CONSTRUCTION METHOD OF DEEP-LAID DOUBLE-ARCHED UNDERGROUND STATION Russian patent published in 2014 - IPC E02D29/55 

FIELD: construction.

SUBSTANCE: invention relates to construction industry and can be used at construction of undergrounds immediately at construction of a deep-laid double-arched underground station. An installation method of a deep-laid double-arched underground station, which involves driving of side supporting tunnels, construction of side supports in them, development of calotte slots, installation of upper arches with partial removal of liner of the side supporting tunnels, development of a station core, underpinning of inverted arches and installation of internal structures with an island platform, differs by the fact that the deep-laid double-arched underground station is constructed in the scope of a single-arched underground station; side supporting tunnels and a middle supporting tunnel is constructed, liner is mounted in it and an upper supporting member is installed into it, which is common for upper arches of the station, and a pre-fabricated reinforced-concrete strip foundation made in the form of a flat tray having planes of interface to the inverted arches of the station, then, in the side supporting tunnels there constructed are side supports with anchor support, which have a possibility of avoiding rotation of side supports during installation of upper arches; the middle part of the common load-carrying support is mounted with its further concreting throughout the station length, at the same time, in the upper part of the side supporting tunnels and the middle supporting tunnel the liner is removed, calotte slots of station tunnels are driven with installation of upper arches and partial removal of the liner of side supporting tunnels and the liner of the middle supporting tunnel; the core is developed in each station tunnel; liners of side supporting tunnels and the liner of the middle supporting tunnel is removed; soil is excavated for installation of inverted arches; inverted arches are built in both station tunnels and internal structures with an island platform are constructed.

EFFECT: improvement of use coefficient of underground working, reduction of labour costs and material consumption, as well as construction due date.

7 dwg