用压力灌浆法处理钢筋混凝土灌注桩底以提高灌注桩的竖向承载力是一项新工艺。

Using pressure grouting to treat concrete reinforcement filling pile's bottom to increase the vertical bearing capacity of filling pile is a new technique.

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介绍了CFG桩的一种新的成桩工艺——长螺旋钻孔压力灌浆法，对CFG桩的设计、使用范围和发展趋势作了分析。

The paper introduces a new technology of CFG pile-pressure grouting of long helical drilling hole, and analyses design, service scope and development trend of CFG pile.

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