ARRANGEMENT FOR SUPPORTING THE WALLS OF UNDERGROUND WORKING IN TECTONICALLY STRAINED SOIL BODY

摘要

The invention relates to the construction of underground structures in a tectonically dense massif. The purpose of the invention is to simplify the technology of fastening and reduce labor costs. The method includes disclosure of production, drilling of wells 3, installation of steel rods 1 therein, previously in the initial part of the production side covered with a layer of anti-adhesive material 2, injection at one time in solution 3 of the wells 4 and fixing the protruding ends of the rods 1 with the support device 6 ensuring of a given backlash between the supporting surface and the fixture and the wall of the excavation 8. In the device for fastening the walls of the underground excavation, the initial part of the rod 1 at the length L St is covered with an antiadhesive material 2, and between the supporting hydrochloric produce tiles and wall 8 located a hollow box. 2 sec. and 1 z. p. f-ly, 5 ill.