METHOD FOR ERECTING DEEP SUBWAY STATION Russian patent published in 1996 - IPC

FIELD: subway building, erection of deep subway station. SUBSTANCE: method includes pretunneling and making supports for vault of lateral and middle tunnels, installation of support members, installation of lining on vault of lateral and middle tunnels, resting lower butts of the lining on support members followed by digging soil to the level of support foot and erection of tray part of the station. Support members in the form of metal straight plates are installed on edge supports of lateral tunnels. All other intermediate supports are provided with support members in the form of metal plates of broken outline with middle horizontal section and adjoining inclined peripheral sections. Then middle tunnel is driven and its lining is installed in the direction from supports to apex of arch with resting lower butts of the vault on periphery inclined sections of support plates of the middle section facing each other. Then lateral tunnels are driven and their lining is erected in the direction from supports to apex of arch with resting lower butts of their vaults respectively on straight plates of edge supports of lateral tunnels and peripheral inclined sections of support plates of the middle tunnel facing support of lateral tunnels. EFFECT: high speed of tunneling. 4 dwg