A traffic relief structure for the entrance and exit of an underground or underwater tunnel

Abstract

The invention relates to the technical filed of road traffic design, and provides a traffic reconciliation structure of underground or underwater tunnel inlet and outlet. The traffic reconciliation structure comprises a ground intersection structure and an underground intersection structure; the underground intersection structure comprises a main road and a ramp positioned at lower part of a road at ground intersection; a left track and a right track of the main road are respectively to a ramp grounding inlet at left side and a ramp grounding outlet at right side and are communicated through a ramp connection segment of a first curvilinear figure and a second curvilinear figure, the inlet is arranged at intermediate part of the ramp connection segment of the first curvilinear figure at left side, the inlet is communicated to the ramp grounding inlet at right side through the ramp connection segment of the third curvilinear figure, the outlet is arranged at intermediate part of the ramp connection segment of the second curvilinear figure at right side, the outlet is communicated to the ramp grounding outlet at left side through the ramp connection segment of the fourth curvilinear figure, conflict of traffic at ground intersection can be avoided, and the structure is especially suitable for traffic reconciliation to underground tunnel in advance at underground tunnel inlet and outlet.

Description

technical field [0001] The invention belongs to the technical field of road traffic design, in particular to a traffic relief structure for an entrance and exit of an underground or underwater tunnel. Background technique [0002] In recent years, with the continuous expansion of cities and the rapid development of urban traffic, it has become increasingly difficult for the ground road network to meet the growing and explosively unbalanced traffic demand. In many cities that cross rivers, seas, or mountains, in order to further improve the road network conditions, meet the growing traffic demand, and improve urban traffic capacity, they are often willing to build underground tunnels, and some cities have seen multiple underground tunnels . [0003] Urban underground or underwater tunnels have many obvious advantages: such as saving land, less demolition of buildings, less impact from off-road, and less impact from climate change. However, with the rapid construction of urb...

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Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a traffic relief structure for the entrance and exit of underground or underwater tunnels, so as to solve the problem of insufficient connection reliability or unimpeded reliability in the traffic relief structure for entrance and exit of underground or underwater tunnels in the prior art

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