空间数据插值方法及其在填筑碾压检测中的应用研究

Study on spatial data interpolation and its application to quality test of embankment fill and compaction

空间数据插值方法广泛应用于散乱空间数据网格化处理。本文介绍了几种常用的空间数据插值方法,针对路基填筑碾压试验采集的空间数据,探讨了常用空间数据插值方法的有效性,得出了克里金插值法(球形模型)最佳的结论,并证实了其用于检测摊铺面平整度以及摊铺层厚的可行和可靠性。

Spatial data interpolation is widely used to scattered spatial grid data.In this paper,firstly 5 frequently used spatial data interpolation methods are introduced,and then their validity is investigated through the spatial data captured by the experiments of embankment fill and compaction.It is shown that the Kriging interpolation with sphere model is the best.Finally,the feasibility and reliability of the smoothness test of fill surface and thickness of fill layer with the Kriging interpolation is demonstrated.