CN204475267U - Tubulose hydraulic structure shrinkage joint anti-leakage structure - Google Patents

Abstract

The utility model relates to an anti-leakage structure for expansion joints of tubular hydraulic structures, which belongs to the technical field of building construction. The tubular hydraulic structure is formed by connecting multiple sections of pipelines, and expansion joints are reserved between two adjacent sections of pipelines, and the expansion joints are filled with fillers along the radial direction of the pipelines; the fillers include cushions located on the outer layer and a sealant layer located on the inner side; the expansion joint is located on the inner wall of the pipeline, and a waterstop is applied; the parts of the waterstop on both sides of the expansion joint are respectively provided with a bead, and the bead is fixed to the pipeline by an anchor bolt connect. The anti-seepage structure of the expansion joint of the tubular hydraulic structure not only has a simple structure but also has high reliability.

Description

Anti-leakage structure of expansion joints of tubular hydraulic structures

technical field

The utility model relates to an anti-leakage structure for expansion joints of tubular hydraulic structures, which belongs to the technical field of building construction.

Background technique

In the prior art, most of the expansion joints of hydraulic structures such as concrete pipes, culverts, and inverted siphons are embedded with waterproof materials such as rubber waterstops or mastic to cope with deformation caused by settlement and temperature. However, with the passage of time, the waterproof material in the expansion joint (that is, rubber waterstop or mastic, etc.) will gradually lose its elasticity, oxidize and crack, or crack due to excessive deformation, which will lead to the above-mentioned hydraulic structures. Leakage of the expansion joints of the building will not only easily cause blackening and mildew on both sides of the joints of the building, which will affect the appearance and function of use, but also the freeze-thaw cycle in cold areas will seriously affect the safety and durability of the building.

Contents of the invention

The purpose of the utility model is: to overcome the defects of the above-mentioned prior art, and propose a kind of anti-leakage structure of the expansion joint of the tubular hydraulic structure with simple structure and high reliability.

In order to solve the above technical problems, the technical solution proposed by the present invention is: an anti-leakage structure for the expansion joints of tubular hydraulic structures, the tubular hydraulic structures are connected by multi-section pipes, and the expansion joints are located adjacent Between the pipes, the expansion joints are filled with fillers; the fillers include a sealant layer on the inner layer and a cushion layer on the outer layer to prevent leakage of the sealant layer; the expansion joints are located on the inner wall of the pipeline A waterstop is applied; the parts of the waterstop located on both sides of the expansion joint are respectively provided with a bead, and the bead is fixedly connected to the pipeline through an anchor bolt.

When the utility model is in use, firstly, a cushion layer with a certain thickness is reserved on the outside of the expansion joint as a backing material, and a sealant layer is poured inside to form the first anti-seepage body of the expansion joint, which can effectively prevent the expansion joint from leaking ; The position where the expansion joint is located on the inner wall of the pipeline is covered with a waterstop. In this way, the waterstop is pasted on the inner wall of the pipeline at the expansion joint to form a second anti-seepage body, which can further avoid leakage of the expansion joint.

In the utility model, the cushion layer can be selected from a tar plastic cement layer or other existing material layers for preventing leakage of the sealant layer. The sealant layer is preferably a two-component polysulfide sealant layer, the waterstop is preferably a rubber waterstop; the bead is preferably a metal bead, especially a stainless steel bead.

Preferably, the ratio of the thickness of the cushion layer to the thickness of the sealant layer is 1:2 to 1:1.

Preferably, the anchor bolt is inserted and fixed in the pipeline wall after passing through the bead and the waterstop.

The two-component polysulfide sealing paste layer described in the utility model is an existing material, which has the characteristics of low modulus, high elasticity, good freeze-thaw performance, and good bonding performance with concrete, and has good bonding after water ingress Strength, so it is especially suitable for long-term flooded buildings. In the utility model, the expansion joint is located at the position of the inner wall of the pipeline, and a water stop is pasted. Compared with the rubber water stop or mastic embedded in the expansion joint in the prior art, the good performance of the rubber water stop can be fully utilized. The characteristics of elasticity, abrasion resistance, aging resistance and tear resistance, as well as strong adaptability to deformation can effectively avoid the leakage of expansion joints.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a schematic structural view of an embodiment of the utility model.

Fig. 2 is a bottom view of Fig. 1 .

