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Intelligent pavement condition survey:Overview of current researches and practices

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Journal of Road Engineering 2024年第3期4卷 257-281页

作者： Allen A.Zhang Jing Shang Baoxian Li Bing Hui Hongren Gong Lin Li You Zhan changfa ai Haoran Niu Xu Chu Zilong Nie Zishuo Dong Anzheng He Hang Zhang Dingfeng Wang Yi Peng Yifan Wei Huixuan Cheng School of Civil Engineering Southwest Jiaotong UniversityChengdu 610031China School of Transportation and Geomatics Engineering Shenyang Jianzhu UniversityShenyang 110168China School of Highway Chang'an UniversityXi'an 710064China College of Transportation Engineering Tongji UniversityShanghai 201804China College of Transportation Engineering Nanjing Tech UniversityNanjing 211816China School of Civil Engineering Central South UniversityChangsha 410075China

Automated pavement condition survey is of critical importance to road network *** are three primary tasks involved in pavement condition surveys,namely data collection,data processing and condition *** intelligence(ai)has achieved many breakthroughs in almost every aspect of modern technology over the past decade,and undoubtedly offers a more robust approach to automated pavement condition *** article aims to provide a comprehensive review on data collection systems,data processing algorithms and condition evaluation methods proposed between 2010 and 2023 for intelligent pavement condition *** particular,the data collection system includes ai-driven hardware devices and automated pavement data collection *** ai-driven hardware devices including right-of-way(ROW)cameras,ground penetrating radar(GPR)devices,light detection and ranging(LiDAR)devices,and advanced laser imaging systems,*** different hardware components can be selectively mounted on a vehicle to simultaneously collect multimedia information about the *** addition,this article pays close attention to the application of artificial intelligence methods in detecting pavement distresses,measuring pavement roughness,identifying pavement rutting,analyzing skid resistance and evaluating structural strength of *** upon the analysis of a variety of the state-of-the-art artificial intelligence methodologies,remaining challenges and future needs with respect to intelligent pavement condition survey are discussed eventually.

关键词： Pavement condition survey Pavement data collection Artificial intelligence Machine learning Deep learning Pavement condition evaluation

Intelligent pavement condition survey: Overview of current researches and practices

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Journal of Road Engineering 2024年第3期 257-281页

作者： Allen A.Zhang Jing Shang Baoxian Li Bing Hui Hongren Gong Lin Li You Zhan changfa ai Haoran Niu Xu Chu Zilong Nie Zishuo Dong Anzheng He Hang Zhang Dingfeng Wang Yi Peng Yifan Wei Huixuan Cheng School of Civil Engineering Southwest Jiaotong University School of Transportation and Geomatics Engineering Shenyang Jianzhu University School of Highway Chang'an University College of Transportation Engineering Tongji University College of Transportation Engineering Nanjing Tech University School of Civil Engineering Central South University

Automated pavement condition survey is of critical importance to road network management. There are three primary tasks involved in pavement condition surveys, namely data collection, data processing and condition evaluation. Artificial intelligence(ai) has achieved many breakthroughs in almost every aspect of modern technology over the past decade, and undoubtedly offers a more robust approach to automated pavement condition survey. This article aims to provide a comprehensive review on data collection systems, data processing algorithms and condition evaluation methods proposed between 2010 and 2023 for intelligent pavement condition survey. In particular, the data collection system includes ai-driven hardware devices and automated pavement data collection vehicles. The ai-driven hardware devices including right-of-way(ROW) cameras,ground penetrating radar(GPR) devices, light detection and ranging(LiDAR) devices, and advanced laser imaging systems, etc. These different hardware components can be selectively mounted on a vehicle to simultaneously collect multimedia information about the pavement. In addition, this article pays close attention to the application of artificial intelligence methods in detecting pavement distresses, measuring pavement roughness, identifying pavement rutting, analyzing skid resistance and evaluating structural strength of pavements. Based upon the analysis of a variety of the state-of-the-art artificial intelligence methodologies, remaining challenges and future needs with respect to intelligent pavement condition survey are discussed eventually.

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基于室内加速磨耗的环氧沥青超薄磨耗层抗滑耐久性研究

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武汉理工大学学报（交通科学与工程版） 2024年第3期48卷 537-541页

作者：张艳周礼节曹超飞喻雪芳艾长发成都高速公路建设开发有限公司成都610041 成都市路桥经营管理有限责任公司成都610052 西南交通大学土木工程学院成都610031 道路工程四川省重点实验室四川成都610031

文中基于湿轮磨耗试验研究磨耗时间、污染物洒布量对环氧超薄抗滑磨耗层抗滑性能的影响,采用延长加速加载磨耗试验试件的BPN、TD以及磨耗质量损失率来评价超薄磨耗层的路用性能.结果表明:环氧超薄抗滑磨耗层的剥落率与磨耗温度、磨耗时... 详细信息

文中基于湿轮磨耗试验研究磨耗时间、污染物洒布量对环氧超薄抗滑磨耗层抗滑性能的影响,采用延长加速加载磨耗试验试件的BPN、TD以及磨耗质量损失率来评价超薄磨耗层的路用性能.结果表明:环氧超薄抗滑磨耗层的剥落率与磨耗温度、磨耗时间以及骨料粒径成正相关,且在高温高磨耗时间的情况下剥落率仍小于0.6%,环氧超薄抗滑磨耗层随着污染物洒布量的增加BPN均存在不同程度的下降,其中液体污染物比固体沙土对路面抗滑性能衰减的影响更显著.环氧超薄抗滑磨耗层在经过20万次的作用后超薄抗滑磨耗层的BPN、TD以及磨耗质量损失率均体现出优异性.

