METHOD FOR CONSTRUCTION OF TUNNEL Russian patent published in 1996 - IPC

FIELD: construction, particular, methods for construction of tunnel from separate members of support by pushing through. SUBSTANCE: method for construction of tunnel includes excavation of ground in face, alternate installation of support members 14 in mounting room 1, arrangement of unit 10 of powered set inside support member 14; fastening to it of supporting device 11 behind the end of support member 14; installation of safety member on the supporting device 11 and moving of support member 14 together with unit 10 of powered set with the help of pressing cross-piece 5 and power plant 3. Each next support member 14 is moved and installed immediately adjacent to safety locked member and in a spaced relation to supporting device 11 of the foregoing unit 10 of powered set. When all support members are moved, alternate and successive withdrawal of supporting devices 11 and unit 10 of powered set through mounting room 21 is undertaken beginning from dismantling of supporting device 11 secured to main unit 10 of powered set. After dismantling each unit 10 of powered set, installed in gap C formed between end faces of adjacent support member 14 after dismantling of supporting device 11, is sealing closed member 22 and support members 14 are additionally moved to be engageable with installed sealing closed member 22. EFFECT: provision of qualitative joint sealing and removal from support member of load of the total force of support members in the process of their pushing through. 2 cl, 7 dwg