预应力离心方桩的抗弯性能和承载力试验研究

通过预应力离心方桩桩身抗弯试验,研究了这种新型桩的抗弯性能,为制定吊桩方案提供依据,同时提出可以将预应力离心方桩用作基坑支护桩。将预应力离心方桩和预应力混凝土管桩作单桩承载力的对比试验,试验结果及分析表明,预应力离心方桩具有较强承载性能和较好的经济效益,在工程中可以代替预应力管桩使用,也可以同时使用预应力离心方桩和预应力管桩,充分利用它们各自的优点。

Experimental Research on Flexural Performance and Bearing Capacity of Prestressed Concrete Square Pile

Flexural performance of prestressed concrete square pile was researched by experiment, which provided a basis for working out the scheme of hanging a pole. A conclusion that prestressed concrete square pile can be used in the retaining and protecting of deep foundation was got; the conclusion that prestressed concrete square pile had stronger bearing capacity and better economy benefit than prestressed concrete pipe pile could be reached by contrasting prestressed concrete square pile with prestressed concrete pipe pile on bearing capacity test of single pile. In the engineering, prestressed concrete pipe pile could be replaced by prestressed concrete square pile or these two kinds of piles could be put into use at the same time which can display respective merit.