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Steel plate-concrete composite lining

A concrete and steel plate technology, applied in wellbore lining, tunnel lining, earthwork drilling, etc., can solve problems such as affecting the normal use of tunnels, corrosion of structural steel bars, poor impermeability and waterproof performance, etc., achieving significant comprehensive benefits, bearing capacity and The effect of high structural rigidity and good compressive performance of concrete

Inactive Publication Date: 2009-02-04
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Reinforced concrete lining has the advantages of low cost, good integrity, and can be cast on site or prefabricated, but there are problems such as low early strength, poor impermeability and waterproof performance
Water seepage and water leakage lead to corrosion of steel bars in the structural layer, making the actual stiffness of the lining less than the calculated stiffness, which affects the normal use of the tunnel and is difficult to repair

Method used

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  • Steel plate-concrete composite lining
  • Steel plate-concrete composite lining
  • Steel plate-concrete composite lining

Examples

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Embodiment Construction

[0009] The invention provides a steel plate-concrete composite lining that can be applied to the construction of new tunnels with high requirements on stress and waterproof and the reinforcement of existing structures. It is a steel plate-concrete composite lining that combines support and waterproofing. The partial section is as follows: figure 1 shown. On one side of the steel plate 2 pouring concrete, the shear connector stud 4 is fused and welded, and the steel mesh 5 formed by the double-hook ties 3 is bound on the side of the steel plate 2 by the fusion-welded shear connector stud 4 , through the shear connector The studs 4 combine the shotcrete 1 with the parts to form an integral lining.

[0010] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0011] The basic components of steel plate-concrete composite lining are steel plate 2, shear connector stud 4, steel mesh 5 and shotcrete 1. T...

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Abstract

The present invention disclose a steel plate-concrete composite lining which combines support and water proof and belongs to tunnel safe support device range. It can be applied for construction of new tunnel with high force bearing and water proof requirement and the reinforcement of existing structures, and includes a circular cross section tunnel, an arched section tunnel or various section shape tunnels or saps. The lining is generally formed in a way of first forming a lining frame by two anti-cut connection elements melted with studs, a reinforcing steel net banded by reinforcing steels and a steel plate and then spraying concrete into the frame. The invention combines the steel plate, the sprayed concrete to a whole structure to bear force, has improved bearing ability and stability than single reinforcing steel concrete lining, can be as support for new tunnel and as the reinforcement device for similar structure. The invention has the advantages of easy in quality guaranty, simple and quick in construction and high in synthetic effect.

Description

technical field [0001] The invention belongs to the scope of a tunnel safety support device, in particular to a steel plate-concrete composite lining that can be applied to the construction of new tunnels with good force bearing and waterproof performance and the reinforcement of existing structures. Background technique [0002] Linings are usually subject to large surrounding rock pressure and groundwater pressure, so they should have sufficient strength, durability and impermeability. At present, the commonly used lining in tunnel engineering is reinforced concrete structure. Reinforced concrete lining has the advantages of low cost, good integrity, and can be cast on site or prefabricated, but there are problems such as low early strength, poor impermeability and waterproof performance. Water seepage and water leakage lead to corrosion of steel bars in the structural layer, making the actual stiffness of the lining less than the calculated stiffness, which affects the n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10
Inventor 聂建国樊健生
Owner TSINGHUA UNIV
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