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针对国家重点工程淮河入海水道淮阴衡河涵闸搅拌桩应用中的一些问题进行分析,发现该工程搅拌桩不达标的原因是软土中细颗粒含量较高引起的。通过工艺改进、现场调试和钻孔检测,提出了适合该工程搅拌桩施工工艺、质量检测和评价标准,解决了在苏北地区黏性很大的软土中搅拌桩成桩质量难于保证的问题。
According to the analysis of some problems in the application of the mixing piles of the Huai River Estuary into the sea of the Huaihe River into the sea, it is found that the reason for the non-compliance of the mixing piles is that the content of fine particles in the soft soil is high. Through process improvement, site commissioning and drilling inspection, the construction technology, quality inspection and evaluation criteria for mixing pile in this project are put forward, which solves the problem that the quality of mixing pile is difficult to be guaranteed in the viscous soft soil in northern Jiangsu Province .