Development of an algorithm for choosing a method and geodetic equipment depending on the velocity of landslide displacements, by the example of the Miatlinskaya HPS

Abstract

The article is devoted to the relevant topic of observations over landslides by means of geodetic methods. The purpose of the study is to identify the relationship between such parameters of landslide as the velocity of landslide displacements and the value of the root mean square error (RMSE) of determining the displacements of a landslide. The current regulatory documentation contains the re-quirements for the value of the RMSE for determining landslide displacements, equal to 20 mm in plane and 10 mm in height, without taking into account the velocity of the landslide. The paper assess-es the accuracy of geodetic methods on the example of landslide parameters near the Miatlinskaya hydroelectric power station (HPS) and presents an algorithm for choosing a method and geodetic equipment depending on the velocity of landslide displacements. The results of the provided study confirm the existence of a direct relationship between the velocity of landslide displacements and the magnitude of the RMSE value for determining the displacements of a landslide, and emphasize the importance of taking this dependence into account when conducting engineering work on observations of landslide-hazardous slopes.