刚柔复合式路面动测评价方法与试验研究
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摘要
为了研究一种刚柔复合式路面动测方法的有效性与合理性,在掌握便携式地震波地质分析仪工作原理和测试特点的基础上,假定刚柔复合式路面为双层均匀弹性介质结构,运用瞬态面波频谱分析法研究了Rayleigh面波在此结构中的频散特性,推导了便携式地震波地质分析仪测试刚柔复合式路面动模量与结构厚度的反演方法。通过在典型刚柔复合式路面路表点对点依次采用便携式地震波地质分析仪和落锤弯沉仪法(FWD)测试动模量,承载板测试回弹模量和钻芯测试沥青混凝土(AC)层厚度,建立了各测试指标之间的相关关系。研究结果表明:便携式地震波地质分析仪反演的动模量比静回弹模量高出48.0%~73.4%,且与FWD反演结果具有较好的一致性,同时结构厚度反演结果均在实际厚度80%的置信区间内,所有判定系数均大于0.8,表明应用便携式地震波地质分析仪快速评价刚柔复合式路面动参数是合理、可行的。
In order to investigate the validity and rationality of dynamic testing method for rigidflexible composite pavement,based on the working principle and testing characteristics of portable seismic property analyzer(PSPA),the rigid-flexible composite pavement was assumed to be double uniform elastic medium structure in which the frequency dispersion properties of Rayleigh surface wave were also analyzed by using spectral analysis of surface wave(SASW),and the inversion method for testing dynamic modulus and structure thickness of the rigid-flexible pavement using PSPA was deduced.The point-to-point on-site comparative tests on typical rigidflexible pavement were made to obtain the dynamic modulus by using PSPA and FWD respectively,static resilient modulus by using bearing plate test and the thickness of asphalt concrete(AC)layer by drill core in turn,and the correlations between each measurement index werealso established.The results show that the dynamic modulus inversed by PSPA is 48.0% to 73.4%higher than the static resilient modulus,which has good consistency with that inversed by FWD.Moreover,the thicknesses of AC layer inversed by PSPA are all in 80%confidence interval of the actual thicknesses,and all determination coefficients are more than 0.8,which means that PSPA is a reasonable and feasible method to rapidly evaluate dynamic parameters of the rigid-flexible composite pavement.
In order to investigate the validity and rationality of dynamic testing method for rigidflexible composite pavement,based on the working principle and testing characteristics of portable seismic property analyzer(PSPA),the rigid-flexible composite pavement was assumed to be double uniform elastic medium structure in which the frequency dispersion properties of Rayleigh surface wave were also analyzed by using spectral analysis of surface wave(SASW),and the inversion method for testing dynamic modulus and structure thickness of the rigid-flexible pavement using PSPA was deduced.The point-to-point on-site comparative tests on typical rigidflexible pavement were made to obtain the dynamic modulus by using PSPA and FWD respectively,static resilient modulus by using bearing plate test and the thickness of asphalt concrete(AC)layer by drill core in turn,and the correlations between each measurement index werealso established.The results show that the dynamic modulus inversed by PSPA is 48.0% to 73.4%higher than the static resilient modulus,which has good consistency with that inversed by FWD.Moreover,the thicknesses of AC layer inversed by PSPA are all in 80%confidence interval of the actual thicknesses,and all determination coefficients are more than 0.8,which means that PSPA is a reasonable and feasible method to rapidly evaluate dynamic parameters of the rigid-flexible composite pavement.
引文
[1]李盛,刘朝晖,李宇峙.CRC+AC复合式路面结构层厚度对温度效应及车辙变形的影响[J].中国公路学报,2012,25(1):21-28.LI Sheng,LIU Zhao-hui,LI Yu-zhi.Influence of Structure Layer Thickness of CRC+AC Composite Pavement on Temperature Effect and Rutting Deformation[J].China Journal of Highway and Transport,2012,25(1):21-28.
