Modeling of pavement response using nonlinear cross-anisotropic approach

Autor:	Nak Seok Kim, R.L. Lytton, Jeongho Oh
Rok vydání:	2005
Předmět:	Engineering business.industry Subgrade Structural engineering Granular material Triaxial shear test Stress (mechanics) Nonlinear system Range (statistics) Geotechnical engineering business Material properties Anisotropy Civil and Structural Engineering
Zdroj:	KSCE Journal of Civil Engineering. 9:329-334
ISSN:	1976-3808 1226-7988
DOI:	10.1007/bf02829046
Popis:	The multi-depth deflectometer (MDD) is used to estimate flexible pavement response subjected to permitted overweight truck traffic (gross vehicle weight up to 556 kN). This study focuses on using material constitutive models to assess the most accurate and reliable pavement layer behavior. To obtain stress dependent cross-anisotropic material properties of unbound granular material and intact soils, a modified triaxial test was performed. The obtained material properties were compatible with findings of previous researches. The developed finite element program (NCPA) was used to evaluate deflections under proposed four models and to determine the best model by comparing with field measurement of MDD. As a result, the best comparisons with the measured MDD deflections were achieved when base and subgrade materials were modeled as nonlinear cross-anisotropic by reducing error range significantly.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::369985c03335ac1c409788beeedab1d3 https://doi.org/10.1007/bf02829046 Zobrazit plný text záznamu Full text from SpringerLink