Detailed ways

Example

As shown in Figure 1 and Figure 2, the anti-seepage structure of the expansion joints of the tubular hydraulic structure in this embodiment, wherein the tubular hydraulic structure is formed by connecting multiple sections of pipelines (not shown in the figure), and two adjacent sections Expansion joints are reserved between the pipes, such as the expansion joints between the first pipe 1 and the second pipe 2 in Figure 1, the expansion joints are filled with fillers along the radial direction of the pipes; Layer 3-1 and sealant layer 3-2; the expansion joint is located on the inner wall of the pipe, and the waterstop 3-3 is attached; the parts of the waterstop 3-3 located on both sides of the expansion joint are respectively provided with layering strips 3-5 , the bead 3-5 is fixedly connected to the pipeline through the anchor bolt 3-4.

In this embodiment, the cushion layer 3-1 is a tar plastic cement layer, and of course, any material layer that can prevent the sealant layer from leaking can also be selected.

In this embodiment, the sealant layer 3-2 is a two-component polysulfide sealant layer, and the waterstop 3-3 is a rubber waterstop. The two-component polysulfide sealant layer 3-2 is an existing material, which has the characteristics of low modulus, high elasticity, good freeze-thaw performance, good bonding performance with concrete, etc., and has good bonding strength after entering water, so Especially suitable for long-term flooded buildings. Of course, the sealant layer 3-2 can also use other sealant materials.

In this way, a cushion layer 3-1 of a certain thickness is reserved on the outside of the expansion joint as a backing material, and a two-component polysulfide sealant layer 3-2 is poured on the inside to form the first anti-seepage body of the expansion joint, which can effectively prevent Expansion joint leakage. The rubber waterstop 3-3 is attached to the inner wall of the pipe at the expansion joint to form the second anti-seepage body, which can make full use of the good elasticity, wear resistance, aging resistance and tear resistance of the rubber waterstop 3-3 And the characteristics of strong adaptability to deformation can further avoid the leakage of expansion joints.

As shown in Figures 1 and 2, in order to firmly fix the rubber waterstop 3-3 on the inner wall of the adjacent pipeline, when the metal bead 3-5 is fixedly connected to the pipeline through the anchor bolt 3-4, the anchor bolt 3-3 4. After passing through the bead 3-5 and the rubber waterstop 3-3, insert it into the pipe wall. The bead 3-5 is preferably a metal bead, especially a stainless steel bead.

The anti-leakage structure of expansion joints in this embodiment can also be used for repairing leakage of expansion joints of existing tubular hydraulic structures (i.e., anti-leakage renovation). During construction, the aging filler inside the expansion joints should be removed first, and left on the outside. A certain thickness of filler is used as the backing material; secondly, remove oil, attachments, dust and other sundries on the surface to be adhered, and then pour two-component polysulfide sealant to form the first anti-seepage body of the expansion joint, and finally apply rubber Waterstop, and the rubber waterstop is fixed by anchor bolts and external pressure stainless steel plates to form a second anti-seepage body. Therefore, this embodiment also has obvious engineering practical significance.

The utility model is not limited to the specific technical solutions described in the above embodiments, except for the above embodiments, the utility model can also have other implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the utility model.

Claims (6)

1. a tubulose hydraulic structure shrinkage joint anti-leakage structure, described tubulose hydraulic structure is formed by connecting by more piece pipeline, and described shrinkage joint, between adjacent channel, is filled with filler in described shrinkage joint; It is characterized in that: described filler comprises the sealant layer that is positioned at internal layer and is positioned at skin and for preventing the bed course of sealant layer seepage; The position that described shrinkage joint is positioned at inner-walls of duct has sticked waterstop; The part that described waterstop is positioned at both sides, shrinkage joint is respectively equipped with press strip, and described press strip is fixedly connected with pipeline by crab-bolt.

2. tubulose hydraulic structure shrinkage joint according to claim 1 anti-leakage structure, is characterized in that: the thickness of described bed course and the thickness ratio of sealant layer are 1:2 to 1:1.

3. tubulose hydraulic structure shrinkage joint according to claim 1 anti-leakage structure, is characterized in that: described crab-bolt is inserted and secured in duct wall through after press strip and waterstop.

4. according to the tubulose hydraulic structure shrinkage joint anti-leakage structure one of claims 1 to 3 Suo Shu, it is characterized in that: described sealant layer is two component polysulfide sealing compound layers.

5., according to the tubulose hydraulic structure shrinkage joint anti-leakage structure one of claims 1 to 3 Suo Shu, it is characterized in that: described waterstop is rubber fastening band.

6., according to the tubulose hydraulic structure shrinkage joint anti-leakage structure one of claims 1 to 3 Suo Shu, it is characterized in that: described press strip is metal bead.