TUNNEL WITH AIR TEMPERATURE IN ITS INNER PART NEGATIVE IN WINTER PERIOD Russian patent published in 2019 - IPC E02D29/05 

FIELD: construction.

SUBSTANCE: invention relates to construction of underground transport facilities operated in different seasons of the year. Tunnel with negative air temperature in its internal part in winter contains along its length two transition sections, preferably open from above, and located between them, preferably having overlapping, central section, lining of which is made of reinforced concrete having no expansion joints, and comprises a tray plate, walls and, preferably, a slab, which are made with filled sealing compound, preferably at low relative to average ambient temperature, organized cracks located throughout the crosswise concrete, reinforced as per calculation section in places of targeted design weakening of concrete reinforced by design section. Heat-insulating and thermoregulating coating is arranged along entire cross-section of transition and central sections located preferably directly on water-out layer throughout its length. Water-removing layer has communication with drainage pipelines.

EFFECT: technical result consists in improvement of durability and safe operation of tunnel.

4 cl, 10 dwg