a class III road according to the M.T.O.P.. Another important aspect is to know the physical and mechanical properties of the soil, several tests were performed such as moisture content, granulometry, Atterberg limits, modified Proctor type B and CBR, concluding that the type of soil in the area is a well graded sand with low plasticity silts according to the AASHTO classification; the CBR is between 11 to 20 percent and it is considered a regular - good quality soil and can be used as subgrade, therefore it does not need improvement, when the soil study was completed, the pavement was designed. Finally, two proposals were made for the geometric design due to the complexity of the terrain in order to select the best option and thus determine the unit price analysis, calculate work volumes and estimate the reference budget.