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实践证明,桩基工程施工中由于下列种种原因可能出现桩顶偏移原设计位置的现象。例如: 1.沉桩后进行大面积基坑开挖,改变了土体中应力平衡状态,从而引起桩的偏移:
Practice has proved that the pile roof may be displaced from the original design position due to the following reasons during the construction of the pile foundation. For example: 1. Excavation of a large area of foundation pit after a pile is piled changes the state of stress balance in the soil, causing the pile to deflect: