沥青路面层间剪切粘结性能试验及计算研究

发布时间：2021-06-26 11:10

　　沥青路面是由多种不同特性材料组成的多层层状结构,这些结构层粘结在一起形成整体结构并共同承受着外部交通荷载及环境条件。因此,相邻层间的粘结条件对沥青路面结构的整体性能至关重要。基于此,本文旨在研究沥青路面结构层间的界面剪切粘结行为。为实现这一目标,本文采用试验和统计分析方法评价沥青路面结构层间的界面粘结性能。首先,在当前缺乏统一的国际标准去评价层间界面的粘结性能时,不可避免会出现试验结果不能与所有情况相适应。此外,大量学者的研究表明,温度、荷载条件、材料等参数对界面行为有着显著影响。因此,本文将标准测试方法的重要特征作为论文研究的一部分,并提出一种有效评估和显示界面粘结性能的系统方法。其次,采用大量室内试验评价沥青路面结构层间的界面粘结性能。在第一阶段,使用直剪试验装置进行静态荷载下的界面剪切试验,并将正应力和剪切应力施加于层间界面之上。接着分析温度、垂直压力和粘层油用量等影响因素对界面剪切强度的影响。随后,使用统计分析方法确定各因素对界面剪切强度影响的显着性水平。在第二阶段,采用室内疲劳试验评价层间界面的疲劳行为。并使用最新研发的可对试件施加竖向压力的4点剪切试验（4PST）装置进行疲... 

【文章来源】：西南交通大学四川省 211工程院校 教育部直属院校

【文章页数】：138 页

【学位级别】：博士

【文章目录】：
Abstract
摘要
Chapter 1: Introduction
    1.1. Introduction
    1.2. Statement of the problem
    1.3. Objective and approach
    1.4. Thesis outline
Chapter 2: Research Background
    2.1. Introduction
    2.2. Debonding phenomenon
    2.3. Interface bonding verification test
        2.3.1. Shear test
        2.3.2. Tensile test
        2.3.3. Other test methods
    2.4. Standardization procedure for interface bond testing[81]
    2.5. Theoretical basis of the mechanical behavior of interfaces
    2.6. Numerical modeling
    2.7. Influential factors on pavement layer interface performance
        2.7.1. Materials characteristics
        2.7.2. Interface properties
        2.7.3. Field Related Testing Parameters
        2.7.4. Specimen Conditions
    2.8. Summary
Chapter 3: Monotonic behaviour of Interface bonding
    3.1. Introduction
    3.2. Monotonic characterization of interface
    3.3. Test Method and Procedure
        3.3.1. Direct Shear Test with Normal Load
        3.3.2. Laboratory Test Procedure
    3.4. Test Materials and Program
        3.4.1. Specimen Preparation
        3.4.2. Test Program
    3.5. Results and Discussion
        3.5.1. Effect of Tack Coat Application Rate
        3.5.2. Effect of Temperature
        3.5.3. Effect of Vertical Loading
        3.5.4. Analysis of Influential Factors over Shear Strength
    3.6. Interface Shear Strength Model
    3.7. Summary
Chapter 4:Fatigue Behaviour of Interface Bonding
    4.1. Introduction
    4.2. Fatigue characterization of interface
    4.3. Experimental program
        4.3.1. Test Device
        4.3.2. Materials
        4.3.3. Specimen Preparation
        4.3.4. Experimental Parameters and Test Plan
    4.4. Experimental results and discussion
        4.4.1. Interface fatigue failure criteria
        4.4.2. Effect of normal pressure
        4.4.3. Effect of loading frequency
        4.4.4. Effect of shear stress
        4.4.5. Analysis of variance (ANOVA) and regression analysis
    4.5. Summary
Chapter 5: Shear Stree Effect and Evaluating Debonding Potential
    5.1. Introduction
    5.2. Methodology
        5.2.1. Shear forces acting at pavement surface
        5.2.2. Case studies
    5.3. FE model development
        5.3.1. Geometry and structure of the model
        5.3.2. Loading application
        5.3.3. Material properties
        5.3.4. Implicit dynamic analysis
        5.3.5. Interface model
        5.3.6. FE model validation
    5.4. Analysis and discussion
        5.4.1. Pavement response within layers
        5.4.2. Pavement response at the layer interface
        5.4.3. Shear-normal stress relationship
        5.4.4. Layer interface failure criterion
    5.5. Summary
Chapter 6: Conclusions & Recommendations
    6.1. Introduction
    6.2. Conclusions
        6.2.1. Standardization of interface bonding evaluation
        6.2.2. Experimental work
        6.2.3. Numerical analysis work
    6.3. Recommendations for future research
Acknowledgements
References
List of Publications



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