Improvement technique surveying observations of the displacement

Abstract The purpose of the research is to increase the efficiency of work on monitoring deformation processes and shear in the areas of influence of mining activity. The research methodology is based on the analysis of instrumental observations of the objects negatively affected by mining activities. As a result of the research, special attention was focused on the use of innovative instruments for instrumental measurements and software processing the data. The scientific novelty of the obtained results consists in using a comprehensive modern digital and satellite methods for performing instrumental observations on profile line reps, which makes it possible to obtain a more complete feature of the deformation process and information about the current state of the ground surface and other objects located in the research area, which makes it possible to increase the accuracy of the prediction for a certain period of time and quickly verify the dimensions of the displacement zone and its spreading limits. The practical significance of the research is that its results will contribute to ensuring the safe operation of the deposit and the development of more effective measures to protect the environment and mitigate the negative impact of mining activities on the area and buildings located in the zone of their influence. The studies have shown that the automated method of comparing point clouds to sinkhole areas obtained from two digital models can produce significant errors. These errors, when determining the spatial position of points, can reach 10-15 meters. In the case of a “manual” set of picket points, the errors do not exceed 0.1-0.2 m, but the time of data processing increases significantly, i.e., increasing the accuracy of determining the desired values requires a decrease in the efficiency of this process.