摘要
首先阐述引起沥青混凝土路面裂缝的原因可以归结为荷载性裂缝和非荷载性裂缝两大类,温度裂缝和反射裂缝是非荷载裂缝的两种主要型式。接着从非荷载性裂缝的角度出发,详细分析了温度收缩裂缝、温度梯度裂缝和反射裂缝形成的机理,指出温度梯度是引起路面横向裂缝的主要原因,而反射裂缝是半刚性基层裂缝和温度裂缝综合作用的结果。
Firstly, the paper states that the cause of the cracks of bituminous concrete pavement can sum up two great categories: loading cracks and non-loading cracks. Temperature cracks and reflect cracks are two kinds of main types of non-loading cracks. Secondly, from the angle of non-loading cracks it analyzes in details the formed mechanism of temperature shrinkage cracks, temperature gradient cracks and reflect cracks, points out that temperature gradient is the main cause of transverse cracks of pavement, while reflect cracks are the results of comprehensive action of semi-rigid base cracks and temperature cracks.
出处
《城市道桥与防洪》
2005年第6期150-152,共3页
Urban Roads Bridges & Flood Control
关键词
道路工程
沥青混凝土路面
温度裂缝
反射裂缝
收缩应力
极限强度
road engineering, bituminous concrete pavement, temperature cracks, reflect cracks, shrinkage stress, ultimate strength
