| 摘要 |
highway engineering, applicable in construction and reconstruction of road junctions at different grades of trunk highways in the conditions of narrow urban building. SUBSTANCE: the grade-crossing elimination structure has a junction at four grades of ring highway and radial highway comprising overpasses, viaduct, exits and entries. The novelty is in the fact that the viaducts are located on the ring highway route, pass under the radial highway and are made in the form of tunnels, at least part of which makes up a single multispan multigrade framework, having a solid covering, for multilane traffic of transport in opposite directions, with ramp sections at the entry and exit, and side-ways of different directions, at least part of which is located on overpasses and/or in tunnels. EFFECT: reduced labour and material costs and scope of excavation in the conditions of narrow urban building, presence of numerous adjacent underground service lines, metro tunnels inclusive, and sufficiently nearly located railways, at simultaneous provision of redistribution of traffic flows, prevented jammings on motor roads, enhanced traffic capacity and road safety. 13 cl, 5 dwg
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