Parameter determination of observation station versus mining and geological conditions of subsoil use

In view of the commencement of new requirements on mining operational planning, the regulations have been set for the arrangement of observation stations for mining-induced ground surface deformation for all types of minerals. In this regard, parameter determination for survey stations at such objects of the physicochemical geotechnology as underground hydrocarbon storages is of the current concern. The regulatory and legal framework and the mining-and-geological conditions of subsoil use objects are reviewed with a special emphasis placed on the chief factors which have influence on arrangement of a deformation observation station. The observation station parameters are calculated with regard to mining-and geological conditions. As a result of the implemented research, the analytical expressions are for the first time ever obtained for determining the number of the control points of GNSS network and observation leveling network. It is found that in flat-lying beds, given no faulting, an observation station boundary can be defined by the averaged limit dip angle of the beds and by the depth of mining operations. The observation station boundaries can be delineated analytically, with regard to mining and geological conditions of a subsoil use object: area sizes of underground excavations, mining depth, averaged limit dip angle, thickness of enclosing and overlying rock masses. © 2021 Publishing house Mining book. All rights reserved.