据统计,大多数软土层地基的多层住宅建筑沉降较大,往往呈现凹陷形不均匀沉降。当沉降到一定限度时,在建筑物底层门窗洞口角部出现斜裂缝或八字型裂缝、少数的可发展到二层和三层,此类裂缝大多数在房屋建成后不久出现,并随着时间的增长而加大加多,待地基下沉稳定后,不再变化。就如何提高多层住宅建筑设计与施工,加强防冶地基产生不均匀沉降作一下分析总结。 According to statistics, most of the soft ground subgrade multi-storey residential building settlement, often showing the uneven depression settlement. When settling to a certain extent, there are diagonal cracks or zigzag cracks in the corners of the openings of the doors and windows in the ground floor of buildings, and a few can be developed to the second and third floors. Most of these cracks occur shortly after the houses are built, Increase more and more, until the foundation settles stable, no longer change. On how to improve the design and construction of multi-storey residential buildings, to strengthen the prevention and treatment of uneven subsidence caused by foundation for analysis and summary.