摘要
根据混凝土材料组成的微观颗粒结构 ,利用分形几何学的基本原理对水泥混凝土路面裂缝分布进行描述 ,对混凝土回弹模量、配合比和分维数对水泥混凝土路面性能的影响 ,进行了研究和分析 ,然后建立水泥混凝土路面裂缝形成机制的键渗流模型 ,应用重正化群理论计算渗流阀值 ,确定混凝土路面的破坏条件。对分形。
The cracking distribution of concrete pavement is described by principle of Fractal Geometry based on microstructure of concrete material constituents,and influence of modulus of resilience,mix proportion and fractal dimension on properties of concrete pavement is studied and analyzed,and then a bound seepage model on mechanism of cracking formation has been established.Threshold value of seepage is calculated using the renormalization theory to estimate the condition of pavement damaging.Relationship among Fractal,threshold value of seepage,properties of concrete pavement and condition for damaging is analyzed synthetically as well.
出处
《土木工程学报》
EI
CSCD
北大核心
2004年第7期73-77,共5页
China Civil Engineering Journal
关键词
水泥混凝土路面
分形几何学
渗流模型
裂缝形成机制
破坏条件
cement concrete pavement
fractal geometry
seepage model
cracking mechanism
conditions for damaging
