岩土与地下工程 2025年 第卷 第22期

DOI: 10.7672 / sgjs2025220051

某深大地下室上浮分析及低净空微型桩抗浮处理措施

沈仁菊¹,武超¹,刘建汉²,贾磊柱¹,张作才³,代先国³,万刚¹,程浩¹,王康生¹

作者简介：

沈仁菊，工程师，E,mail:1778941087@ qq. com

作者单位：

1.中建三局集团有限公司工程总承包公司，湖北武汉 430070; 2.武汉市市政工程质量安全中心，湖北武汉 430070; 3.湖北大学，湖北武汉 430070

基金项目：

∗中建三局科技研发课题（CSCEC3B,2021,10）

摘要：

分析了微型桩施工技术的主要特点及其在既有建筑物中的适用性。针对武汉市某在建工程深大地下室底板的上浮问题，结合该建筑的抗浮措施和地下室上浮原因，采用微型桩作为建筑物抗浮的补救措施。对既有建筑进行抗浮加固改造，由于设计或施工条件的限制，一般要求机械设备在建筑内施工。综合考虑在建建筑物地下室上浮及加固处理措施，提出了微型抗浮桩。实际工程应用表明，微型桩技术适用于既有建筑物的抗浮加固，具有成桩效率高、桩身质量易于保证的特点。
地下室；抗浮；加固；微型桩

English：

This paper mainly analyzes the main characteristics of micropile construction technology and itsapplicability in existing building. Aiming at the floor floating problem of a building under construction inWuhan, combined with the anti,floating measures of the building and the floating reason of the basement,micropile is used as a remedial measure for building floating. However, carry out anti,floatingreinforcement transformation for the bottom plate of existing building, due to the limit of designrequirements or construction conditions, the mechanical equipment is generally required can beconstructed inside the building. Combined with the basement floating treatment and reinforcementmeasures of the building under construction, the technology of micropile is used. Practical engineeringapplication shows that, the micropile technology has good applicability for anti,floating repair for existingbuildings, another characteristic is high efficiency of accomplishing pile, and the quality is easy toguarantee.