文档介绍：河北工业大学
硕士学位论文
水泥碎石振动成型设计方法与路面结构优化研究
姓名:贾谦恒
申请学位级别:硕士
专业:市政工程
指导教师:魏连雨
20091101
河北工业大学硕士学位论文
水泥碎石振动成型设计方法与路面结构优化研究
摘要
半刚性基层广泛应用于我国公路尤其是高等级沥青路面的基层,对整个路面的使用
质量和使用寿命都有十分重要的影响。由于材料设计的室内试验方法不同,从而在有效
的模拟现场的程度上也存在差异,因此,本课题应用振动成型方法设计水泥碎石的配合
比,并对其路用性能进行比较研究。
本文首先在规范规定的级配范围内,进行了级配优化,然后利用优化后的级配采用
静压和振动两种方式进行配合比设计,并在强度性能、刚度性能、收缩性能和抗冲刷性
能等方面进行对比分析。
在抗疲劳性能方面,本文采用了两个水泥剂量、两种级配和两种成型方式来设计,
采用室内疲劳试验方法,确定各组的疲劳方程,并分别进行比较,最后得出高水泥剂量、
偏细级配、振动成型方式的水泥碎石混合料有更优的抗疲劳性能,但是和二灰碎石相比,
水泥碎石的抗疲劳性能要差。
利用公路路面设计系统软件,通过建立路面结构模型,并改变水泥碎石基层的模量、
厚度和结构层位置,对路面各结构层的层底拉应力进行计算,考虑包括抗疲劳性能的因
素,得出一个适宜参数下的路面结构模型,并对其进行路面寿命预估。

关键词:水泥碎石,振动成型,级配优化,疲劳性能,路面结构优化,寿命预估
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水泥碎石振动成型设计方法与路面结构优化研究
RESEARCH ON VIBRATION MOULDING DEDIGN METHOD
OF CEMENT STABLED MACADAM AND PAVEMENT
STRUCTURE OPTIMIZATION
ABSTRACT
Semi-rigid base was widely applied in China, especially high-grade highway asphalt
was very important for pavement quality and the service life. Because of the
difference of design method of indoor test materials, Thus there are different degrees in the
field of effective simulation .So,this paper adopt vibration molding method to design cement
stabled macadam,and have parison research on its Road performance.
This paper firstly decides the gradation optimization in standard gradation optimization,
then use the optimized gradation by static and vibration in two ways to mix proportion
design,and the mixture were analyzed in the strength, stiffness properties, shrinkage
properties and resistance properties etc.
In the anti-fatigue performance, this subject adopts two cement dose, two gradation and
two molding method to design, Using the fatigue test method indoor, Determining the fatigue
equation,and paring them. Finally,this paper have the conclusion that higher dose of
cement, fine gradation and vibration molding method of cement macadam mixture have better
anti-fatigue performance.
By calculating the stress of structural layers t