结合工程实例分析了预应力管桩产生偏位的原因，介绍了预应力管桩偏位的处理方法。

Based on an engineering example, the reason of sloping prestressed pipe piles (PPPs) and the treatment method for the sloping PPPs are given.

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根据桥墩桩基施工现场的具体情况，通过理论计算，分析了两基桩产生偏位的主要原因。

The main causes for the deviation of two bridge piles were analyzed by theoretical analysis, taking into consideration of the actual conditions of the construction site of the bridge piles.

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结果：下颌偏位的健康有牙颌者中，在颌位矫正前后头部、肩部、腰部姿势变化者约有50%；

Results: In frontal cephalograms, 50% of subjects were found the changes of postures of head, shoulder and waist after treatment.

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