高层建筑荷载大,如果地基软弱,地下水位高,采用天然地基承载力不足,沉降量过大,再加上高层建筑具有很大竖向和水平荷载,而且限制倾斜严格,所以高层建筑一般均采用桩基础。实践证明,桩基础承载能力大,沉降量小,稳固性强。在高层建筑的桩基础施工技术方面,我国有了很大的发?.. High-rise buildings have large loads. If the foundation is weak, the groundwater level is high, the natural foundation is not enough, and the settlement is too large. In addition, high-rise buildings have large vertical and horizontal loads and the slope is strictly limited, so high-rise buildings are generally used. Pile foundations. Practice has proved that the pile foundation has large bearing capacity, small settlement, and strong stability. In terms of pile foundation construction technology for high-rise buildings, China has made a lot of progress.