改进的规范法计算建筑物基础沉降

Settlement Calculation of Structure Foundation with Improved Specification Method

利用室内固结压缩试验数据及土体常规物理力学参数来推求经验系数ψs,并考虑逐级加载的影响对规范法推荐的计算公式进行改进。结合一维太沙基固结理论,推求某时刻的平均固结度。结合工程实例进行了验证,说明改进的规范法计算公式在工程实践中有较强的实用性,且计算沉降量比较接近实际观测值。

The empirical coefficientψs is calculated from consolidation test data and physical and mechanical parameters of soil. Considering multistage loadings, the settlement calculation formula is amended. Based on one -dimensional Terzaghi consolidation theory, average percent consolidation is calculated. The engineering examples show that the improved specification settlement calculation formula is practical and the settlement calculation values are close to the observation values.