上海目前建造的高层建筑均采用桩基加箱形基础。桩基按其施工方法可分打入桩(包括压入桩)和灌注桩二种。打入桩型有:预制钢筋混凝土桩、高强预应力管桩、钢管桩和H型钢桩等。打入桩施工简便、桩制作质量可靠、施工速度快,尤其是预制混凝土桩,因其价格便宜而被广泛应用,但打入桩施工振动噪音、挤土效应严重,影响周围环境。钢管桩属排土量少的桩型,穿透力强、承载力高,造价也高,但 The high-rise buildings currently under construction in Shanghai are all pile-based and box-shaped. The pile foundation can be divided into piles (including piles) and piles according to its construction method. The types of piles that are driven are: prefabricated reinforced concrete piles, high-strength prestressed pipe piles, steel pipe piles, and H-shaped steel piles. The construction of driven into piles is simple, the quality of piles is reliable, and the construction speed is fast. In particular, precast concrete piles are widely used due to their low price, but the vibration noise and soil compaction effect of pile driving into piles are serious and affect the surrounding environment. The steel pipe pile is a pile type with a small amount of soil discharge, strong penetrating power, high bearing capacity, and high cost, but