A Cable-Stayed Anchor Type Suspension Tunnel Structure with Relay Extension of Artificial Island

A technology for suspended tunnels and artificial islands, applied in the field of underwater suspended tunnels, can solve problems such as difficulty in predicting comfort and safety risks, displacement or shaking of the tunnel, and difficulty in construction, and achieve convenient limit devices, methods, and structures. Simple and save construction period

CN111424716BActive Publication Date: 2021-05-25CCCC THIRD HARBOR ENG +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-05-25

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Abstract

The invention discloses a cable-stayed anchorage type suspension tunnel structure with artificial island relay extension, comprising a pair of shore structures, a water suspension tunnel, several relay artificial islands and a cable anchorage system. A pair of docking bank structures are respectively connected between two ends of the floating tunnel in the water and a pair of slope tunnels in the land area. The underwater floating tunnel is formed by connecting multiple sections of pipe joints; the relay artificial islands are arranged at intervals along the axial direction of the underwater floating tunnel, so that the entire underwater floating tunnel is divided into several spanning floating tunnels. The stay cable anchorage system includes several pairs of stay cable anchorage artificial islands and multiple groups of stay cables. The cable anchorage artificial islands are all set at the mid-span positions on both sides of each span of the floating tunnel; A group of island wall cable pipes and cable protection sleeves, a group of cable steering piers, cable ramps and cable anchorage piers are arranged on the islands; the floating tunnel structure of the present invention greatly increases the length of the floating tunnel in the water. improve.
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Description

technical field

[0001] The invention relates to an underwater floating tunnel, in particular to a cable-stayed anchorage type floating tunnel structure with relay extension of an artificial island. Background technique

[0002] The submerged floating tunnel, the English name is "Submerged Floating Tunnel", referred to as "SFT". In Italy, it is also called "Archimedes bridge", or "PDA" bridge for short. Generally, it consists of a tubular body floating at a certain depth in the water (the space of the tubular body is large enough to meet the requirements of road and railway traffic), a support system (anchor cables anchored on the seabed foundation, piers or floating boxes on the water) and It is composed of structures on both sides of the river. It is a new type of structure that means of transportation across the two banks separated by deep water. It is suitable for all means of transportation that need to pass through the water. It can pass trains, cars, small motor vehi...

Examples

Embodiment Construction

[0083] The present invention will be further described below in conjunction with accompanying drawing.

[0084] see Figure 1 to Figure 20 , the cable-stayed anchorage suspension tunnel structure of the artificial island relay extension of the present invention includes a tunnel body, a shore structure, several relay artificial islands 7 and a cable anchorage system, and also includes a buoyancy-to-weight ratio adjustment system and an anti-collision warning system , escape system and tunnel ancillary facilities. The shore structure includes a push-side shore structure 2 and a receiving-side shore structure that are arranged on the push-side coast and the receiving-side coast one by one; the tunnel body includes a floating tunnel 1 in water, a land slope tunnel 6 on the push-side and a receiving Side land slope tunnel; the water-facing end of the pushing-side land slope tunnel 6 and the water-facing end of the receiving-side land slope tunnel are in one-to-one correspondence ...