PROCESS OF CONSTRUCTION OF CONTIGUITY OF TRANSFER TUNNEL OF BUILT LINE OF UNDERGROUND RAILWAY TO TRANSFER TUNNEL OF OPERATIONAL LINE

摘要

FIELD: underground railway. SUBSTANCE: process includes erection of contiguity structures in head section of transfer tunnel by construction of vertical sustaining wall in tunnel of operational line with dismantling of sections of its lining and resting of elements of lining of built line against sustaining wall as it is erected and nears tunnel of operational line and subsequent construction of the rest of contiguity section by completion of lining comprising both lines with dismantling of lining of tunnel of operational line in this section. Strip ferroconcrete support is erected prior to erection of lining comprising both lines over section of positioning of this lining inside tunnel of operational line on side opposite to contiguity of tunnel of built line butt-jointed to lining of tunnel of operational line for provision of its joint operation bordering on section of lining of tunnel of operational line. During erection of lining comprising both lines it is supported from side of operational line against strip ferroconcrete support. While dismantling lining of tunnel of operational line its section adjoining strip ferroconcrete support is preserved as section of lining comprising both lines. EFFECT: enhanced efficiency of construction process. 2 cl, 4 dwg