The article tells us the constructing technics and the measure for quality control how to backfill sand or soil at the back of the structures by the real backfilling illustration in XiaoXiang freeway.

• 通过孝襄高速公路台背回填的工程实例,重点介绍了桥涵结构物台背回填砂和回填土的施工工艺及质量控制措施。