【摘要】 为探究黄土地区浅基础建筑纠倾加固的新方法，以兰州市某发生不均匀沉降的2层办公楼为研究对象，分析沉降成因后，创新提出砖基础两侧新增倒L型梁、柱下独立基础对角线顶升的新型纠倾结构及限位迭代顶升方法.经抗弯、抗剪、抗冲切承载力验算确定方案后实施.监测显示原建筑西南侧Q₁、Q₂和Z₁处相对沉降量较大，其中Q₁、Z₁处累计沉降超40 mm,局部倾斜率0.7%;纠倾后Q₁、Z₁顶升量均为29 mm,倾斜率降至0.17%,满足规范安全要求，且施工周期短、工艺简单、过程稳定.更多还原

【Abstract】 In order to explore a new tilting correcting method of shallow foundation building in loess areas, a 2-story office building with uneven settlement in Lanzhou City was taken as the research object. After analyzing the causes of settlement, a new type of correction structure was proposed, consisting of inverted L-shaped beams added on both sides of the brick foundation and independent foundation diagonal lifting under the column, combined with a limit iteration lifting method. After verifying the bending, shear, and impact shear bearing capacities, the proposed scheme was implemented. Monitoring results show that the relative settlement at Q₁, Q₂, and Z₁ on the southwest side of the original building is relatively large, with a cumulative settlement of over 40mm and a local tilt rate of 0.7% at Q₁ and Z₁. After correction, the lifting amount of Q₁ and Z₁ are both 29 mm, reducing the tilt ratio to 0.17%, which meets the safety requirements of the specifications. The construction process was characterized by a short duration, simple procedures, and stable execution.更多还原