Belgorod State University, Belgorod, Russia:

E. V. Leontieva, Associate Professor, Candidate of Geographic Sciences, leonteva@bsu.edu.ru

Belnedra, Belgorod, Russia:
V. N. Kvachev, CEO, Candidate of Engineering Sciences

The article presents the concept of hydrogeological monitoring automation. The concept includes substantiation of monitoring systems with regard to permeation fluid dynamics and pore pressure distribution in 3D space; multilevel system; measurement process digitalization; promptness of data reading and transfer along telecommunication channels; dispatching control and interpretation of data on the induced and natural processes. A brief review of the modern theoretical framework to provide software/hardware for automation of a hydrogeological monitoring system is given. The approaches to determining the spatial boundaries, basic schemes of digital hydrogeological monitoring system arrangement, quantitative characteristics of recording devices at the monitoring stations and their location based on the degree of permeation flow deformation, as well as values of hydraulic gradients are recommended. The design features of the monitoring stations with their vertical, inclined and horizontal location, and their equipment with vibrating wire and strain gauges are presented. Measuring and telecommunication systems and the preferred field of application of vibrating wire and strain gauges are characterized. The methods of interpretation of digital hydrogeological monitoring data are described, in particular, division of pore pressure into hydrostatic, sub-hydrostatic, supra-hydrostatic. The recommendations are given for determining the values of hydraulic gradients, specific flow rates by monitoring station, reference profile and adjacent sections. The technological process of forecasting mechanical suffosion on the basis of the conceptual hydrogeological model and granulometric characteristics of uncohesive soils, graphical analysis of calculated and destructive hydraulic gradients, visualization of relationships between the calculated and destructive hydraulic gradients as maps and 3D isosurfaces are given. The research data are illustrated by a case-study of implementation and 3D representation of the predictive model of mechanical suffosion development in the tailings dump wall during its reconstruction up to the design elevation.

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