首先,论文分析了半刚性基层沥青路面疲劳裂缝的形成机理。
Firstly, the paper analysed the formation mechanism of the fatigue crack in asphalt pavement with semi-rigid base.
我国目前存在半刚性基层沥青路面结构设计和材料设计脱节的问题。
There is a problem that structure design and materials design are disjointed about the asphalt pavement with semi-rigid base in our country.
研究结果可供高等级公路半刚性基层沥青路面结构设计和施工时参考。
In designing and constructing asphalt pavement structures with semi-rigid base course for the high-type highway, one can refer to the results from this research.
以半刚性基层沥青路面为对象,研究了路面的应力应变模型和计算方法。
Regarding semi rigid base asphalt concrete road as the main object, the model of road stress and strain and their calculating method were studied in the paper.
水泥稳定砂砾混合料的配合比是保证半刚性基层沥青路面整体质量的关键环节。
The design of the mixture ratio of the cement stabilized sand and gravel is one of the critical links to ensure the whole quality of the asphalt pavement on semirigid base course.
在路面状况分析评价中,依据木桶理论以探求半刚性基层沥青路面的损坏模式。
In the analysis and evaluation of highway asphalt pavement conditions, the barrel theory was firstly used to seek the damage pattern of asphalt pavement.
半刚性基层沥青路面作为过渡层时,可以有效改善半刚性基层收缩裂缝的反射裂缝的发生。
Unbound aggregate base can efficiently retard the reflexion of cracks to asphalt pavement surface, which is aroused by the shrinkage crack of semi-rigid base in the inverted structure.
减少水泥稳定碎石基层材料的干缩裂缝,对延长半刚性基层沥青路面的使用寿命至关重要。
It is extremely important to reduce dry shrinkage cracking of cement-stabilized macadam base course materials for prolonging service life of asphalt pavement with semi-rigid base.
我国高速公路的路面广泛采用半刚性基层沥青路面,而这种路面出现早期破坏的现象比较普遍。
In China, the bituminous pavement with semi-rigid base is widely used in freeway, in which the early damage phenomenon is popular.
对半刚性基层沥青路面而言,其主要承重层是半刚性基层,而沥青面层一般只起功能作用,不起强度作用。
As to the semi-rigid base bituminous pavement, the main bearing weight is basis on the semi-rigid layer. The bituminous pavement has a normal function, without any bearing strength.
传统的半刚性基层沥青路面,由于基层刚度大、透水性较差,面层反射裂缝多,路面易过早发生疲劳开裂现象。
As primary stiffness, poor water permeability, reflective cracking of pavement surface layer. Traditional semi-rigid base asphalt pavement are easy to premature fatigue cracking phenomenon.
根据国内外研究成果,采用铺设新型材料—玻璃纤维格栅的方法,是解决半刚性基层沥青路面反射裂缝问题的一个途径。
According to the construction practice, this paper sums up the construction technology of glass fiber grid in the practical pavement and some problems needing attention.
基于断裂力学,采用有限元程序,对两种级配碎石夹层沥青路面结构和常规半刚性基层沥青路面结构的断裂进行了对比分析。
Based on the cracking mechanism and FEM, the crackings on the grade crushed stone pavement and the semirigid base asphalt pavement are compared and analyzed.
本文在国内外已有研究成果的基础上,根据国内普遍采用半刚性基层沥青路面这一结构特点,研究利用水泥为稳定剂的旧沥青路面的现场冷再生技术。
Based on the research results from home and abroad, and the characteristic of the widely-adopted semi-rigid pavement, the thesis studies the cold in-place recycling technology stabilized by cement.
沥青路面结构有多种形式,我国经过多年的应用实践,选择了半刚性基层结构形式,这是一种基于国情的选择。
After many years of practical application in our country, we chose semi-rigid base structure form, and this choice is based on the national situation.
为了分析、比较、评价不同类型半刚性基层材料抗冲刷性能,为半刚性基层材料的设计提供依据,研制了动水压力对带裂缝沥青路面半刚性基层冲刷作用模拟试验机。
For analysing, comparing and appraising the anti-erosion properties of different kinds of semi-rigid base materials, offering the basis for the design, the simulation testing machine is developed.
半刚性基层材料由于具有优良的路用性能而常作为沥青路面和水泥混凝土路面的基层,其质量好坏会直接影响道路路面的质量和寿命。
Semi rigid base course is widely used in Chinese super highway for its good character, the performance and life of pavement is influenced by semi rigid base course.
通过对比分析,结合具有级配碎石基层半刚性底基层沥青路面主要破坏类型的分析,提出结构设计的控制指标。
Main form of structural default is found in semi-rigid pavement with unbound aggregate upper base through contrasting. And it suggests control index of structural design.
通过对比分析,结合具有级配碎石基层半刚性底基层沥青路面主要破坏类型的分析,提出结构设计的控制指标。
Main form of structural default is found in semi-rigid pavement with unbound aggregate upper base through contrasting. And it suggests control index of structural design.
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