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Flexible pavement design Simulation Using Mechanistic-Empirical pavement design Guide

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Journal of Civil Engineering and Architecture 2013年第11期7卷 1375-1384页

作者： Daba S. Gedafa Mustaque Hossain Stefan Romanoschi Andrew J. Gisi Department of Civil Engineering University of North Dakota Grand Forks ND 58202-8115 USA Department of Civil Engineering Kansas State University Manhattan KS 66506 USA Department of Civil Engineering University of Texas-Arlington Arlington TX 76019-0308 USA Kansas Department of Transportation Materials and Research Center Topeka KS 66611 USA

The KDOT （Kansas Department of Transportation） is currently adopting MEPDG （mechanistic-empirical pavement design guide） to replace the 1993 AASHTO （American Association of State Highway and Transportation Officials） design method. The main objective of this study was to compare flexible pavement design using 1993 AASHTO design guide and MEPDG. Five newly built Superior PERforming Asphalt pavements （Superpave）, designed using the 1993 AASHTO design Guide, were selected as test sections for the design simulation study. Deflection data were collected approximately 8 to 10 weeks after construction using FWD （falling weight deflectometer）. The FWD deflection data were used to back-calculate the pavement layer moduli using three different back-calculation programs. The existing pavement structures were analyzed for a 10-year analysis period. The maximum numbers of years the existing pavement structures will be in a serviceable condition as well as the minimum thicknesses of different layers to serve for 10-years were also determined. Effects of changing subgrade modulus, target distress, and reliability were also investigated. The MEPDG design analysis shows that the 1993 AASHTO Guide-designed flexible pavements do not show the distresses currently observed in Kansas for the 10-year design period. The MEPDG design simulation shows that the thinner the pavement sections, the higher the permanent deformation. The existing pavement structures can serve for more than 20 years as per the MEPDG design analysis if the default failure criteria and nationally-calibrated models are used.

关键词： pavement design MEPDG 1993 AASHTO design guide FWD deflection back-calculated modulus.

铺装设计对济南历下文化广场功能划分的支撑作用研究

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Estimation of the Equivalent design Temperature of a pavement in Burkina Faso

设计 2024年第3期9卷 518-524页

作者：蒲欣月贾如诗杨文新山东建筑大学艺术学院，山东济南

本论文以济南历下文化广场为研究对象，探讨铺装设计在城市公共空间功能划分中的支撑作用。通过实地勘察，系统梳理了历下文化广场的铺装设计现状及其空间功能区的划分。铺装设计通过选材、配色、布局等方法，有效划分和定义广场空间，... 详细信息

本论文以济南历下文化广场为研究对象，探讨铺装设计在城市公共空间功能划分中的支撑作用。通过实地勘察，系统梳理了历下文化广场的铺装设计现状及其空间功能区的划分。铺装设计通过选材、配色、布局等方法，有效划分和定义广场空间，引导人流量的分布和聚集，从而提高广场的整体功能性和有效性。历下文化广场的使用已有几十年的时间，通过对其进行研究分析不仅可以学习之前设计师的铺装规划思路，还可以探讨可以用什么样的铺装设计来规划空间，从而提升空间的利用率和周边居民的幸福感。

关键词：铺装设计城市广场功能划分 pavement design Urban Plaza Functional Division

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材料科学与工程（中英文B版） 2022年第2期12卷 41-49页

作者： Abdoulaye Koanda Sidpouita Mathilde Koudougou David Y.K.Toguyeni Institut du Génie des Systèmes Industriels et Textiles Ecole Polytechnique de OuagadougouOuagadougouBurkina Faso Laboratoire de Physique et de Chimie de l’Environnement OuagadougouBurkina Faso UniversitéJoseph Ki-Zerbo OuagadougouBurkina Faso

The bituminous pavements of the city of Ouagadougou(Burkina Faso)are made using old design methods which take into account the climate from the notion of equivalent *** an equivalent temperature of 30°C is often used for the design of bituminous *** observation that has been made is that this temperature does not currently make it possible to reduce the problems of early degradation of the pavements linked to meteorological *** objective of this article is to propose a numerical approach for determining the equivalent temperature from temperature measurements taken at the surface of the *** approach consists in jointly using the Alizé-Lcpc sizing software and the Comsol Multiphysics software using the finite element *** a four-layer bituminous pavement,located at 12.38°North and 1.48°West,in Ouagadougou,consisting of a surface course of bituminous concrete of 8 cm and a base course of gravel bitumen of 16 cm,an equivalent temperature of 35°C was obtained.

关键词： Asphalt mixes pavement design equivalent temperature

Autonomous vehicles wheel wander: Structural impact on flexible pavements

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Journal of Traffic and Transportation Engineering(English Edition) 2021年第3期8卷 388-398页

作者： Konstantina Georgouli Christina Plati Andreas Loizos Department of Transportation Planning and Engineering School of Civil EngineeringNational Technical University of AthensZografou 15773Greece

Autonomous vehicles(AVs), including trucks, are already available and their adoption is coming at a rapid pace. Despite the fact that this new transportation technology will travel on existing pavement infrastructure assets, the study and investigation of the AVs structural impact on pavements has not reached the same level of attention and maturity as other related research areas. Considering the extensive investment on pavement construction and maintenance, the necessity to fully understand these impacts in the long term, is becoming evident. The present paper presents and discusses currently published relevant research and findings on the quantification of the wheel wander potential impact,both negative and positive, offering potential insightful future areas of enquiry to help mold and shape future research for this emerging field. The paper focuses on the impact of the AVs zero lateral wheel wander on both new flexible pavement design and the damage accumulation within existing flexible pavement structures. Other wheel wander distributions(normal, uniform, etc.) are investigated as well. The outcome and findings are that the AVs zero lateral wheel wander has a definable negative structural impact on flexible pavement structures in comparison to current human-driven(non-autonomous) vehicles that tend to follow a normal lateral wheel wander distribution. However, under certain defined conditions(optimal wheel wander distribution), the pavement service life can be potentially extended.

