REPEATABILITY AND REPRODUCIBILITY STUDY OF PAVEMENT BENDING SUBSIDENCE DETECTION BASED ON FWD
In order to further improve the accuracy of the pavement bending settlement test data and assess-ment results,this study collects the pavement bending settlement data through the falling hammer bending device(FWD),and analyzes the repeatability and reproducibility of the test data by using the Measurement System Anal-ysis(MSA)method.Based on the analyzed results,we further discuss the influencing factors and control measures during the on-site inspection of pavement bending and settlement.The research results show that the instrumentation is the main variation of the measurement data,but the variation can be accepted by improving the system.The results of the study provide guidance for the next step in the standardization of pavement bending and settlement testing.
measurement system analysis method(MSA)repeatabilityreproducibility
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