在难以锤击打入砂质土层地区的桩,采用水冲沉桩工艺已逐渐成为有效的沉桩方式,但在实施中出现桩的断裂情况较多。经对七个码头工程的调查,在水冲沉桩的2027根预应力混凝土桩中,产生断裂的桩数达242根,占沉桩总数的11.9％。桩的断裂一般分为横裂和纵裂两类。其断裂的比例分别为总沉桩数的1.3％和10.6％。 In the difficult to hammer into the sandy soil layer of the pile, the use of sinking pile sinking process has become an effective method of pile driving, but in the implementation of pile fracture occurs more. After the investigation of seven docks, in the 2027 prestressed concrete piles of water-sinking pile, the number of broken piles reached 242, accounting for 11.9% of the total number of piles. Pile breakage is generally divided into two types of longitudinal and longitudinal cracks. The percentage of fractures was 1.3% and 10.6% of the total number of piles.