Optimization of locating robotic total stations for determining the deformations of buildings and structures

Abstract

Monitoring deformation processes is directly related to safety and carried out therefore with high measurement accuracy. In this case, high-precision equipment and tools are accordingly used. Following the interstate standard of measuring deformations of buildings and structures foundations on sandy clay soils, the permissible error in measuring displacements should not exceed 1 mm with calculated values of vertical or horizontal displacements up to 100 mm. In this regard, monitoring the structures’ deformations is carried out under a program that provides selecting the initial geodetic signs location. Currently, the use of robotic stations for tracking the displacements of various objects’ elements has gained wide popularity. Of course, permanent observations look preferable, first, because there aren’t any intervals in observations during which the negative development of the process can be missed. However, the matter of locating the station remains relevant. The authors provide an analysis of approaches to solving this task. The use of Distance-Angle resection is considered. The constraints of its use are shown. The results of applying the least-squares method are presented. A particular practical example demonstrates the methodology of selecting and evaluating the location accuracy of a monitoring station.