Water-permeable structure tunnel structure

Abstract

The invention provides a water-permeable structure tunnel structure. The water-permeable structure tunnel structure comprises a sea middle section tunnel main body structure and protective caisson water stopping structures connected to the two sides of the sea middle section tunnel main body structure; the sea middle section tunnel main body structure comprises traffic lane box holes, ballast bin box holes and pipeline bin box holes; a foundation of the sea middle section tunnel main body structure adopts cast-in-situ bored piles; each protective caisson water stopping structure is composed of a temporary protective caisson and a permanent protective caisson; and after the construction period is finished and the temporary protective caissons are dismantled, a blocking box body structure is arranged between each permanent protective caisson and the sea middle section tunnel main body structure. According to the water-permeable structure tunnel structure, by arranging the water-permeable structure and conducting regular dredging, the stability of the ecological environment of a tunnel site area can be reliably ensured, harmonious win-win of environmental protection and municipal infrastructure construction is achieved, the design scheme of the novel water-permeable structure is created, technical innovation with wide prospects is completed, and damage of an existing open cut backfilling construction method to the ocean and land environment is reduced.

Description

technical field [0001] The invention relates to the technical field of subsea tunnel construction engineering, in particular to a permeable structure tunnel structure. Background technique [0002] There are more and more large-scale cross-sea tunnel projects in engineering construction. Cut-and-cover tunnel is one of the construction methods of tunnel construction, because the construction method first excavates the tunnel on the ground, and then backfills the road surface, so it gets its name. This method is applicable to the construction of underground tunnels, and can be used to construct subsea tunnels in conjunction with temporary land reclamation. [0003] At present, most offshore tunnel structures in my country are covered and backfilled. Coastal wetlands (including coastal beaches, estuaries, shallow seas, mangroves, coral reefs, etc.) are important habitats and breeding grounds for offshore organisms and transfer stations for bird migration. They are precious wetl...

AI Technical Summary

Problems solved by technology

In recent years, my country's coastal wetland protection has achieved certain results, but due to long-term large-scale sea-use engineering construction, open excavation and backfilling, a large area of ​​coastal wetlands has been reduced, and the natural coastline has been sharply reduced, causing damage to marine and terrestrial ecosystems

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