使用有限元软件Abaqus进行数值模拟,分析沥青涂层不同分布范围对不同堆载下钢管单桩和桩周土体之间的位移影响。研究结果表明:在中性点以上的桩身加沥青涂层后中性点的位置会下降31.4%,并且可以有效的减小桩体的位移,提高钢管桩的承载能力。堆载作用下桩和桩周土体沉降变化较大,随着堆载等级的增加桩端沉降量为34.3mm~507.8mm,土体表面沉降量为87.7mm~882.9mm,堆载过大会严重降低桩基的承载能力。 The finite element software Abaqus was used to simulate the influence of the different distribution range of asphalt coating on the displacement between the single pile and the soil around the pile under different pile loading. The results show that the position of the neutral point above the neutral point with asphalt coating will decrease by 31.4%, and the displacement of the pile can be effectively reduced and the bearing capacity of the steel pipe pile increased. The settlement of the soil under the pile loading is larger than that of the pile around the pile. The settlement of the pile tip is 34.3mm ~ 507.8mm with the pile loading level increasing, the surface settlement of the soil body is 87.7mm ~ 882.9mm, Lower the carrying capacity of pile.