Additional water stop structure

Abstract

The utility model discloses an additional water stop structure which comprises a tunnel structural joint, concrete is poured on one side of the tunnel structural joint, the other side of the tunnel structural joint is not poured, part of the poured concrete is chiseled away to form a cavity, steel bars and a water stop are arranged in the cavity, the water stop is located in the center of the tunnel structural joint, and the cavity is filled with the poured concrete. And an FUKO pipe is arranged on the other side of the tunnel structural joint and close to the position of the tunnel structural joint, reinforcing steel bars and water stops are arranged on the side, then concrete is poured on the side, and after pouring is completed and strengthening is carried out, gaps existing in the tunnel structural joint are filled with FUKO pipe grouting. According to the situation that concrete is poured on one side of a tunnel structural joint and the other side of the tunnel structural joint is not poured yet, and the tunnel structural joint is not provided with a water stop, the poured concrete is chiseled away, a water stop installation space is reserved, then steel bars in the space are installed again, the water stop is fixed, and the concrete in the space is poured. And a grouting FUKO pipe is additionally arranged on the other side of the tunnel structural joint, and the purpose of further sealing is achieved after the concrete on the two sides of the tunnel structural joint is poured and grouted.

Description

Technical Field

[0001] The utility model relates to the field of water conservancy and hydropower engineering, in particular to an additional water-stopping structure, which is suitable for adding water-stopping at the position of a tunnel structure seam. Background Art

[0002] When pouring tunnel lining, waterstop structures are often installed at structural joints to prevent leakage. However, if waterstops are missing during construction or additional waterstops need to be installed between joints due to design adjustments, it is necessary to consider how to effectively install waterstops while minimizing structural changes. Utility Model Content

[0003] In order to solve the above problems, the utility model provides an additional water-stop structure. In view of the situation that concrete has been poured on one side of the tunnel structure joint and the other side has not yet been poured, and no water-stop is set in the tunnel structure joint, part of the poured concrete is chiseled out to leave space for the water-stop installation, and then the steel bars in the space are reinstalled and the water-stop is fixed, and the concrete in the space is poured, and an additional grouting FUKO pipe is provided on the other side of the tunnel structure joint. After the concrete on both sides of the tunnel structure joint is poured, the grouting is completed to achieve the purpose of further sealing.

[0004] The utility model is realized through the following technical solutions.

[0005] An additional water-stop structure comprises a tunnel structural joint, one side of the tunnel structural joint has been poured with concrete, and the other side has not yet been poured, a part of the poured concrete is chiseled out to form a cavity, steel bars and a water-stop are arranged in the cavity, the water-stop is located at the center of the tunnel structural joint, concrete is poured to fill the cavity, and a FUKO pipe is arranged on the other side of the tunnel structural joint and close to the tunnel structural joint, steel bars and a water-stop are arranged on this side, and then concrete is poured on this side, and after the pouring is completed and the concrete is strengthened, the FUKO pipe is used to grout to fill the gap in the tunnel structural joint.

[0006] Furthermore, the water stop adopts a plastic water stop.

[0007] Furthermore, the FUKO pipe is fixed to the other side of the tunnel structure joint by means of an iron sheet hoop, and the iron sheet hoop is fixed to the concrete on one side of the tunnel structure joint by means of cement nails.

[0008] The beneficial effects of the utility model are:

[0009] In the case where concrete has been poured on one side of the tunnel structural joint but not on the other side, and no waterstop is set in the tunnel structural joint, part of the poured concrete is chiseled off to leave space for the waterstop installation, and then the steel bars in the space are reinstalled and the waterstop is fixed, and the concrete in the space is poured. An additional grouting FUKO pipe is added on the other side of the tunnel structural joint. After the concrete on both sides of the tunnel structural joint is poured, the grouting is completed to achieve the purpose of further sealing.

