FWD的沥青路面弯沉盆曲线拟合分析
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摘要
基于FWD路表弯沉盆特征分析相应数学模型拟合条件,分析Sigmoid函数曲线与其相似型,并将该模型用于拟合不同路面状况的检测弯沉盆,分析拟合不同路面的精度变化,寻求了可以减少理论弯沉盆和实测弯沉盆差异的方法,得出函数Sigmoid曲线用于拟合路面弯沉盆的精度随着路面性能状况PCI的值变大而递增,曲线的形态随PCI差值变化增大而陡增的特点,这些规律将为今后路面健康管理评价提供借鉴.
Based on the fitting characteristics of FWD road table bending basin,the corresponding mathematical model fitting condition is analyzed,and the Sigmoid function curve is similar to that of the model. The model is used to fit the test pendulum with different pavement conditions,and the accuracy of fitting different pavement The results show that the Sigmoid function curve can be used to fit the accuracy of the pavement deflection and the performance of the pavement performance is proportional to the value of the PCI. The shape of the curve is proportional to the difference The greater the value of the sudden increase in the characteristics of these laws will be the future of road health management evaluation to provide reference.
Based on the fitting characteristics of FWD road table bending basin,the corresponding mathematical model fitting condition is analyzed,and the Sigmoid function curve is similar to that of the model. The model is used to fit the test pendulum with different pavement conditions,and the accuracy of fitting different pavement The results show that the Sigmoid function curve can be used to fit the accuracy of the pavement deflection and the performance of the pavement performance is proportional to the value of the PCI. The shape of the curve is proportional to the difference The greater the value of the sudden increase in the characteristics of these laws will be the future of road health management evaluation to provide reference.
引文
[1]孙艳红.基于落锤式弯沉仪(FWD)动态数据的路面模量反演方法[J].土木工程学报,2002,35(3):106-110.
[2]谢兆星,丛林,郭忠印.基于FWD弯沉盆参数的沥青路面土基模量评价方法研究[J].公路交通科技,2009,26(12):28-31.
[3]朱亚辉.基于FWD弯沉盆参数的沥青路面刚度系数反算研究[D].华南理工大学硕士学位论文. 2016:12-29.
[4]邱欣,杨青,游庆龙.基于FWD动态弯沉盆参数的沥青路面模量反演分析[J].长安大学学报(自然科学版),2013,33(06):42-48.
[5]唐昱.沥青路面结构层参数对路表弯沉盆影响分析[J].交通科学与工程,2015,31(01):27-32.
[6]咸红伟,张肖宁.无损检测在沥青路面施工均匀性评价中的应用[J].中外公路,2010,30(05):91-95.
[7]景凤英.基于旧沥青路面结构强度评价的FWD弯沉检测技术研究[J].华东公路,2017,233(1):102-104.
[8]游庆龙,王随柱,贾玲,等. FWD路面弯沉数据筛选方法[J].江苏大学学报(自然科学版),2015,36(06):711-715.
[9]杨庆振,马士杰. FWD弯沉盆几何参数与路面结构强度关系分析[J].山东交通科技,2015,(05):61-64.
[10]吴志强.基于FWD的沥青混凝土路面结构破坏评价方法[J].城市道桥与防洪,2014,(08):30-32.
[2]谢兆星,丛林,郭忠印.基于FWD弯沉盆参数的沥青路面土基模量评价方法研究[J].公路交通科技,2009,26(12):28-31.
[3]朱亚辉.基于FWD弯沉盆参数的沥青路面刚度系数反算研究[D].华南理工大学硕士学位论文. 2016:12-29.
[4]邱欣,杨青,游庆龙.基于FWD动态弯沉盆参数的沥青路面模量反演分析[J].长安大学学报(自然科学版),2013,33(06):42-48.
[5]唐昱.沥青路面结构层参数对路表弯沉盆影响分析[J].交通科学与工程,2015,31(01):27-32.
[6]咸红伟,张肖宁.无损检测在沥青路面施工均匀性评价中的应用[J].中外公路,2010,30(05):91-95.
[7]景凤英.基于旧沥青路面结构强度评价的FWD弯沉检测技术研究[J].华东公路,2017,233(1):102-104.
[8]游庆龙,王随柱,贾玲,等. FWD路面弯沉数据筛选方法[J].江苏大学学报(自然科学版),2015,36(06):711-715.
[9]杨庆振,马士杰. FWD弯沉盆几何参数与路面结构强度关系分析[J].山东交通科技,2015,(05):61-64.
[10]吴志强.基于FWD的沥青混凝土路面结构破坏评价方法[J].城市道桥与防洪,2014,(08):30-32.