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Publication Number:  FHWA-HRT-14-088    Date:  March 2015
Publication Number: FHWA-HRT-14-088
Date: March 2015

 

Long-Term Pavement Performance Ohio SPS-1 and SPS-2 Dynamic Load Response Data Processing

APPENDIX A. SENSOR LAYOUT IN THE OHIO SPS-1 DLR SECTIONS

Figure 24 through figure 26 show the instrumentation layout in plan and profile view as well as the pavement layer structure in profile view for Ohio SPS-1 test sections.

This illustration shows the instrumentation layout in plan and profile views as well as the pavement layer structure in profile view for test section 390104 Ohio Specific Pavement Studies (SPS)-1. A total of 15 sensors are indicated. The plan view in the top portion of the figure shows 12 sensors in a 22-ft horizontal row on the pavement wheelpath a short distance from the pavement edge. From left to right, the sensors are: two single-layer deflectometers, six alternating transverse and longitudinal strain gauges, two pressure cells, and two additional single-layer deflectometers. The single-layer deflectometers are the peaks of four linear variable differential transformers (LVDTs). The profile view in the bottom portion of the figure shows the four LVDTs extending downward through the pavement and pavement base layer, the six strain gauges embedded in the pavement, and five additional sensors that are not in the plan view. The five additional sensors include two pressure cells embedded just below the pavement base layer and three strain gauges in the pavement base layer.
Figure 24. Illustration. Ohio SPS-1 test section 390104 sensor layout

 

This illustration shows the instrumentation layout in plan and profile views as well as the pavement layer structure in profile view for test section 390108 Ohio Specific Pavement Studies (SPS)-1. A total of 15 sensors are indicated. The plan view in the top portion of the figure shows 12 sensors in a 22-ft horizontal row on the pavement wheelpath a short distance from the pavement edge. From left to right, the sensors are: two single-layer deflectometers, six alternating transverse and longitudinal strain gauges, two pressure cells, and two additional single-layer deflectometers. The single-layer deflectometers are the peaks of four linear variable differential transformers (LVDTs). The profile view in the bottom portion of the figure shows the four LVDTs extending downward through the pavement and pavement base layer, the six strain gauges embedded in the pavement, and five additional sensors that are not in the plan view. The five additional sensors include two pressure cells embedded just below the pavement base layer and three strain gauges in the pavement base layer.
Figure 25. Illustration. Ohio SPS-1 test section 390108 sensor layout

 

This illustration shows the instrumentation layout in plan and profile views as well as the pavement layer structure in profile view for test section 390110 Ohio Specific Pavement Studies (SPS)-1. A total of 15 sensors are indicated. The plan view in the top portion of the figure shows 12 sensors in a 22-ft horizontal row on the pavement wheelpath a short distance from the pavement edge. From left to right, the sensors are: two single-layer deflectometers, six alternating transverse and longitudinal strain gauges, two pressure cells, and two additional single-layer deflectometers. The single-layer deflectometers are the peaks of four linear variable differential transformers (LVDTs). The profile view in the bottom portion of the figure shows the four LVDTs extending downward through the pavement and pavement base layer, the six strain gauges embedded in the pavement, and five additional sensors that are not in the plan view. The five additional sensors include two pressure cells embedded just below the pavement base layer and three strain gauges in the pavement base layer.
Figure 26. Illustration. Ohio SPS-1 test section 390110 sensor layout

 

 

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