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SAFETY OF BUILDING SYSTEMS. ECOLOGICAL PROBLEMS OF CONSTRUCTION PROJECTS. GEOECOLOGY

GEOMECHANICAL MONITORING OF UNDERGROUND CONSTRUCTION PROJECTS

Vestnik MGSU 11/2012
  • Potapov Aleksandr Dmitrievich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Chair, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Manko Artur Vladimirovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 227 - 235

The authors argue that optimization of monitoring systems is a complicated task, as multiple
factors need to be taken account of at one and the same time. The authors consider a monitoring
system as a system of "supervision" that incorporates a set of tools, as well as registration,
archiving, classification, and analysis of inspection results, inclusive of their comparison with the
projected data, development and implementation of engineering solutions.
The basic goal of any geomechanical monitoring project consists in development of a methodology
of rational arrangement of items of monitoring equipment that employ GIS technologies. The
objective of this research is to apply advanced numerical methods in combination with geographic
information systems with a view to the optimization of a system of monitoring applicable to subterranean
structures. Should the proven methodological and scientific validity of the research findings
be in place, long-term geomechanical projections of the structural behaviour will be feasible. The
proposed methodology may be introduced as a standard method of structural behaviour monitoring
in the course of construction and operation of structures for engineering solutions to be made in the
real-time mode. The principal goal of a monitoring system is the identification of the rock nature,
processes initiated in the medium, their development pattern, and the identification of technical and
economic factors of impact onto the engineering solutions to be made at each stage of engineering
surveys, design, construction and operation of major subterranean structures.
The analysis of calculations made for various loading scenarios have proven that any further
research should take account of a lateral load that is equal to doubled vertical loads.
The research was performed at a subterranean structure composed of two parallel chamber pits.
The analysis of GIS modeling methods has proven that development of GIS projects requires
the employment of statistical methods of the multidimensional analysis. Employment of multidimensional
analysis methods makes it possible to examine the geological features that demonstrate a
high degree of complexity. Terrain modeling requires the employment of models of formal characterization
and differentiation. Identification of positions of geological strata and tectonic dislocations
may be reduced to interpolation and extrapolation.
The model of a subterranean structure is implemented in the GIS and databases, and it incorporates
the data banks entitled "Rock", "Massif", "Structure and Massif", as well as the data banks.
that contain surveying, geological and supplementary information. The GIS also comprises a topographic
site plan, a geologic description of a massif (stratifi cation, lamination, as well as a complete
assessment of each major massif crack).
The subterranean structure of a radioactive waste storage site was the subject of a 3D numerical
experiment. Its results were entered into the GIS project database. Positions and lengths
of extensometers were optimized on the basis of the simulation performed in furtherance of the
methodology developed by the authors. Positions of extensometers were registered in the GIS as
reference points.

DOI: 10.22227/1997-0935.2012.11.227 - 235

References
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