The selection of parameters and control points in the geotechnical monitoring system

Abstract

This article proposes an approach to the organization of the monitoring of geotechnical systems, which allows to increase the effectiveness of the automated control of destructive processes in geotechnical systems. The effectiveness of control is achieved by optimizing economic costs and technical constraints. The technical parameters of an automated geotechnical monitoring system are determined by the cost and importance of controlled objects. The criterion of optimality is the criterion of minimizing costs when implementing a geotechnical monitoring system with a constant value of possible damage. Possible damage in the geotechnical system during the development of destructive processes is expressed in monetary terms. The costs of implementing a geotechnical monitoring system are determined based on its cost, fixed costs for its maintenance, as well as technical parameters. The technical parameters in assessing the cost of implementing a geotechnical monitoring system are: the cost of measuring one controlled parameter, the number of measurement points, the cost of skipping the development of destructive geotechnical processes, the cost of a false alarm system. The proposed approach to optimizing the cost of implementing a geotechnical monitoring system is based on the monitoring method at key control points with a choice of bifurcation parameters. The proposed approach for optimizing the geotechnical monitoring system was tested in the city of Murom, Vladimir Region, and the Russian Federation while observing the development of suffusion processes of technogenic origin. The results of practical testing showed the possibility of reducing the cost of monitoring organization while maintaining control accuracy.

Decision Making in Geotechnical Monitoring Systems

“…The choice of controlled parameters is based on a modular model (the approach is described in [16]). The selection of the measured parameters is carried out from the composition of the controlled parameters based on the author's algorithm and the optimization criterion for the cost/damage indicator [8]. • The control zone is selected based on the expression (1).…”

“…However, insignificant factors can become significant with the development of the geotechnical system and an increase in the anthropogenic load on the geological environment [5][6][7]. At the same time, it is not possible to provide complete a priori information about the state of all system components at the design or operation stage of a geotechnical system or its individual sections using monitoring systems, which is due to technical and economic limitations [8]. Thus, the consequences of making technical and managerial decisions in some cases can be negative and are of a probabilistic nature.…”