关键词：环氧沥青超薄铺装路表抗滑加速磨耗试验抗滑耐久性

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高掺量SBS改性沥青及其混合料老化行为

广西大学学报（自然科学版） 2024年第4期49卷 751-763页

作者：赵爱军寇吟松李武伦王嘉昕艾长发颜川奇中铁城市发展投资集团有限公司四川成都610218 四川省交通运输发展战略和规划科学研究院四川成都610041 中铁宜宾投资建设有限公司四川宜宾644000 西南交通大学土木工程学院四川成都610031 西南交通大学道路工程四川省重点实验室四川成都610031

为了探究高掺量SBS改性沥青及其混合料的抗老化性能,分别对高掺量SBS改性沥青和70号基质沥青进行老化,并进行沥青流变性能试验,分别评价高掺量SBS改性沥青老化前后的弹性恢复性能、高温抗变形性能、抗疲劳性能,并对其混合料老化前后的... 详细信息

为了探究高掺量SBS改性沥青及其混合料的抗老化性能,分别对高掺量SBS改性沥青和70号基质沥青进行老化,并进行沥青流变性能试验,分别评价高掺量SBS改性沥青老化前后的弹性恢复性能、高温抗变形性能、抗疲劳性能,并对其混合料老化前后的高温稳定性、抗车辙性能和抗裂性能进行评价。研究结果表明:随着老化程度的加深,高掺量SBS改性沥青的模量增大,弹性恢复性能、高温抗变形能力、疲劳性能减弱,其混合料的高温稳定性与高温抗变形能力降低,抗裂性能逐渐变差;沥青氧化硬化和SBS氧化降解的博弈对高掺量SBS改性沥青及其混合料各性能均有不同程度的影响;尽管高掺量SBS改性沥青具有良好的抗老化性能,但仍需额外关注其老化所导致的性能下降问题。

关键词：道路工程老化机制改性沥青沥青混合料

憎水剂对透水混凝土抗堵塞性能及透水性能的影响研究

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新型建筑材料 2024年第2期51卷 11-16页

作者：李龙宋千勇周为颜川奇艾长发中建西南咨询顾问有限公司四川成都610042 成都地铁运营有限公司四川成都610000 西南交通大学土木工程学院四川成都610031

为探究憎水剂SHP60对透水混凝土抗堵塞性能的影响及作用机理,采用水滴润湿边角试验观测SHP60对材料憎水性影响;通过SEM观察冲水前后试件的孔隙及颗粒形状变化;研究了SHP60掺量对透水混凝土初始孔隙率及使用过程中抗堵塞性能的影响,优选... 详细信息

为探究憎水剂SHP60对透水混凝土抗堵塞性能的影响及作用机理,采用水滴润湿边角试验观测SHP60对材料憎水性影响;通过SEM观察冲水前后试件的孔隙及颗粒形状变化;研究了SHP60掺量对透水混凝土初始孔隙率及使用过程中抗堵塞性能的影响,优选最佳SHP60掺量。结果表明:SHP60使材料水滴润湿边角增大2倍左右,使材料具有憎水性;SHP60对透水混凝土抗堵塞性能由对初始透水能力的削弱和对使用过程中透水能力的增强耦合。优先考虑透水性能的提高,其次考虑抗压强度条件下,SHP60最佳掺量为透水混凝土配合比干料质量的0.35%。

关键词：海绵城市憎水剂SHP60 透水混凝土抗堵塞性能最佳推荐量

Testing and assessing the performance of a new warm mix asphalt with SMC

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Journal of Traffic and Transportation Engineering(English Edition) 2015年第6期2卷 399-405页

作者： changfa ai Qiang Joshua Li Yanjun Qiu School of Civil and Environmental Engineering Oklahoma State University School of Civil Engineering Southwest Jiaotong University Highway Engineering Key Laboratory of Sichuan Province

