用有限元分析方法对桶形基础负压沉贯过程中渗流场进行动态模拟 ,提出桶形基础沉贯阻力计算方法和土体稳定有限元计算方法 ,并提出桶内土体稳定性判断准则。计算结果表明方法是合理的 ,具有工程实用性。 The finite element analysis method was used to simulate the seepage field during the negative pressure penetration of the bucket foundation. The calculation method of the settlement resistance of the bucket foundation and the finite element method of soil stability were put forward, and the judgment criterion of soil stability was proposed. The calculation results show that the method is reasonable and practical.