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介绍兰州市东岗立交桥东引道南北两侧挡墙采用预应力对拉锚索加固的成功经验 ,在工程中采用一些简单有效的施工方法 ,以保证成孔精度和注浆质量 ,确保张拉成功
Describe the successful experience of using prestress to reinforce the anchorage cable on the north and south sides of the east and south sides of the Dongdao overpass in Lanzhou City. Some simple and effective construction methods are adopted in the project to ensure the precision of hole formation and grouting quality and ensure the tension success