Steel plate-concrete composite lining

A concrete and shotcrete technology, applied in wellbore lining, tunnel lining, earth-moving drilling, etc., can solve the problems of affecting the normal use of the tunnel, poor impermeability and waterproof performance, corrosion of steel reinforcement in the structural layer, etc., achieving significant comprehensive benefits and concrete resistance. The effect of good compressive performance, bearing capacity and structural rigidity

Inactive Publication Date: 2005-03-16
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
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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 where concrete is poured, the shear connector pegs 4 should be welded. On this side of the steel plate 2, the steel mesh 5 connected and formed by double-hook tension bars 3 should be bound, and the sprayed concrete should be sprayed through the shear connector pegs 4. 1 Combined with each part 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 shotcr...

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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 tunnel safety supporting devices, in particular to a steel plate-concrete composite lining which 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 th...

Claims

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Application Information

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