改进阻力系数法的适用性分析

Applicability Analysis of Improved Resistance Coefficient Method

改进阻力系数法是规范推荐的一种土基渗流计算的方法。该文通过GeoStudio有限元分析法和改进阻力系数法的对比分析,提出改进阻力系数法的适用范围,避免该方法被误用而导致设计不合理。根据分析成果,改进阻力系数法适用于简单地层和上部相对强透水层、下部相对弱透水层的双层地层,不应用于上部相对弱透水层、下部相对强透水层的双层地层和复杂地层。

The improved resistance coefficient method is a recommended method for seepage calculation of soil foundation.The purpose of this paper is to propose the application scope of the improved resistance coefficient method through the comparative analysis of the finite element analysis method of GeoStudio and the improved resistance coefficient method,so as to avoid the unreasonable design caused by the misuse of the method.According to the analysis results,the improved resistance coefficient method is applicable to the simple formation,the upper relatively strong permeable layer and the lower relatively weak permeable layer,but not to the upper relatively weak permeable layer,the lower relatively strong permeable layer and the complex formation.