[2]李盛,刘朝晖,李宇峙,等.刚柔复合式路面层间界面剪切疲劳试验研究[J].土木工程学报,2013,46(7):151-156.LI Sheng,LIU Zhao-hui,LI Yu-zhi,et al.Experimental Study on Interlaminar Shear Fatigue of Rigid-flexible Composite Pavement[J].China Civil Engineering Journal,2013,46(7):151-156.
[3]侯荣国,赵晓晴,王选仓,等.长寿命路面结构设计与寿命预估[J].长安大学学报:自然科学版,2008,28(2):22-25.HOU Rong-guo,ZHAO Xiao-qing,WANG Xuancang,et al.Structure Design and Life Predicting of Long-life Pavement[J].Journal of Chang'an University:Natural Science Edition,2008,28(2):22-25.
[4]JTG D50—2006,公路沥青路面设计规范[S].JTG D50—2006,Specifications for Design of Highway Asphalt Pavement[S].
[5]JTG E60—2008,公路路基路面现场测试规程[S].JTG E60—2008,Field Test Methods of Subgrade and Pavement for Highway Engineering[S].
[6]查旭东.PFWD快速检测路基模量研究[J].公路交通科技,2008,25(1):26-30.ZHA Xu-dong.Study of Rapid Test of Subgrade Modulus with PFWD[J].Journal of Highway and Transportation Research and Development,2008,25(1):26-30.
[7]NAZARIAN S,DESAI R M.Automated Surface Wave Method:Field Testing[J].Journal of Geotechnical Engineering,1993,119(7):1094-1111.
[8]吴世明,曾国熙,陈云敏,等.利用表面波频谱分析测试土层波速[J].地震工程与工程振动,1988,8(4):27-32.WU Shi-ming,ZENG Guo-xi,CHEN Yun-min,et al.Measurement of Wave Velocity of Soil Deposits by Spectral Analysis of Surface Waves[J].Earthquake Engineering and Engineering Vibration,1988,8(4):27-32.
[9]胡家富.Rayleigh波在工程勘察中的解释方法探讨[J].岩土工程学报,1999,21(5):599-602.HU Jia-fu.The Interpretation Method of Rayleigh Wave in Engineering Exploration[J].Chinese Journal of Geotechnical Engineering,1999,21(5):599-602.
[10]唐平祥.瑞利波法在公路地基中的应用[J].公路工程,2012,37(3):209-212.TANG Ping-xiang.Rayleigh Wave Method for Soil Characterization[J].Highway Engineering,2012,37(3):209-212.
[11]CELAYA M,YOUNG G,NAZARIAN S.Portable Seismic Property Analyzer Identification of Asphalt Pavement Layers[R].Lakewood:Federal Highway Administration,2009.
[12]FOTI S,PAROLAI S,ALBARELLO D,et al.Application of Surface-wave Methods for Seismic Site Characterization[J].Surveys in Geophysics,2011,32(6):777-825.
[13]杨博,张锐,査旭东,等.一种路基动模量测试方法[J].岩土力学,2014,35(5):1514-1519.YANG Bo,ZHANG Rui,ZHA Xu-dong,et al.A Method for Testing Dynamic Moduli of Subgrade[J].Rock and Soil Mechanics,2014,35(5):1514-1519.
[14]缪林昌,邱钰.SASW法在基础工程和路基工程中的应用研究[J].岩土力学,2004,25(1):149-152.MIAO Lin-chang,QIU Yu.Research on Application of SASW Method to Foundation and Subgrade Engineering[J].Rock and Soil Mechanics,2004,25(1):149-152.
[15]邵广周.多阶模式瑞利波频散特征与反演研究[D].西安:长安大学,2009.SHAO Guang-zhou.Study on Multiple-mode Dispersion Characteristics of Rayleigh Waves and Its Inversion[D].Xi'an:Chang'an University,2009.
[16]MARPLE J R S L.Computing the Discrete-time“Analytic”Signal via FFT[J].IEEE Transactions on Signal Processing,1999,47(9):2600-2603.
