The results showed that the gradation , which designed by volumetric methods , has perfect water - stability and other pavement performance also can meet the demands of expressway . by integrating compaction capacity and pavement performances , the optimal ratio of the structural layer thickness to the maximum particle - size is 2 . 5 . the water resistance of the mixture added amine type anti - stripping agent attenuates severely after long - term aging , but the mixture added hydrated lime not only can improve obviously the capacity of water resistance , but also has perfect long - term pavement performance 研究结果表明，采用体积法设计的级配不仅具有较好的水稳定性而且其它路用性能均满足高速公路面层的要求；综合考虑压实性能及路用性能，提出了沥青路面表面层结构层厚度与混合料最大粒径的合理比例为2 . 5 ；掺有液体胺类抗剥落剂的沥青混合料经长期老化后其抗水损害能力衰减严重，而掺加消石灰的混合料能显著提高其抗水损害能力，且长期性能较好，是一种优良的抗剥落剂。
The conclusions from this research include : ( 1 ) the real part mainly effects the delay time between two peaks of gpr signal , the larger the real part , the longer the delay time . ( 2 ) the imaginary part mainly affects the peak amplitude of gpr waveform except that from pavement surface , the higher the imaginary part , the lower the peak amplitude . ( 3 ) the neglect of imaginary part of dielectric will increase the analyzing error obviously when it is higher 分析了路面结构层材料介电常数实部和虚部对雷达电磁波反射信号的影响，并得出以下结论： ( 1 )介电常数的实部主要影响雷达反射波的时延，实部越大，时延越长； ( 2 )虚部主要影响除路表反射波幅之外的其它结构层界面的反射波波幅，虚部越大，反射波幅越小； ( 3 )当介质介电常数虚部较大时，忽略虚部将给分析结果带来明显的误差； 3
In this paper , the geogrids structure , the flexible beams strucrure , the geogrids and flexible beams structure are analysed with algor , and it is used to analys the influence of some paramenters . such as the modulus of structural layers , size of structure , place of structure , non - uniform settlements . and the contrast of the three structures is analysed in this paper . we can see the reasonable size and reasonable place through analyse . the analyse of the test road show that the structures worked well for about two years and the reflection cracks have not be found 本文首先借助algor有限元软件对土工格栅处治结构、柔性枕梁处治结构及土工格栅与柔性枕梁复合结构进行了力学分析，包括各结构层模量影响规律分析，格栅及枕梁尺寸、位置影响规律分析，路基不均匀变形影响规律分析，各种处治结构间的对比分析等。通过分析，得出了各结构的合理尺寸及合理的布设方案。
According to economical condition and climate condition of cangzhou , it is necessary to mention the combination and thickness of road construction that can accord the requestion of criterion , be economical and viable . author carried through different structure combination and choosed different thickness of structure layer basing on different road grade . in this text , author elected a secondary road to checking computations 按照沧州的经济条件和气候条件，提出沧州地区既符合各种规范要求又经济可行并符合当地情况的路面结构组合和路面厚度是十分必要的。作者根据不同的道路等级进行了不同的结构组合，并选用了不同的结构层厚度，同时拟定了一条二级公路进行验算。
Moisture , the voids and the density of the pavement are expected for many operators in the road department . in order to promote the application of gpr to detect pavement quality as quickly as possible , in this paper some research works were zone . the mainly research results includes the following aspects : ( 1 ) since the dielectric constants of pavement medium have important influence on radar detection results , dielectric properties of pavement layers materials are analyzed for the design of practical gpr system and field application 目前探地雷达在公路上的应用还主要局限于路面结构层厚度的检测，对路基路面物理力学指标的无损检测被广大公路工作者寄予厚望，这一技术的应用还有很多的工作要做，为了使其早日应用于实际，实现探地雷达对路面含水量、空隙率和压实度的快速无损检测，本文具体做了以下的一些工作： ( 1 )鉴于介电常数对探地雷达检测的重要影响，对路面结构材料的介电特性进行深入分析，为路用探地雷达的实际应用测量提供理论依据。
Taking the traffic load as moving point load , the deformation characteristics of longitudinal section of pavement and composite foundation under moving point load are analyzed , considering the effect of pore pressure , traffic velocity , parameters of pavement structure and subgrade . finally , two examples of pavement section and soft subgrade , longitudinal section of airport runway and composite foundation are calculated 将交通荷载简化为移动的集中荷载，计算分析了单次移动加载和循环移动加载条件下道路纵截面与复合地基共同变形特交通荷载作用下道路与软土复合地基共同作用性状研究性，探讨了孔压、行车速度及道路结构层和地基参数对道路变形的影响。
Imposing on the abundant fwd test data , a newly pavement intensity assessment standard is come into being . recurring to the program evercalc5 . 0 , the common rules of backcalculation modulus are introduced , moreover , the influence of instrument measurement error and input parameters are construed . utilizing the characteristics of deflection basin , so that it can assess the intensity of whole pavement structure 通过对丰富的fwd检测数据的分析，提出了全新的路面结构强度评定标准；借助evercalc反算程序，介绍了模量反算的一般规律，分析了仪器测量误差和输入参数对反算结果的影响，利用弯沉盆的几何特性对路面的整体强度进行评价，并建立了各结构层动模量与静模量间的相关关系。
Research results show that the settlements of the road structure mainly come from the consolidation and the accumulative residue settlements under the cyclic loads . excessive uneven settlements will produce the premature failure on the pavement . and few researches on the interaction of pavement and subgrade have been developed at present 研究表明，路面路基结构的沉降变形主要来自地基路堤土层的固结压密沉降和交通荷载反复作用下路面路基各结构层的累积残余变形，路面路基结构发生过大的沉降变形会使路面过早破坏。
Then , the paper proposes process management of software development methods based on hierarchy model . it hierarchies process concept and classifies complex factors to different abstract layers : organization layer , work flow layer and material layer . according to different features , corresponding measures are applied to control and improve the software development process effectively 并在统一过程的基础上提出了基于层级模型的软件开发过程管理方法，将软件开发中的“过程”的概念层级化，将原来众多复杂的因素划分到不同的抽象层次：组织结构层、过程流层和物件流层。
In the paper , an overview of transpiration cooled platelet and micro - scale theory is presented . the velocity slip model and the temperature jump model for the research on flow and heat transfer in the platelet micro - channel are developed . while programs developing , two dimensional temperature distribution of the fluid in the channel and one dimensional temperature distribution of the platelet are obtained 本文对层板发汗冷却技术和微尺度理论进行了综述,建立了温度跳跃和速度滑移的微尺度研究模型,通过编写程序,得到了微小通道内流体的二维温度分布和结构层板的一维温度分布。
