METHOD FOR CONSTRUCTION OF TRANSPORT TUNNEL OF TRANSITION Russian patent published in 2016 - IPC E02D29/63 

FIELD: construction.

SUBSTANCE: invention relates to construction, namely to production of works in hydraulic engineering, and can be used in construction of underwater transport transitions on shallow water areas with weak bottom soils, for example, under strait and channels fairways. Construction method of transport tunnel junction includes manufacturing of prefabricated reinforced concrete sections in dry gateway dock, displacing them to place of mounting and series laying of assembled sections at water area bottom with subsequent connection sections to each other to form tunnel. At low depths and considerable thicker weak soils of water area bed in body of island (or artificial island) arranged on design tunnel route equipped with transfer chamber, acting as dry dock for simultaneous production of several assembled sections. Along profile of tunnel two guides parallel enclosing soil impermeable structures of wall in soil type are mounted. Inside barrier structures pit is made to accommodate assembled sections, base of pit is formed in form of pads from crushed stone. Displacement movement and installation by immersing to design position fabricated assembled sections of tunnel is performed from open and filled with water gate chamber by means of traction rope winches, installed and fixed on barrier structures.

EFFECT: technical result consists in improvement of manufacture ability and reliability of construction of underwater transport tunnel junction, reducing duration of construction, reduced labour intensity and material consumption for construction.

7 cl, 4 dwg