京沪高速铁路天津、沧州地区存在不同程度的地表沉降。以京沪高速铁路天津地区沿线的水准观测数据为研究对象,采用反距离加权法、径向基函数法与泛克里格插值法对研究对象进行了空间插值分析,通过精度评定与结果检验发现泛克里格方法能够较好地反映地表趋势面,可以作为研究该区域地表沉降的一种方法。 Beijing-Shanghai high-speed railway Tianjin, Cangzhou area there are different degrees of surface subsidence. Taking Beijing-Shanghai high-speed railway along the Tianjin level as the research object, the spatial interpolation analysis was carried out by using the inverse distance weighted method, the radial basis function method and the ubiquitous Kriging interpolation method. Through the accuracy assessment and the result test, The unglazed Kriging method can better reflect the surface trend and can be used as a method to study the surface subsidence in this area.