Foreign practices have proved that constructing perpetual pavement is an effective approach to solve premature failure and increase the service life of asphalt pavement.
本文针对我国重轴比例大、超限超载普遍的交通荷载特点,采用基于力学理论的分析方法及BISAR计算程序,在分析长寿命路面典型结构力学响应的基础上,探讨了重载作用下长寿命沥青路面的路面损伤与荷载的关系,提出了适用于重载道路长寿命沥青路面的轴载换算公式。
The fatigue limit of asphalt mixture in the perpetual pavement in Binzhou,Shandong Province by test of the fatigue performance of asphalt mixture in the condition of different low strain levels was got.
在分析常规应变条件下沥青混合料疲劳破坏发展的基础上,改进了AASHTO T321中所推荐的疲劳寿命计算方法,根据混合料劲度模量的变化规律,将疲劳破坏过程分为3个阶段,以第2个阶段的试验数据推算低应变条件下试件的疲劳寿命,并通过测试不同低应变水平下沥青混合料的疲劳性能,得出了山东省滨州地区长寿命路面沥青混合料的疲劳极限。
The long-life pavement is a new technique which is a suitable pavement for over-loading traffic in our country.
长寿命路面是适合我国超重载交通的一种路面结构形式,参考国外长寿命路面设计思想,给出长寿命路面精确定义,提出长寿命路面设计标准,并在结构设计和材料方面提出要求。
In order to solve such problems as the shortage of design life and actual life of pavement,considering research of long-life pavement,this paper discusses the definition of long-life pavement and design requirements.
为改善现有路面设计寿命不足、实际使用寿命短等问题,从长寿命路面研究出发,探讨了长寿命路面定义及设计要求,结合依托工程的PCC+AC长寿命路面结构,采用有限元和路面弹性层状体系理论,分析确定PCC+AC长寿命路面的力学模型,对PCC板板底荷载应力和温度应力进行计算分析,并进行路面使用寿命预估,得出理论使用寿命达到40年以上,其寿命符合长寿命路面的设计思想。
Preliminary analyse for long-life asphalt pavement based on semi-rigid base;
对混合式沥青路面结构沥青层底拉应变和半刚性层底拉应力进行了计算,得到同时满足沥青层和半刚性层不受疲劳破坏时的沥青层厚度,与国外长寿命路面设计软件PerRoad2。
Research on design indices of perpetual asphalt pavement;
长寿命沥青路面设计指标研究
Through the analysis of semi-rigid base pavement structure for expressway and the application of design concept for perpetual pavement abroad, mechanical design indexes for the composite base perpetual asphalt pavement structure are proposed.
通过分析高速公路半刚性基层路面结构,应用国外长寿命路面设计理念,提出复合式基层长寿命沥青路面结构的力学设计指标;通过借鉴国内外相关参数的研究成果,进行参数修正,提出了适合复合式基层长寿命沥青路面结构的设计标准。
Base on the design concept for perpetual pavement abroad,mechanical design indexes for new- type perpetual asphalt pavement structure were proposed.
通过引进国外长寿命路面设计理念,提出新型长寿命沥青路面结构的力学设计指标;运用正交试验方法,设计了正交表L_(32)(4~9),通过极差分析得出影响力学设计指标的最不利因素,提出路面结构的最优组合。
Study of Fatigue Limit of Asphalt Mixture for Perpetual Pavement
长寿命路面沥青混合料疲劳极限研究
Cost Analysis for Total Life Cycle of Long-life Asphalt Pavement with Flexible Base
柔性基层长寿命沥青路面全寿命周期成本分析
Study on Reasonable Structure of Perpetual Asphalt Pavement in the Seasonal Frozen Region
季冻区长寿命沥青路面合理结构研究
Analysis on Design Axle Load of Heavy-loaded Perpetual Asphalt Pavement;
重载道路长寿命沥青路面设计轴载分析
Researching on the Structure and Material Design of Perpetual Pavement;
重载交通长寿命沥青路面结构及材料设计研究
Initial analysis on development situation and design idea of asphalt pavement with long service life
浅析长寿命沥青路面的发展现状及设计理念
Mechanical characteristic analysis of anti-figure layer in long-term asphalt pavement
长寿命沥青路面抗疲劳层力学特性分析
Reflection on Long Service Life Asphalt Concrete Pavement
关于长寿命沥青混凝土路面的若干思考
Study for Structures and Design Methods of Full Flexible Long Life Asphalt Pavement (FF-LLAP);
全柔式长寿命沥青路面（FF-LLAP）结构及其设计方法研究
Structral Response Analysis on Perpetual Asphalt Pavement under Heavy Loading in Liaoning Province
辽宁省长寿命沥青路面重载作用下的结构响应分析
Research on Adaptability of Semi-rigid Material as Long Life Asphalt Pavement
半刚性材料作为长寿命沥青路面基层的适应性研究
Analysis of Mechanical Response when Change of Structural Thickness of Asphalt P with Long Service Life
长寿命沥青路面结构厚度变化时的力学响应分析
Life prediction method of asphalt pavement with compound base
复合式基层沥青路面的寿命预估方法
Integral Backseat– hardfaced for maximum backseat life.
(10) 整体后座–硬面，使用寿命最长。
Design and analysis of layer thickness of perpetual asphalt pavement structure
长寿沥青路面结构的层厚设计与分析
High luminous efficacy, average life-span 8000 hrs.
高光效，长寿命，平均寿命长达8000小时。
The Study on the Causes of Damage and the Using Life Prediction of Bridge Deck Pavements;
公路桥面铺装层损伤成因与使用寿命预测研究
The Research of Prediction Method for Advanced Asphalt Pavement Service Life;
高等级沥青路面使用寿命预测方法研究