预应力管道真空辅助压浆工艺是提高后张预应力混凝土结构安全度和耐久性的有效措施。
The prestressing duct vacuum grouting workmanship is an effective measure for improving the safety and durability of the post-tensioning concrete structures.
真空压浆是后张预应力混凝土结构施工中的一项新技术，已经越来越广泛地应用于工程实践中。
Prestressed construction technology of the box girder concrete of the bridge and the vacuum grouting technology;
后张预应力混凝土空心板是一种高效预应力空心板，目前国内尚未对其结构性能进行系统研究。
Post tensioned prestressed concrete hollow slab(PTPCHS) is one of high strength prestressed concrete hollow slab, and its construction performance is still unknown yet.
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