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我公司在青岛东部承接了某沉管扩底灌注桩工程。该工程由于设计有地下室，其结构较复杂，设计桩顶标高有6种之多，钢筋笼设计为半笼（悬笼），这对于合理控制桩顶和笼顶标高以及施工都增加了困难。合理控制桩顶和笼顶标高，关系到工程质量。因此，必须采取措施加以控制。IXi程
Our company undertook some immersed tube grouting piles in the eastern part of Qingdao. Due to the design of a basement, the project has a complex structure, and there are six kinds of design for the top elevation of the pile. The cage is designed as a half cage (suspended cage), which makes it difficult to reasonably control the elevation of the pile top and cage top and construction. Reasonable control of pile top and cage top elevation relates to project quality. Therefore, measures must be taken to control it. IXi Cheng