关于渡槽桩基承载力的计算

现行水工规范中没有专门对桩基础承载力进行计算的规定,为了对工程设计提供科技支撑,应寻求一种较为合理的设计理论,并将其应用到实际工程中,以保证基础结构的安全性与合理性。针对所选桩基布置及地质情况,采用相关工程规范的桩基承载力公式进行计算,结果有所差别,最终结果有所出入主要是因为安全系数的取值不同以及地质力学参数指标的修正所造成的。考虑到架空渡槽和桥梁结构有很多相似之处,因此认为桩基承载力可以根据《公路桥涵地基与基础设计规范》进行计算。

Bearing Capacity Calculation for Pile Foundation of Aqueduct

There were not special provisions about the bearing capacity calculation for pile foundation of aqueduct in actual hydraulic codes. A kind of more reasonable design theory should be provided for correlative engineering design and applied to the practice for ensuring safety and rationality of the foundation structures. Based on the pile foundation layout and geological condition, the bearing capacity for pile foundation was calculated according to the related specification. The results could have some discrepancy owing to different safety factors selection and geological parameter modification. As the structure of aqueduct was much similar to the structure the bridge, we recommended the calculation of the bearing capacity for pile foundation be carry out based on "the Specification for the Highway Bridge Culvert Foundation Design".