用土的弹塑性模型和有限元法确定桩的荷载—沉降曲线

Relationship between Load and Settlement of Piles Caculated by Using Soil Elasto-Plastic Model and Finite Element

讨论了由三轴固结试验和三轴剪切试验结果确定弹塑性模型参数的过程，用有限元法计算钻孔灌注桩荷载与沉降的关系，并与现场载荷试验结果进行了对比。结果表明：在容许承载力范围内，计算沉降值与实测值较接近。如能分层取土建立模型，其计算方法用于岩土工程实践是可能的。

The parameter of the elasto-plastic model based on triaxial consolidation test and triaxial shear test is first studied.Then the relationship between load and settlement of bored piles is calculated by using finite element method. Compard with the result of a field loading test,the settlement calculated is approximate to the settlement of the test in the allowable bearing capacity. If the models of other soils are estabeished,it is possible that the method of calculation mentioned in this paper is applicable in geotechnical engin.