预应力混凝土管桩机械快速接头作为一种新型的管桩连接技术，近年在工程中时有使用。
As a new joist technique of concrete pipe pile, the prestressed concrete pile mechanical bond express joint has been used in engineering nowadays.
主梁后浇结构层与墩顶梁端湿接头浇筑顺序以及墩顶负弯矩预应力筋张拉顺序是简支变连续梁桥施工的关键工序。
The constructing procedure of the monolithic layer and the wet joints of the girders and the orders of straining the pre-stress force are the key orders of the simply supported-continuous system.
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