基于离散沉降观测的城市地面沉降监测

Research on Urban Ground Settlement Monitoring Based on Discrete Settlement Observation

由于离散观测点沉降数据无法全面反映城市沉降状况,探讨了利用大量离散观测点沉降观测数据进行城市地面沉降监测的方法。设计了利用大量沉降观测数据进行空间插值计算的城市地面沉降监测技术流程;提出了基于交叉验证的城市地面沉降空间内插模型的选取方法;并以某县级市为例,利用该方法对城市地面沉降进行了计算和可视化。结果表明,该方法有效可行,操作性高,具有广泛的应用前景。

Urban ground settlement is unable to be fully reflected bysettlement data at discrete observation stations. In this paper, an urban ground settlement monitoring approach with large volume discrete settlement observation data was proposed. An urban ground settlement monitoring technique flowchart based on spatial interpolation with huge amount observation data was designed. And then, the urban ground subsidence spatial interpolation model selection method based on crossvalidation was presented. The settlement monitoring experiment results of a county-level city show that the proposed approach is not only effective, operational high, but also has a wide range of applications.