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基于岩土材料的流变特性,将位移监测数据分解成稳定变形、时效变形和测量误差3部分,然后利用数理统计知识分别推导出当岩土体处于变形稳定阶段和时效变形阶段时的样本方差表达式,从而提出岩土体处于不同变形阶段时的监控指标。通过对某边坡工程长期位移监测数据的研究表明,利用该指标能较好的刻划出边坡的变形阶段,对于分析不同情况下的位移监测数据具有一定的指导作用。
Based on the rheological properties of geomaterials, the displacement monitoring data is decomposed into three parts: stable deformation, aging deformation and measurement error. Then, the variance of the sample when the rock mass is in the stage of deformation stabilization and aging deformation is deduced respectively by mathematical statistics Expression, so as to put forward the monitoring index when the rock mass is in different deformation stages. The study on the long-term displacement monitoring data of a slope project shows that the index can be used to characterize the deformation stage of the slope, which is of guiding significance in analyzing the displacement monitoring data under different conditions.