基于灰色关联理论的既有地基载荷试验数据合理性分析

Rationality Analysis of Existing Ground Load Test Data Based on Gray Relational Theory

贵州某既有地基土的载荷试验数据不能满足规范要求,为对数据进行取舍,尝试运用灰色关联理论,以承载力特征值为参考数列,密度、含水率、液限、塑限为比较数列,通过与密度关联度的大小,选取了较为合理的试验数据组合,避免了增补试验,降低了载荷试验的时间和经济成本。

The gray relational theory is used to compare the characteristic values of the bearing capacity,density,specific gravity,water content,liquid limit and plastic limit,since the load test data of a certain foundation soil in Guizhou cannot meet the requirement of specification.Through the size of the correlation degree with the density,a more reasonable combination of test data is selected to avoid the additional test,reducing the load test time and economic costs.