UNDERGROUND STRUCTURE AND METHOD FOR ERECTING THE SAME Russian patent published in 1995 - IPC

FIELD: civil engineering. SUBSTANCE: underground structure includes at least one tunnel with lining having at least one aperture with a framework. The lining is made in the form of external and internal metallic extended shells with anchor- like fixtures on surfaces facing one another and a layer of hardening material between the shells, where anchor-like fixtures are placed in. The shells are apart form one another. Metallic diaphragms are located along aperture contour. The diaphragms overlap the layer of hardening material, are rigidly fastened to the shells, and form aperture framework along with lining sections adjoining aperture from any side. External and internal metallic extended shells with anchor-like fixtures are used in constructing underground structure. The one shells are installed inside others at a distance along structure length when erecting. Metallic diaphragms are placed in the space between the shells. EFFECT: building deep-seated structures. 2 cl, 2 dwg