FIELD: construction.
SUBSTANCE: invention relates to construction, namely, to erection of tunnels in an embankment mass under the existing transport traffic artery. The method of tunnel erection, preferably in the embankment mass under the existing traffic artery includes formation of a protective screen in the embankment mass by means of alternate punching of lengthy elements with a hydraulic pressing plant, and elements are connected to each other by lock joints, additional strengthening of the structure, excavation in the erected tunnel volume, concreting and finishing. First they install an auxiliary support frame on the site, on it, using lengthy elements, connecting them by lock joints, they assemble outside the embankment mass the structure of the protective screen, which follows the contour of the erected tunnel. Then lengthy elements are punched in a shuttle manner, starting from the lower one, serially punching each of them into the embankment mass first at the first set depth, for instance, for travel of the piston of the hydraulic pressing plant, at the same time they move the working element of the hydraulic pressing plant to each subsequent adjacent lengthy element first in one direction along the protective screen structure, and then in reverse direction, punching each lengthy element for another piston travel, and shuttle movement of the specified working element to complete punching of all lengthy elements of the protective screen structure to the standard place in the embankment mass.
EFFECT: increased tunnel strength, as well as reliability and tightness of lock joints, reduced deformation of lengthy elements of the protective screen of the tunnel during their punching.
9 cl, 5 dwg
