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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。
Tuen Mun Road is one of the busiest roads in Hong Kong. It has undergone several resurfacing operations during 25 years of heavy traffic. As part of the Tuen Mun Road pavement structure survey, the indoor indirect tensile stiffness modulus test was used to evaluate the residual strength of the pavement and the water immersion treatment was designed according to the high temperature and no-freezing climatic conditions in Hong Kong. The residue indirectly Tensile Modulus Ratio (MRR) analysis of the impact of the old pavement materials to quantitatively analyze the effect of resurfacing. Experimental analysis shows that with the increase of the number of pavement, the MRR increases, and the water resistance of the surface layer and the lower layer in the pavement is enhanced.