[2]李盛,刘朝晖,李宇峙,等.刚柔复合式路面层间界面剪切疲劳试验研究[J].土木工程学报,2013,46(7):151-156.LI Sheng,LIU Zhao-hui,LI Yu-zhi,et al.Experimental Study on Interlaminar Shear Fatigue of Rigid-flexible Composite Pavement[J].China Civil Engineering Journal,2013,46(7):151-156.
[3]侯荣国,赵晓晴,王选仓,等.长寿命路面结构设计与寿命预估[J].长安大学学报:自然科学版,2008,28(2):22-25.HOU Rong-guo,ZHAO Xiao-qing,WANG Xuancang,et al.Structure Design and Life Predicting of Long-life Pavement[J].Journal of Chang'an University:Natural Science Edition,2008,28(2):22-25.
[4]JTG D50—2006,公路沥青路面设计规范[S].JTG D50—2006,Specifications for Design of Highway Asphalt Pavement[S].
[5]JTG E60—2008,公路路基路面现场测试规程[S].JTG E60—2008,Field Test Methods of Subgrade and Pavement for Highway Engineering[S].
[6]查旭东.PFWD快速检测路基模量研究[J].公路交通科技,2008,25(1):26-30.ZHA Xu-dong.Study of Rapid Test of Subgrade Modulus with PFWD[J].Journal of Highway and Transportation Research and Development,2008,25(1):26-30.
[7]NAZARIAN S,DESAI R M.Automated Surface Wave Method:Field Testing[J].Journal of Geotechnical Engineering,1993,119(7):1094-1111.
[8]吴世明,曾国熙,陈云敏,等.利用表面波频谱分析测试土层波速[J].地震工程与工程振动,1988,8(4):27-32.WU Shi-ming,ZENG Guo-xi,CHEN Yun-min,et al.Measurement of Wave Velocity of Soil Deposits by Spectral Analysis of Surface Waves[J].Earthquake Engineering and Engineering Vibration,1988,8(4):27-32.
[9]胡家富.Rayleigh波在工程勘察中的解释方法探讨[J].岩土工程学报,1999,21(5):599-602.HU Jia-fu.The Interpretation Method of Rayleigh Wave in Engineering Exploration[J].Chinese Journal of Geotechnical Engineering,1999,21(5):599-602.
[10]唐平祥.瑞利波法在公路地基中的应用[J].公路工程,2012,37(3):209-212.TANG Ping-xiang.Rayleigh Wave Method for Soil Characterization[J].Highway Engineering,2012,37(3):209-212.
[11]CELAYA M,YOUNG G,NAZARIAN S.Portable Seismic Property Analyzer Identification of Asphalt Pavement Layers[R].Lakewood:Federal Highway Administration,2009.
[12]FOTI S,PAROLAI S,ALBARELLO D,et al.Application of Surface-wave Methods for Seismic Site Characterization[J].Surveys in Geophysics,2011,32(6):777-825.
[13]杨博,张锐,査旭东,等.一种路基动模量测试方法[J].岩土力学,2014,35(5):1514-1519.YANG Bo,ZHANG Rui,ZHA Xu-dong,et al.A Method for Testing Dynamic Moduli of Subgrade[J].Rock and Soil Mechanics,2014,35(5):1514-1519.
[14]缪林昌,邱钰.SASW法在基础工程和路基工程中的应用研究[J].岩土力学,2004,25(1):149-152.MIAO Lin-chang,QIU Yu.Research on Application of SASW Method to Foundation and Subgrade Engineering[J].Rock and Soil Mechanics,2004,25(1):149-152.
[15]邵广周.多阶模式瑞利波频散特征与反演研究[D].西安:长安大学,2009.SHAO Guang-zhou.Study on Multiple-mode Dispersion Characteristics of Rayleigh Waves and Its Inversion[D].Xi'an:Chang'an University,2009.
[16]MARPLE J R S L.Computing the Discrete-time“Analytic”Signal via FFT[J].IEEE Transactions on Signal Processing,1999,47(9):2600-2603.
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