A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Development of Design Charts for Unpaved Roads Using Naue Geosynthetics, Final Project Report
Current design procedures for subgrade stabilization are typically expressed in terms of design charts that provide the thickness of compacted aggregate required for unpaved roads as a function of subgrade strength for a road with and without a geosynthetic. Most design charts are based on bearing capacity considerations and do not directly account for the influence of traffic passes and deformation response (i.e. rutting). In this project, design charts for NAUE geosynthetic (geogrid) reinforced haul roads are developed based on mechanistic-empirical design principles. Perkins et al. (2004) developed a mechanistic-empirical design solution for base-reinforced flexible pavements. This design solution uses components for the conventional pavement materials from NCHRP Project 1-37a (NCHRP 2004), which serves as the basis for the new AASHTO mechanistic-empirical design guide. The design solution developed for reinforced pavements uses a finite element model to calculate pavement response and empirical damage models to relate strain-response to long term rutting.
Development of Design Charts for Unpaved Roads Using Naue Geosynthetics, Final Project Report
Current design procedures for subgrade stabilization are typically expressed in terms of design charts that provide the thickness of compacted aggregate required for unpaved roads as a function of subgrade strength for a road with and without a geosynthetic. Most design charts are based on bearing capacity considerations and do not directly account for the influence of traffic passes and deformation response (i.e. rutting). In this project, design charts for NAUE geosynthetic (geogrid) reinforced haul roads are developed based on mechanistic-empirical design principles. Perkins et al. (2004) developed a mechanistic-empirical design solution for base-reinforced flexible pavements. This design solution uses components for the conventional pavement materials from NCHRP Project 1-37a (NCHRP 2004), which serves as the basis for the new AASHTO mechanistic-empirical design guide. The design solution developed for reinforced pavements uses a finite element model to calculate pavement response and empirical damage models to relate strain-response to long term rutting.
Development of Design Charts for Unpaved Roads Using Naue Geosynthetics, Final Project Report
B. R. Christopher (author)
2009
44 pages
Report
No indication
English
Highway Engineering , Construction Equipment, Materials, & Supplies , Reinforcing materials , Design charts , Unpaved roads , Geotextiles , Material testing , Model calibration , Tables (Data) , Figures , Geosynthetics , Pavements , Naue geosynthetics , Mechanistic-empirical design principles , M-E design model
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