According to three post prestressed concrete continuous box girders,this paper investigates the duct grouting compactness by field inspection.

• 为了解后张法预应力混凝土连续箱梁孔道压浆问题,以3座后张法预应力混凝土连续箱梁为工程背景,采用现场调查方法对箱梁后张法预应力孔道的压浆问题进行了调查研究。