软土地基构筑物纠倾加固技术研究

岩土与地下工程 > 2025年第卷第11期

DOI: 10. 7672 / sgjs2025110058

软土地基构筑物纠倾加固技术研究

作者：张震¹,崔军¹,王鸿运¹,冯家齐¹,刘黎明¹,张家源²

作者简介：

张震,工程师,E⁃mail: 1319631770@ qq. com

作者单位：

1. 中冶武勘工程技术有限公司,湖北武汉 430080; 2. 宝钢德盛不锈钢有限公司,福建福州 350600

摘要：

软土地区常因地基处理不当,在构筑物使用寿命内出现倾斜和不均匀沉降,存在严重的安全隐患. 以沿海地区某软土地基构筑物纠倾加固工程为例,提出水平顶推+外扩承台+补桩加固联合方案. 研究结果表明,水平顶推对软土地区构筑物纠倾作用明显,纠偏前后最大倾斜率差值达到 15. 59‰. 外扩承台和新增锚杆静压桩可加固地基基础,工后沉降速率≤0. 04mm/ d,满足相关要求.

关键词：地基;软土;锚杆静压桩;纠倾;加固;沉降

English：

In the soft soil area, due to improper foundation treatment, tilt and uneven settlement oftenoccur during the service life of the structure, and there exist serious safety hazards. Taking therectification and reinforcement project of a soft soil foundation structure in a coastal area as an example, acombined scheme of horizontal jacking + external expansion of pile cap + supplementary pilereinforcement is proposed. The results indicate that the horizontal jacking has an obvious rectificationeffect on the structure in soft soil areas, and the maximum inclination rate difference reaches 15. 59 ‰before and after rectification. The expanded pile caps and the newly added anchor static pressure pilescan reinforce the foundation. And the post⁃construction settlement is less than or equal to 0. 04mm / d,which meets the relevant requirements.

[1]	郭晓军. 顶升法在房屋纠偏加固中的实际应用[D]. 南京:东南大学,2019.GUO X J. The practical application of jacking method in therectification and reinforcement of buildings [ D ]. Nanjing:Southeast University, 2019.
[2]	孟雄飞. 既有建筑物工程事故分析及顶升纠偏技术研究[D]. 北京:中国地质大学,2020.MENG X F. Analysis of existing building engineering accidentsand research on jacking correction technology [ D]. Beijing:China University of Geosciences, 2020.
[3]	唐君,雷飞龙,江宁. 微型桩技术在既有建筑地基基础加固改造工程中的应用 [ J]. 施工技术 ( 中英文), 2022, 51 ( 2):79⁃82.TANG J, LEI F L, JIANG N. Application of micropiletechnology in the reinforcement and renovation of existingbuilding foundations [ J]. Construction technology, 2022, 51(2): 79⁃82.
[4]	李阳. 框架结构断柱顶升纠偏方案优化与力学性能研究[D]. 张家口:河北建筑工程学院,2020.LI Y. Optimization and mechanical performance study on thedeviation correction plan for broken columns in frame structuresby jacking [D]. Zhangjiakou: Hebei University of Architecture,2020.
[5]	顾晓捷. 大直径锚杆静压钢管桩加固纠偏软土地基建筑应用技术研究[D]. 南京:东南大学,2021.GU X J. Research on the application technology of large diameteranchor rod static pressure steel pipe pile strengthening andrectification of soft soil foundation buildings [ D ]. Nanjing:Southeast University, 2021.

岩土与地下工程 > 2025年 第卷 第11期