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Home > Archive>Volume 51, Issue 7, 2023 >1085-1093. DOI:10.11908/j.issn.0253-374x.22096
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Total Deflection Ratio and Its Applicability in Void Identification of Airport Rigid Pavement
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1.Key Laboratory of Road and Traffic Engineering of the Ministry of Education， Tongji University， Shanghai 201804， China;2.Key Laboratory of Infrastructure Durability and Operation Safety in Airfield of CAAC， Tongji University， Shanghai 201804， China;3.East China Civil Aviation Engineering Quality Supervision Station， Shanghai 200335， China;4.China Airport Planning and Design Institute Co.，Ltd， Shengyang 110041， China

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V315.11;U416.2

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    Abstract:

    A new deflection index， total deflection ratio（RTD）， was proposed for v oid identification，whose theoretical characteristics were analyzed. To investigate the applicability of RTD in void identification of airport rigid pavement， finite element models were built using Abaqus. The influences of pavement structure parameters， joint load transfer capacity and void parameters on deflection indexes were analyzed. The results show that， compared with the deflection ratio and intercept， RTD has a higher correlation with pavement structure parameters， and a relatively accurate criterion can be established based on the higher correlation. In addition， RTD is sensitive to void parameters and can avoid the coupling effect of joint load transfer capacity and void beneath slab. Overall， RTD is more applicable in the void detecting of airport rigid pavement.

    Reference
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LING Jianming, LIU Hailun, MA Zhenghao, TANG Long. Total Deflection Ratio and Its Applicability in Void Identification of Airport Rigid Pavement[J].同济大学学报(自然科学版),2023,51(7):1085~1093

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  • Received:March 09,2022
  • Online: July 25,2023
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