（上海勘察设计研究院（集团）有限公司， 上海 200093）

［摘要］针对昆山市某高层建筑的不均匀沉降及其引起的建筑物倾斜问题，对其采用锚杆静压钢管桩进行基础加固，加固设计中合理选取锚杆静压桩桩型及桩长，通过反演分析计算，设计了具体的基础加固方案。实施过程中采取带压力停桩、预应力封桩和垫可压缩材料，反压和对压以及充气排水和注膨润土定向扰动等措施控制不均匀拖带沉降的发展，并借助静力水准和传统监测对施工过程实时监测，有效控制了基础加固施工期间的不均匀拖带沉降。最终建筑物沉降及倾斜得到了有效控制。

［关键词］高层建筑；加固；锚杆静压钢管桩；不均匀拖带沉降控制；信息化监测

中图分类号：TU473-1文献标识码：A文章编号：1002-848X(2021)08-0110-05

Exploration and application of uneven towing settlement control in high-rise buildings strengthened by anchor static pressure piles

JIANG Yuechun

(SGIDI Engineering Consulting (Group) Co., Ltd., Shanghai 200093, China)

Abstract:In view of the uneven settlement of a high-rise building in Kunshan city and the building tilt caused by the uneven settlement, the anchor static pressure steel pipe pile was adopted for foundation reinforcement. The pile type and pile length of the anchor static pressure pile were reasonably selected in the reinforcement design, and the concrete foundation reinforcement scheme was designed through inversion analysis and calculation. In the process of implementation, measures such as stopping piles with pressure, sealing piles with prestress, padding compressible materials, back pressure and opposite pressure, aeration and drainage, and directional disturbance of bentonite injection were taken to control the development of uneven towing settlement. The static level and traditional monitoring were used to monitor the construction process in real time, which effectively controls the uneven towing settlement during foundation reinforcement construction. Finally, the settlement and inclination of the building were effectively controlled.

Keywords:high-rise building;strengthen;anchor static pressure steel pipe pile;uneven towing settlement control;information monitoring

作者简介：江岳春，学士，工程师，Email:15618976382@126.com。