Prestress losing and Compensate Method in the Reinforcement Project of Retaining Wall
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摘要: 以104國道預應力錨桿加固加筋土擋土墻為例,通過數值模擬和實驗的方法,討論了二次補償張拉解決此類問題的可行性.結果表明,一次張拉一段時間內進行二次補償張拉,不僅能夠有效消除相鄰錨桿間的影響,而且還能抑制錨桿的預應力衰減.對于土體預應力錨固工程,其錨桿預應力設計和施工應充分考慮預應力損失,在實際施工中可以應用二次補償張拉手段解決這一問題.Abstract: The feasibility of using the second compensate tension to solve the prestress-losing problem was analyzed with the methods of numerical analog calculation and experiment according to the reinforcement project of 104 National Road in Shandong Province. The result indicated that the reciprocity of the closer anchor and the prestress attenuation can be effectively eliminated using the second compensate tension. It is concluded that the problem of prestress-losing should be considered in the course of design and construction and be solved with the method of the second compensate tension in the soil reinforcement project of prestressed anchors.
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Key words:
- reinforced retaining wall /
- second compensate tension /
- prestress /
- anchor /
- reinforcement
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