在公路工程中,由于桥涵台背处的回填是路基填土与桥涵结构物的衔接部分,其与路基、桥涵结构物本身间产生的不均匀沉降,会造成路基及路面裂缝、桥头跳车等通病,将直接影响行车的舒适感及道路的使用寿命。因此,在工程施工中必须高度重视桥涵构筑物的台背回填质量。本文结合台背回填的施工经验,从影响回填质量主要原因、质量控制要素、质量控制办法几个方面谈谈台背回填的质量控制。 In highway engineering, the backfilling at the back of bridge and culverts is the connecting part between the subsoil and bridge-culvert structure. The uneven settlement caused by subgrade and bridge-culvert structure itself will cause cracks in subgrade and pavement, Common problems, will have a direct impact on driving comfort and road life. Therefore, we must attach great importance to the backfill quality of bridges and culverts in construction. Combined with the construction experience of backfill, this article discusses the quality control of backfill from several aspects that affect the quality of backfill, quality control elements and quality control measures.