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Tunnel two-lining structure back grouting device, and grouting method thereof

A technology of back grouting and tunneling, which is applied in the direction of tunnel lining, tunnel, wellbore lining, etc. It can solve the problems of damaged waterproof layer, pipe blockage, waterproof layer damage, etc., and achieves the advantages of reasonable method application, convenient and rapid installation, and convenient use of devices Effect

Inactive Publication Date: 2011-11-23
BEIJING URBAN CONSTR YATAI GRP
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AI Technical Summary

Problems solved by technology

However, in the above two supplementary filling remedial methods, drilling often causes damage to the waterproof layer; at the same time, it also damages the steel bars in the structure, resulting in damage to the overall structural safety and performance; and the reserved conduit may damage the waterproof layer during construction. layer, and may accidentally block the conduit during pouring of concrete, resulting in an outcome that cannot be remedied by grouting afterwards

Method used

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  • Tunnel two-lining structure back grouting device, and grouting method thereof
  • Tunnel two-lining structure back grouting device, and grouting method thereof
  • Tunnel two-lining structure back grouting device, and grouting method thereof

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Embodiment Construction

[0033] The tunnel secondary lining structure back grouting device of the present invention consists of a tunnel secondary lining structure back grouting valve and a quick joint (see Figure 6 )composition. like figure 1 , figure 2 , image 3 , Figure 4 As shown, the grouting valve behind the second lining structure of the tunnel is composed of two parts: a disc body and a tubular body to form a complete body. The lower part of the center of the disc-shaped body is connected to the tubular body. The lumen of the tubular body communicates with the disc body. A plurality of supporting ribs 1 are provided on the bottom 3 of the disc-shaped body, and the supporting ribs 1 are bar-shaped bodies radially distributed along the center of the bottom 3 to the surroundings. Each support rib 1 consists of several segments. Several segments of supporting ribs 1 adjacent in the circumferential direction form a ring shape. A disc cover 2 is arranged on the support rib 1, and a stron...

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Abstract

The invention discloses a tunnel two-lining structure back grouting device and a grouting method thereof. The device consists of a tunnel two-lining structure back grouting valve and a quick joint. The upper surface of the tunnel two-lining structure back grouting valve is coated with a strong stamp gum. Through the strong stamp gum, the tunnel two-lining structure back grouting valve can be adhered to a waterproof layer and protects the waterproof layer from damage. The tunnel two-lining structure back grouting valve is connected with a grouting machine through the quick joint; and the grouting machine grouts the damage part of the gap between a one-lining structure and a two-lining structure of the tunnel through the tunnel two-lining structure back grouting valve. The grouting method for the tunnel two-lining structure back grouting device is reasonable in application, and the tunnel two-lining structure back grouting device is convenient to arrange. The tunnel two-lining structure back grouting device and the grouting method are a good method and a good device for grouting the gap between the one-lining structure and the two-lining structure of the tunnel.

Description

technical field [0001] The invention relates to a device for grouting by press-in method in construction engineering and a grouting method thereof, in particular to a grouting behind the structure of the second lining of the tunnel for grouting between the structure of the first lining and the second lining of the tunnel Device and grouting method thereof. Background technique [0002] The concrete pouring construction of the second lining of the tunnel generally adopts the pumping pressure injection method to directly pour the concrete. Theoretically, there will be no gap between the second lining structure and the first lining structure when pouring the second lining structure, but due to the difficulty of tamping the concrete poured in the second lining structure and the influence of gravity on the top of the structural concrete, it will cause the second lining The density of concrete pouring in the structure or the filling thickness of the space in the formwork often fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10
Inventor 康建新王玉成董佳节费恺周世勋曾庆娟曹国章李金海潘寿林仁发群
Owner BEIJING URBAN CONSTR YATAI GRP
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