上海市近年来兴建了数以百计的高层建筑住宅和宾馆,建筑物的高度也已由七十年代的一般为16层以下发展到二、三十层以上。在上海这样饱和软土地基中,为了解决地基承载能力和控制建筑物的沉降量,高层建筑一般采用了打长桩的基础方案,桩长达三、四十米,最长七十余米,有预制钢筋混 Shanghai has built hundreds of high-rise residential buildings and hotels in recent years. The height of buildings has also grown from 16 floors below the 16th floor to more than 20th floors. In Shanghai, a saturated soft-soil foundation, in order to solve the bearing capacity of the foundation and control the settlement of buildings, high-rise buildings generally use the foundation scheme of long-pile piles. The length of piles is 30 to 40 meters and the maximum length is 70 meters. Prefabricated reinforced concrete