季节性冻土区冻胀力的简化算法

Simplified algorithm of frost heaving force in seasonally frozen soil region

针对《水工建筑物抗冰冻设计规范》单位切向冻胀力、单位水平冻胀力以表格形式给出在实际工程应用上存在的计算依赖表格、内插取值误差大、外延值域随意性等问题,通过对冻胀力与冻胀量关系曲线的线型特性分析,采用优化拟合的方法,获得了表达形式简单、取值过程简捷、计算精度高的数学表达式,可在实际工作中推广应用。

Based on the criterion of code for design of hydraulic structures against ice and freezing action, there are many problems for the unit tangential frost heaving force and unit horizontal frost heaving force showed with table in the practical project application,including the dependent form calculation, great interpolation error and casualness extension values, etc. Through the analysis of linear characteristics of the relation curve between the frost heaving force and frost heaving amount, the mathematical expression with the simple form, rapid sampling process and high calculation accuracy is gained by using the optimization fitting method, which could be applied and extended in practical project.