Abstract:In the process of level retest data analysis, in view of the destruction of the benchmark point, the data continuity is poor and the utilization rate is reduced. In this paper, the vertical point variable of the same name is selected in the adjacent year. The distance, the interpolation point and the fault information at the observation point are used to determine the weight, construct a polynomial interpolation model, interpolate the vertical variables in the measurement area, enrich the data volume of the measurement area, and improve data continuity and utilization. We construct the Kalman filter model by constructing the state vector with the vertical shape variable, deformation rate and deformation acceleration rate of each interpolation value, and filtering the range of the measurement area. Using the filtering results, we analyze the vertical deformation characteristics of the Shanxi-Hebei-Inner Mongolia border area since 1984 and compare them with previous research results. The experiment proves the method is effective and can be applied to the study of earthquakes.
CHANG Ming,YIN Haiquan. The Analysis of Vertical Deformation Characteristics in Shanxi-Hebei-Inner Mongolia Area Using Precise Leveling Data[J]. jgg, 2020, 40(10): 1079-1083.