关键词： Road engineering Autonomous vehicles Wheel wander pavement design pavement performance

Research and applications of artificial neural network in pavement engineering:A state-of-the-art review

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Journal of Traffic and Transportation Engineering(English Edition) 2021年第6期8卷 1000-1021页

作者： Xu Yang Jinchao Guan Ling Ding Zhanping You Vincent C.S.Lee Mohd Rosli Mohd Hasan Xiaoyun Cheng School of Highway Chang'an UniversityXi'an 710064China School of Future Transportation Chang'an UniversityXi'an 710064China College of Transportation Engineering Chang'an UniversityXi'an 710064China Department of Civil and Environmental Engineering Michigan Technological UniversityHoughtonMI 49931USA Faculty of Information Technology Monash UniversityClaytonVIC 3800Australia School of Civil Engineering Universiti Sains MalaysiaNibong Tebal 14300Pulau PinangMalaysia

Given the great advancements in soft computing and data science,artificial neural network(ANN)has been explored and applied to handle complicated problems in the field of pavement *** study conducted a state-of-the-art review for surveying the recent progress of ANN application at different stages of pavement engineering,including pavement design,construction,inspection and monitoring,and *** study focused on the papers published over the last three decades,especially the studies conducted since *** literature retrieval,a total of 683 papers in this field were identified,among which 143 papers were selected for an in-depth *** ANN architectures used in these studies mainly included multi-layer perceptron neural network(MLPNN),convolutional neural network(CNN)and recurrent neural network(RNN)for processing one-dimensional data,two-dimensional data and time-series ***-based pavement health inspection and monitoring attracted the largest research interest due to its potential to replace human *** ANN has been proved to be an effective tool for pavement material design,cost analysis,defect detection and maintenance planning,it is facing huge challenges in terms of data collection,parameter optimization,model transferability and low-cost data *** attention should be paid to bring multidisciplinary techniques into pavement engineering to tackle existing challenges and widen future opportunities.

关键词： pavement engineering pavement design Artificial neural network Deep learning pavement life cycle Health inspection and monitoring

A systematic review of steel bridge deck pavement in China

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Journal of Road Engineering 2023年第1期3卷 1-15页

作者： Leilei Chen Xinyuan Zhao Zhendong Qian Jiaqi Li Intelligent Transportation System Research Center Southeast UniversityNanjing 211189China

As an important part of steel bridge deck,the engineering quality and service condition of steel bridge deck pavement(SBDP)directly affects the capacity and operational efficiency of the *** paper reviews the history of the development of SBDP in China over the past 20 years from the exploration stage,rapid development stage and prosperity *** development and application of SBDP at different stages are discussed in terms of materials,structure,design,performance evaluation,maintenance and rehabilitation,*** advantages and disadvantages of different pavement materials and structures,and the application of different research methods are *** review shows that the improvement of pavement materials and structures and the development of new materials should be further studied on the multi-scale to enhance the durability of pavement materials,so as to extend the service life of *** design method of SBDP related to the synergistic effect of vehicle,pavement and bridge should be established,and the design concept and method standard of rigid base pavement structure should be improved and formulate a complete design *** addition,multi-disease intelligent identification system and equipment should be studied to track the entire course of disease development in real *** it is necessary to develop appropriate algorithms to select and classify the complex data of disease and maintenance history.

关键词： Steel bridge deck pavement pavement material and structure pavement design Service performance Maintenance and rehabilitation

A Practical Model for Deformation Prediction of Highway Subgrade Soils

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Journal of Modern Transportation 2000年第1期17卷 13-24页

作者：邱延峻 NormanD.Dennis RobertP.Elliott School of Civil Engineering Southwest Jiaotong University Chengdu 610031 China Department of Civil Engineering University of Arkansas Fayetteville AR 72701 U.S.A.

This paper reports a practical constitutive relation for highway subgrade soils. The proposed model is derived based on the laboratory repeated load testing of four subgrade soils. Statistical parameters generally used in the power model of subgrade permanent strain are expanded into material constants with engineering significance. The constitutional relation reported in this paper can be used in the mechanistic based pavement design of highway flexible pavements and railroad tracks.

关键词： constitutive relation subgrade soil pavement design

Theoretical Development and Engineering Practice of pavements in China

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Journal of Southwest Jiaotong University(English Edition) 2008年第2期16卷 125-136页

作者：邱延峻 School of Civil Engineering Southwest Jiaotong University

This paper presents a comprehensive review of historical theory development and current construction practice of pavement engineering in China. Mechanical models, design guides, construction techniques, evaluation methods and maintenance standards are elaborated for Portland cement concrete （PCC） pavements methodology among pavements of rural highways, urban roads and asphalt concrete （AC） pavements. Differences in design and airport fields are discussed based on service requirements. Lessons and experiences based on the past 20 years＇ construction practice and pavement performance are summarized. Current research areas in pavement engineering associated with unconventional geological and/or landscaping in China＇s highway construction and national strategic plan for pavement engineering are also covered.

关键词： pavement engineering Asphalt concrete pavement Portland cement concrete pavement design