近年来,以再生混凝土、再生砖、再生砂浆等材料为主的建筑垃圾已广泛应用于我国交通工程路基填筑中。路基承载力和稳定性主要取决于路基填料的剪切强度,而建筑垃圾填料颗粒具有级配范围广、强度低、成分复杂等特点,在服役期荷载作用下的剪切特性与传统砂石填料具有显著差异。从建筑垃圾再生填料剪切特性、建筑垃圾-细粒土混合填料剪切特性、建筑垃圾再生填料-土工材料界面剪切特性三个方面对现有研究成果梳理。综合现有研究,发现建筑垃圾颗粒破碎规律对剪切特性影响机制尚待完善；缺乏建筑垃圾在掺入不同细粒土后性能提升差异的对比分析；需要深入探究建筑垃圾土-筋界面剪切机理,从而为发展我国绿色低碳交通提供重要的理论支持和技术储备。

In recent years, construction waste of recycled concrete, brick and mortar has been widely used in the roadbed construction in our country. The bearing capacity and stability of the subgrade mainly depend on the shear strength of the subgrade filler, and the construction waste filler particles have the characteristics of wide grading range, low strength, complex composition, etc., and the shear characteristics under the service load are significantly different from that of the traditional sand and gravel filler. The existing research results are reviewed from three aspects: shear characteristics of construction waste recycled fillers, shear characteristics of construction waste - fine grained soil mixed fillers, and interface shear characteristics of construction waste recycled fillers and geomaterials. Based on the existing studies, it is found that the mechanism of the effect of particle breakage on the shear characteristics of construction waste is still to be perfected. Lack of comparative analysis of the difference in performance improvement of construction waste mixed with different fine soil; It is necessary to deeply explore the soil-reinforcement interface shear mechanism of construction waste, so as to provides important theoretical support and technical reserve for the development of green and low-carbon transportation in China.

U416.1

国家重点研发计划项目(2023YFC3009400)；浙江省自然科学基金项目(LQ22E080009)；国家自然科学基金项目（52278418）