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  Interactive management of geotechnology parameters as a method of ensuring sa fety

  The construction of the metro in Moscow is being carried out in difficult geotechnical and urban planning conditions. On average, 1 running. km of the metro line under construction accounts for about 17 - 20 existing buildings and structures. During the construction of underground structures in open ditches, from 40 to 60% of the settlement of buildings located near the construction site and associated with the technology of work. During tunnelling, the technological component of the precipitation of buildings on the surface reaches 90% of the total measured value. Thus, the development of a methodology for interactive control of the parameters of underground construction technologies will reduce the technological component of the precipitation of buildings, ensure their structural reliability and reduce the spending of reinforcement The authors carried out a criterion ranking of modern technologies of underground construction, which should ensure the maximum possible mechanization and automation, the quality and safety of the construction of underground structures, the safety, and preservation operation of existing buildings, the minimum impact of construction on the stress-strain state (VAT) of the rock mass. There are provided the concept of "technological deformation" is given and the main factors determining the magnitude of these deformations are established. With regard to shield tunnelling, an algorithm has been developed for calculating the coefficient of technological search of soil, as the main parameter that determines the amount of surface precipitation. In conclusion, a scientific and methodological justification for the interactive management of geotechnology parameters was developed based on geotechnical monitoring data and innovative technical solutions for managing geotechnical risk in dense urban development.

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