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Immersed tube tunnel dry dock bottom floating layer structure with ultra-filtration drainage grooves

A technology of immersed tube tunnel and floating layer, which is applied to underwater structures, infrastructure engineering, water conservancy projects, etc., and can solve problems such as easy damage of plywood and gravel layers, poor drainage effect of drainage channels, etc.

Pending Publication Date: 2016-11-02
CHINA RAILWAY LIUYUAN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Dry docking generally requires repeated undocking of floating pipe joints and docking of prefabricated pipe joints. The plywood and gravel layers are easily damaged when the process is repeatedly drained. poor drainage

Method used

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  • Immersed tube tunnel dry dock bottom floating layer structure with ultra-filtration drainage grooves
  • Immersed tube tunnel dry dock bottom floating layer structure with ultra-filtration drainage grooves

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Embodiment Construction

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

[0015] see as figure 1 —— figure 2 As shown, the present specific embodiment adopts the following technical scheme: it includes floating layer structure 1, floating layer 2, drainage tank 3, pebble layer 4, first concrete layer 5, formwork 6, Single-layer two-way steel mesh 7, second concrete layer 8, third concrete layer 9, gravel layer 10; the surface of the floating layer structure 1 at the bottom of the dry dock of the immersed tube tunnel is a floating layer 2, and the f...

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Abstract

The invention discloses an immersed tube tunnel dry dock bottom floating layer structure with ultra-filtration drainage grooves and relates to the technical field of municipal administration tunnels. The surface of an immersed tube tunnel dry dock bottom floating layer structure body is provided with a floating layer. The multiple drainage grooves which are formed in a cut-through manner in the transverse direction and the longitudinal direction are formed in the floating layer. A first concrete layer is arranged in each drainage groove. A pebble bed is paid on an upper end opening of each drainage groove. A single-layer double-direction reinforcing mesh is arranged on the periphery of each drainage groove, and a template is arranged on the periphery of each single-layer double-direction reinforcing mesh. A second concrete layer is arranged between each drainage groove and the corresponding single-layer double-direction reinforcing mesh. A third concrete layer is arranged between each single-layer double-direction reinforcing mesh and the corresponding template. A rubble layer is arranged below the floating layer. The immersed tube tunnel dry dock bottom floating layer structure with the ultra-filtration drainage grooves is good in drainage effect, and the immersed tube tunnel dry dock bottom floating layer is not likely to be damaged.

Description

technical field [0001] The invention relates to the technical field of municipal tunnels, in particular to a floating layer structure at the bottom of a dry dock of an immersed tube tunnel with an ultrafiltration drainage tank. Background technique [0002] Underwater tunnels have become an important node project in the planning network of transportation facilities. Nearly hundreds of underwater transportation tunnels have been built all over the world, and more than 100 tunnels are built using the immersed tube method. In the construction of immersed tube tunnel, its dry dock, pipe section, foundation trench, pipe section foundation, etc. are the main sub-projects of immersed tube tunnel. The dry dock is responsible for the prefabrication and floating tasks of the immersed tube section, and plays an important role in the immersed tube tunnel. As a prefabricated site for immersed tube joints, dry dock has a large construction scale, high investment, and has a great impact o...

Claims

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Application Information

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IPC IPC(8): E02D29/073
CPCE02D29/073
Inventor 宋芮瑾
Owner CHINA RAILWAY LIUYUAN GRP CO LTD
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