[0010] The utility model is safe and reliable, the materials can be purchased conventionally, the construction is convenient, and the effect of adding water stopping during safe construction can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a cross-sectional view of the utility model water-stop structure after installation;

[0012] Figure 2 for Figure 1 Medium Figure 1 ;

[0013] Figure 3 for Figure 1 Cross-section view along the AA direction.

[0014] In the figure: 1-rebar, 2-waterstop, 3-steel lining, 4-steel lining water-blocking ring, 5-concrete, 6-uncast side reinforcement, 7-cement nails, 8-FUKO pipe, 9-iron hoop, 10-chisel away edge line, 11-FUKO pipe slurry inlet, 12-FUKO pipe slurry outlet. DETAILED DESCRIPTION

[0015] The following is a further description of the structures involved in the present invention or the technical terms used. These descriptions are merely examples of how the present invention is implemented and do not constitute any limitation to the present invention.

[0016] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left" and "right" indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present invention, unless otherwise clearly specified and limited, "connection", "fixation" and the like should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] like Figure 1-3As shown, an additional water-stop structure includes a tunnel structural joint, one side of the tunnel structural joint has been poured with concrete 5, and the other side has not yet been poured, part of the poured concrete 5 is chiseled out to form a cavity, steel bars 1 and water-stop 2 are arranged in the cavity, the water-stop 2 is located at the center of the tunnel structural joint, concrete is poured to fill the cavity, and a FUKO pipe 8 is arranged on the other side of the tunnel structural joint and close to the tunnel structural joint, steel bars 1 and water-stop 2 are arranged on this side, and then concrete is poured on this side, and after the pouring is completed and the strength is strengthened, the FUKO pipe 8 is used to grout to fill the possible gaps in the tunnel structural joint.

[0019] As an optional embodiment, a steel lining 3 is arranged at the bottom of the chiseled side, and a steel lining water blocking ring 4 is arranged above the steel lining 3. The steel lining water blocking ring 4 blocks the concrete that has not been chiseled away and the cavity.

[0020] As an optional embodiment, the water stop 2 is made of plastic water stop, such as PVC water stop.

[0021] As an optional embodiment, the FUKO pipe 8 is fixed to the other side of the tunnel structure joint by an iron sheet hoop 9, and the iron sheet hoop 9 is fixed to the concrete on one side of the tunnel structure joint 11 by cement nails 7.

[0022] The construction method of this additional water-stop structure is as follows:

[0023] a. According to the chiseling edge line 10, the part of the tunnel structure joint on one side has been chiseled out and the concrete 5 has been poured;

[0024] b. Erect steel bars 1 and install water stops 2;

[0025] c. Pour the concrete on the side that has been removed and install the FUKO pipe 8;

[0026] d. erect steel bars 6 and water stop 2 on the other side of the tunnel structure joint, i.e., the uncast side, and cast concrete on that side;

[0027] e. Pour the slurry into the FUKO tube 8 from the FUKO tube slurry inlet 11 for grouting. After the slurry flows out from the FUKO tube slurry outlet 12, block the outlet and continue grouting until the grouting is completed.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An additional water-stopping structure, comprising a tunnel structural joint, one side of which has been poured with concrete, and the other side of which has not yet been poured, characterized in that: Chisel out part of the poured concrete to form a cavity, set steel bars and waterstop in the cavity, the waterstop is located at the center of the tunnel structure joint, pour concrete to fill the cavity, and set a FUKO pipe on the other side of the tunnel structure joint and close to the tunnel structure joint, set steel bars and waterstop on this side, and then pour concrete on this side. After the pouring is completed and the concrete is strengthened, use the FUKO pipe to fill the gaps in the tunnel structure joint with grouting.

2. The additional water-stopping structure according to claim 1, characterized in that: All waterstops are made of plastic.

3. The additional water-stopping structure according to claim 1 is characterized in that: The FUKO pipe is fixed to the other side of the tunnel structure joint by an iron hoop, and the iron hoop is fixed to the concrete on one side of the tunnel structure joint by cement nails.

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