特殊情况下多点位移计监测数据处理方法探讨

Discussion on processing method of monitoring data of rod extensometer in special circumstances

在由于施工或地质缺陷等原因引起最深测点发生移动的情况下,为了得到客观真实的监测数据,对不同的多点位移计监测数据处理方法进行研究。采用了根据监测数据找出相对稳定的测点作为不动点,再以不动点为基准,计算各测点相对于不动点的位移量的方法,并将其计算结果与其他数据处理方法计算结果进行对比。结果表明,该方法能较准确地反映被监测物体(边坡、大坝等)的位移情况。同时提出了相对稳定点的确定方法,以供工程实际应用参考。

We study the different methods of processing monitoring data of rod extensometer in the condition that the deepest monitoring point moves because of construction and geological defects,so as to obtain objective monitoring data.The relatively stable monitoring point is selected as a fixed point according to monitoring data,which is adopted as datum,and displacements of all the other monitoring points related to the fixed point are calculated.The results obtained by the method are compared with those by other methods.It is shown that the proposed method can reflect the displacement of the monitoring object correctly.And the method for determining the relatively stable monitoring point is proposed as well.