STRUCTURES OF PRECAST REINFORCED CONCRETE LININGS OF DISTILLING TUNNELS CONSTRUCTED BY THE SHIELD METHOD OF THE HERRENKNECHT COMPANY

ABSTRACT This article discusses the updating of the work of a tunnel boring complex with a soil load "Herrenknecht" S-1128 during the excavation of distillation tunnels in difficult mining and geological conditions in the field of underground construction of the second stage of the Yunusabad line of the Tashkent metro. The article presents methods for creating technological schemes for carrying out subway tunnels, which make it possible to study the complex management of the processes of constructing the lining of a reinforced concrete ring with an internal diameter of 5,100 m for the construction of tunnels using TBMs in the difficult urban conditions of the city of Tashkent. The parameters of the last built ring and the area for entering the gap, a graphical representation of the selected next ring, information about the eccentricity of the last built ring and the pre-calculated eccentricity of the selected next ring are described. In addition, an indication of the current advance values and pre-calculated advance values taking into account the selected next ring is provided. An analysis technique is considered using the Tunis software - the module “Calculation of the ring installation sequence”.