Abstract
The article presents special aspects of geodetic monitoring of deformations of buildings surrounding an underground construction. Special focus is on the question of establishment, design and control of geodetic control network. It is suggested that geodetic control network should be fixed with tape reflectors onto side surfaces of surrounding buildings, located out of zone of possible deformations. Optimal location of control stations should be chosen using analytic hierarchy process and with the account of maximum convenience of work performance. The article deals with the most preferable methods of geodetic observations to control vertical and horizontal deformations of context area buildings. Geodetic control of horizontal deformations should be done by the method of free stationing, whereas geodetic control of vertical deformations – by the method of geometric leveling using digital levels. Supplied theoretical developments are illustrated by the example of 2nd stage of the Mariinsky Opera and Ballet Theatre in St. Petersburg.
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