Cyclic CBR as an alternative method for the determination of resilient modulus in soft subgrade soils

Keywords: cyclic CBR, equivalent modulus, resilient modulus, subgrade

Abstract

The cyclic CBR (cCBR) can be an alternative test method to estimate the Resilient Modulus (Mr) of soft subgrade soils, in a relatively inexpensive and simple way. This paper presents a comparison of the results obtained for Mr, following the test standard of the Instituto Nacional de Vías, INV-156-13 “Resilient Modulus of Soils and Aggregates”, whose reference standard is the AASHTO T 307 Standard Method of Test for Determining the Resilient Modulus of Soils and Aggregate Materials), with the Equivalent Modulus (E_equi) of undisturbed clay samples from the lake area of the city of Bogota, obtained in the cCBR test, mainly adapted from the proposal presented by researchers from the University of Delft. The results show that the cCBR test is presented as a viable option to estimate the Mr from the Eequi of soft clays, with a reliability of 95 %.

Author Biographies

Diana Carolina Bojacá Torres, Escuela Colombiana de Ingeniería Julio Garavito

Máster en ingeniería civil, ingeniera civil, ingeniera industrial. Profesora, Bogotá, Colombia.

Sandra Ximena Campagnoli Martínez, Escuela Colombiana de Ingeniería Julio Garavito

Especialista en geotecnia, ingeniera civil. Profesora, Bogotá, Colombia.

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Author Biographies

Diana Carolina Bojacá Torres, Escuela Colombiana de Ingeniería Julio Garavito

Máster en ingeniería civil, ingeniera civil, ingeniera industrial. Profesora, Bogotá, Colombia.

Sandra Ximena Campagnoli Martínez, Escuela Colombiana de Ingeniería Julio Garavito

Especialista en geotecnia, ingeniera civil. Profesora, Bogotá, Colombia.

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How to Cite
Bojacá Torres, D. C., & Campagnoli Martínez, S. X. . (2022). Cyclic CBR as an alternative method for the determination of resilient modulus in soft subgrade soils. Ciencia E Ingenieria Neogranadina, 32(2), 85–98. https://doi.org/10.18359/rcin.5896
Published
2022-12-26
Section
ARTICLES