Interactive control of process variables in double-track tunnel driving between subway stations

Preservation of the surface urban development during subway construction is a critical task requiring elaboration of a sound action plan. A special attention should be paid to intersections under critical, highly technical and unique buildings and structures on ground surface, monuments of history, culture and architecture, as well as under areas under special protection. The article reviews an action plan on scientific and technical supervision and interactive control over the process variables in double-track tunnel driving between two stations in terms of the Pechatniki Station of Moscow Metro’s Big Circle Line. The interactive control assumes: verification of the numerical modeling results, recording of the process variables during tunnel driving (set-on weight pressure, excavated rock mass volume, grouting volume and injection pressure), automated monitoring, geodetic surveying of ground surface deformation, GPR survey of soil in order to reveal leaks, radio wave geointroscopy (RWGI) of interwell space in the zone of intersection between the operating and abuilding tunnels, analysis of monitoring data and interactive control over tunnel driving parameters. The analysis of the research findings shows that geoengineering design quality improvement requires implementing the full-scale research into the dependence of the excess excavation ratio on the design features of a tunnel boring machine and on the geotechnical conditions of tunneling.

Konyukhov D. S. Interactive control of process variables in double-track tunnel driving between subway stations. MIAB. Mining Inf. Anal. Bull. 2022;(5):84-94. [In Russ]. DOI: 10.25018/0236_1493_2022_5_0_84.

D.S. Konyukhov, Cand. Sci. (Eng.), Assistant Professor, National University of Science and Technology «MISiS», 119049, Moscow, Russia, e-mail: gidrotehnik@inbox.ru.

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