三岔双向挤扩灌注桩施工技术在某工程中的应用

摘要

Based on some engineering examples, the author analyses some key construction technologies and technical requirements of DX piles, proving that increasing the vertical compression strength improves the anti-horizontal force and uplift resistance of the base pile. Also proven is that, using this technique, the building structure is more stabilized with settlement and deformation reduced.%　　通过工程实例分析了三岔双向挤扩灌注桩(简称DX桩)的施工工艺和技术要求；经静荷载试验验证了基桩的竖向抗压承载力、抗水平力及抗拔力都大大提高；结合提出的施工过程中相应的质量控制措施。 DX桩能够使建筑结构更加稳定，沉降变形小，有节约材料，降低工程成本的良好效果。