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南水北调中线一期工程总干渠膨胀土试验段工程(南阳段)的抗滑桩,是设计单位根据开挖后揭露出的地质状况,为增加渠坡抗滑稳定性而设计新增的项目。在抗滑桩施工过程中,钻孔施工工艺、混凝土灌注下料和导管提升速度的控制对保证抗滑桩的质量尤为重要。
Anti-slide piles in expansive soil test section (Nanyang section) of the first phase of the Middle Route of South-to-North Water Diversion Project are designed to increase the anti-slide stability of open-cut slopes based on the geological conditions exposed by the design unit after excavation. During the anti-slide pile construction, it is very important to ensure the quality of the anti-slide pile during the drilling process, concrete pouring and pipe lifting speed control.