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复杂液化地基下大直径PHC管桩沉桩技术应用研究

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随着大直径PHC管桩在地基基础建设中的不断应用,如何保障管桩在复杂地基条件下的成桩质量和承载能力,逐渐成为基础工程建设者越来越关心的问题.针对太原武宿国际机场T3航站楼工程复杂基础结构施工,通过合理布置挤密碎石桩,同时科学设计大直径PHC管桩参数及沉桩工艺,成功消除了桩间土的液化性质,保障了成桩质量,最终确保了复杂液化地基下大直径PHC管桩的承载能力.
APPLICATION RESEARCH OF LARGE DIAMETER PHC PIPE PILE SINKING TECHNOLOGY UNDER COMPLEX LIQUEFACTION FOUNDATION
With the continuous popularization of large diameter PHC pipe piles in foundation construction,how to ensure the pile quality and bearing capacity of pipe piles under complex foundation conditions has gradually become a more and more concerned issue for foundation engineering builders.Aiming at the complex infrastructure construction of terminal 3 of Taiyuan Wusu international airport,reasonable arrangement of compacting gravel piles,scientific design of parameters and pile driving technology of large diameter PHC pipe piles have successfully eliminated the liquefaction property of soil between piles,guaranteed the pile quality,and finally ensured the bearing capacity of large diameter PHC pipe piles under complex liquefaction foundation.

large diameter PHC pipe pilecomplex foundationliquefied foundationpipe pile sinking pile

詹新彬、刘成、蔡永鑫、范金鹏、徐曈

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北京城建集团有限责任公司,北京 100088

山西航空产业集团有限公司,太原 030000

大直径PHC管桩 复杂基础 液化地基 管桩沉桩

2024

建筑技术开发
北京市建筑工程研究院

建筑技术开发

影响因子:0.351
ISSN:1001-523X
年,卷(期):2024.51(3)
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