Warm mix asphalt （WMA} is a new technology which asphalt mix is produced and placed at normal temperature. It has advantages including low cost, environmentally friendly, haul-convenience, and so on. WMA has been widely tested and applied in the USA in the last decade, but it has just started in China. Recently, a new WMA using a new plastic- macromolecule-normal temperature additive, which was called ＂SMC＂ by the production company, was introduced as asphalt modifier. Based on discussing the strength forming process of this new WMA with SMC, a series of laboratory tests, including Marshall stability test （MST）, boiling test （BT）, modified immersion Marshall test （MIMT）, freeze-thaw split- ring test （FTST）, rutting test （RT）, low-temperature bending test （LTBT）, and abrasion loss test （ALT）, were conducted in this study to assess the performance of this WMA and the capability of applying it on low volume roads in China. SMC modified asphalt mixed under normal temperature is used in testing samples. It was found that this WMA product exhibited merits on its strength, which was about 6.7 kN bigger than the requirement of 5.0 kN in the JTG F40-2004, on high-temperature stability, which is about 1100 times/ram greater than the requirement of 600-1000 times/mm in the ）TG F40-2004, and on its storage stability. Based on these indicators, it is recommended that this product could be used for low volume low class roads construction. However, due to the relatively lower water resistance and low-temperature cracking resistance, this product is suggested to be applied first in the areas with warm weather and little rainfall. In order to improve the perfor- mance of this WMA with SMC, further research on this SMC asphalt modifier should be continued.

关键词： Warm mix asphalt (WMA) SMC asphalt modifier Low volume road Laboratory test Performance assessment

Comparative analysis on dynamic behavior of two HMA railway substructures

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Journal of Modern Transportation 2011年第1期19卷 26-34页

作者： Mingjing FANG Yanjun QIU Jerry G. ROSE Randy C. WEST changfa ai National Center for Asphalt Technology （NCAT） College of Engineering Auburn University Auburn AL 36830-5577 USA School of Civil Engineering Southwest Jiaotong University Chengdu 610031 China College of Engineering Civil Engineering Department University of Kentucky Lexington KY40506-0281 USA

A numerical analysis using a finite element program was performed on three structures： hot mix asphalt （HMA） reinforced trackbed （RACS-1）, HMA directly supported trackbed （RACS-2）, and traditional Portland Cement Concrete （PCC） slab track （SlabTrack）. Although the comprehensive dynamic responses of RACS-1 were similar with SlabTrack, HMA layer can positively affect the stress distributions. In particular, the horizontal stresses indicate that the resilience of RACS-1 was improved relative to SlabTrack. In addition, HMA reinforced substructure has the capacity to recover the residual vertical deformation. The effective depth for weakening dynamic loadings is mainly from 0 to 2 m, this being especially true at 0.5 m. The results from the analysis show that HMA is a suitable material for the railway substructure to enhance resilient performance, improve the stress distribution, weaken dynamic loading, and lower the vibration, especially at the effective depth of 2 m. The HMA constructed at the top of the stone subbase layer allows the vertical modulus a smooth transition. In terms of the comprehensive dynamic behaviors, RACS-1 is better than SlabTrack, while the results for RACS-2 are inconclusive and require further research.

关键词： high-speed railway HMA railway substructure FEM analysis

考虑层间状态的沥青路面温度与荷载耦合行为分析

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土木工程学报 2007年第12期40卷 99-104页

作者：艾长发邱延峻毛成兰波西南交通大学四川成都610031 四川省交通厅四川成都610041

沥青路面是典型的层状体系,层间黏结状态的好差直接影响到路面的使用性能。采用三维非线性有限元软件ABAOUS,同时考虑沥青混合料的劲度模量随温度变化的特性,数值模拟计算了沥青路面在不同温度场状况下分别与水平及竖向荷载耦合作用的... 详细信息

沥青路面是典型的层状体系,层间黏结状态的好差直接影响到路面的使用性能。采用三维非线性有限元软件ABAOUS,同时考虑沥青混合料的劲度模量随温度变化的特性,数值模拟计算了沥青路面在不同温度场状况下分别与水平及竖向荷载耦合作用的关键力学响应,分析各响应指标随层间接触状态变化的特性。研究结果表明:由于接触模型作用机理的不同,其关键力学指标响应要比连续模型下的大;除路表竖向变形大小几乎与层间接触状态无关外,其他指标在低温状况下,层间接触条件变化对其影响较小,而在高温状况下,特别当层间接触摩擦系数μ<0.6时影响很大,尤其对基层、底基层的最大拉应力及面层的最大剪应力影响显著。研究成果为科学解释沥青路面在不同环境温度与车辆荷载综合作用下的破损特征与行为机理提供了有力依据,为改善层间黏结条件有利于提高路面整体性能提供了理论支撑。

关键词：沥青路面层间状态有限元温度荷载耦合结构响应

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高寒地区沥青路面结构适应性

西南交通大学学报 2009年第2期44卷 147-154页

作者：邱延峻艾长发黄兵兰波西南交通大学土木工程学院四川成都610031 四川省交通厅四川成都610041

在广泛的路面调查基础上,结合数值计算分析,提出了柔性结构、倒装结构、全厚式结构和复合结构等几种新型路面结构形式,并通过郎川公路改建工程试验路进行了验证,证明了高寒地区路面结构适应性设计采用柔性基层的有效性,并推荐了高寒地... 详细信息

在广泛的路面调查基础上,结合数值计算分析,提出了柔性结构、倒装结构、全厚式结构和复合结构等几种新型路面结构形式,并通过郎川公路改建工程试验路进行了验证,证明了高寒地区路面结构适应性设计采用柔性基层的有效性,并推荐了高寒地区沥青路面优选结构.

关键词：沥青路面高寒地区路用性能试验路有限元分析