【摘要】 屯门路是香港最繁忙的道路之一 ,在 2 5年大交通量的营运期间 ,经历了数次重新铺面。作为屯门路路面结构调查的一部分 ,采用了室内间接拉伸劲度模量试验评价了该路的路面剩余强度 ,并根据香港地区高温和无冰冻的气候条件设计了浸水处理方法 ,通过残留的间接拉伸模量比 MRR分析了对旧路面材料的影响 ,从而定量地分析了重新铺面的效果。试验分析显示 ,随着铺面次数的增加 ,MRR增大 ,路面中面层和下面层的抗水损能力增强。更多还原

【Abstract】 Tuenmun Highway is one of the most heavily trafficked major trunks in Hong Kong Several resurfacing treatments have been done during 25 years of operation As a part of Investigation of Pavement Structure Capacity at Tuenmun Highway,this study focuses on the analysis of resurfacing effectiveness and evaluation of residual pavement properties The residual structure capacity of this road is evaluated by using indirect tensile stiffness modulus(ITSM) A kind of moisture induced evaluation method is developed based on the climate in Hong Kong By using this method and MMR,residual stiffness modulus ratio tested by ITSM,the effect of moisture on pavement materials and effectiveness of resurfacing are analysed The results show that M RR increases as the number of time of resurfacing increases,the resurfacing has a positive effect on better moisture resistance更多还原