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在后张法预应力混凝土桥梁施工中,需要进行孔道压浆。在孔道内进行压浆可以预防预应力筋的腐蚀,同时可以提高结构混凝土与预应力钢筋之间的粘结力。真空压浆技术是孔道压浆施工中广泛采用的一种技术,本文结合具体的工程实例,探讨真空压浆技术在预应力混凝土桥梁施工中的应用。
Post-tensioned prestressed concrete bridge construction, the need for pore pressure grouting. Grouting in the tunnel can prevent the corrosion of the prestressing tendons and at the same time can improve the bond between the structural concrete and the prestressing tendons. Vacuum grouting technology is widely used in the construction of pore pressure grouting. This paper discusses the application of vacuum grouting technology in the construction of prestressed concrete bridges with concrete engineering examples.