随着社会主义建设事业的蓬勃发展,近几年大中城市的高层建筑不断出现。在处理地基方面,钢筋混凝土预制桩被优先采用。国内外对桩的设计大都采用单桩容许承载能力来进行计算,这是完全必要的;但往往忽视了打桩过程中的动力计算。这种动力荷载之大往往导致桩头破坏。 With the vigorous development of socialist construction, high-rise buildings in large and medium-sized cities have continued to emerge in recent years. In dealing with foundations, reinforced concrete precast piles are preferred. The design of piles at home and abroad is mostly based on the allowable bearing capacity of a single pile. This is absolutely necessary; however, the dynamic calculation in the pile driving process is often overlooked. This large dynamic load often leads to damage to the pile head.