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A platform for research: civil engineering, architecture and urbanism
Sensor selection, installation, and survivability in a geosynthetic-reinforced flexible pavement
Seventeen instrumented test sections were constructed on a geosynthetic-reinforced flexible pavement in Arkansas to determine the benefits of geosynthetic inclusions and collect dynamic response data from traffic loads to support a mechanistic-empirical pavement design procedure. A total of 129 sensors were installed to acquire dynamic measurements of stress and strain as well as static measurements of moisture content, pore pressure, temperature, and precipitation. Approximately 94% of the structural gages survived the construction phase, but 82% were still functional by the end of the test interval. Over 5000 m of cable and 370 m of protective conduit were installed. The purpose of this paper is to: (1) summarize the selection and installation criteria for the sensors and data acquisition system; (2) describe the construction procedure and modifications associated with each instrumented pavement layer; (3) detail the construction sequence of the protective pipe network; (4) discuss gage survivability and signal filtering; and (5) display typical response curves. This paper will provide sufficient detail and discuss specific recommendations that can be used by others in future full-scale field studies. While the initial testing program has been completed, the overall results and analysis from this project are beyond the scope of this paper.
Sensor selection, installation, and survivability in a geosynthetic-reinforced flexible pavement
Seventeen instrumented test sections were constructed on a geosynthetic-reinforced flexible pavement in Arkansas to determine the benefits of geosynthetic inclusions and collect dynamic response data from traffic loads to support a mechanistic-empirical pavement design procedure. A total of 129 sensors were installed to acquire dynamic measurements of stress and strain as well as static measurements of moisture content, pore pressure, temperature, and precipitation. Approximately 94% of the structural gages survived the construction phase, but 82% were still functional by the end of the test interval. Over 5000 m of cable and 370 m of protective conduit were installed. The purpose of this paper is to: (1) summarize the selection and installation criteria for the sensors and data acquisition system; (2) describe the construction procedure and modifications associated with each instrumented pavement layer; (3) detail the construction sequence of the protective pipe network; (4) discuss gage survivability and signal filtering; and (5) display typical response curves. This paper will provide sufficient detail and discuss specific recommendations that can be used by others in future full-scale field studies. While the initial testing program has been completed, the overall results and analysis from this project are beyond the scope of this paper.
Sensor selection, installation, and survivability in a geosynthetic-reinforced flexible pavement
Auswahl, Installation und Lebensdauer von Sensoren in einer flexiblen, mit Geotextilien verstärkten Straßendecke
Warren, K.A. (author) / Howard, I.L. (author)
Geosynthetics International ; 14 ; 298-315
2007
18 Seiten, 22 Quellen
Article (Journal)
English
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