Self-supporting type self-adhesive rubber waterstop

Abstract

The utility model discloses a self-supporting type self-adhesive rubber waterstop, which relates to the technical field of waterstop and waterproofing of tunnel joints, and comprises a waterstop body, at least two convex ribs are arranged on the upper surface of the waterstop body, and self-adhesive layers are symmetrically arranged on the upper surface of the waterstop body; the lower surface of the waterstop body is a plane or is provided with at least two convex ribs, and self-adhesive layers are symmetrically arranged on the lower surface of the waterstop body. According to the self-supporting type self-adhesive rubber waterstop, the supporting mechanism is compounded in the waterstop body or on the surface of the waterstop body, so that the transverse rigidity of the waterstop is improved, the sagging problem of the waterstop in the using process is solved, the risk of concrete block falling caused by cutting a lining through a middle-buried type waterstop is reduced, and the operation safety of a tunnel is guaranteed; the method has the advantages of clear principle, simple structure, simple construction and easy guarantee of construction quality.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel joint water-stopping, in particular to a self-supporting self-adhesive rubber water-stop. Background Art

[0002] The existing primary waterproofing technology for railway tunnel lining joints uses a "back-attached waterstop" combined with an embedded waterstop. This approach, however, has led to a significant problem with concrete falling at lining joints. After installation, the embedded waterstop, due to insufficient lateral rigidity, sags on the side where concrete is to be poured under the action of gravity. This is particularly severe in the tunnel arch haunch and above. During the lining concrete pouring process, the sagging waterstop can further deflect, twist, and misalign, causing the waterstop to cut into the lining concrete. This results in a significant lack of thickness at the junction of local concrete blocks with the main lining, increasing the risk of concrete falling and seriously endangering vehicle operation safety.

[0003] To minimize post-installation sagging of embedded waterstops, existing technical measures involve staggering short longitudinal rebars along the tunnel circumference on the upper and lower surfaces of the waterstop. The rebars are then clamped to the waterstop using a lining trolley end template. This complex construction process results in unpredictable quality, and there's a risk of water leakage at the interface between the rebars and the waterstop. Furthermore, the rebars restrict expansion and contraction between lining joints, increasing stress within the structural concrete. Summary of the Invention

[0004] The purpose of this utility model is to provide a self-supporting self-adhesive rubber waterstop to solve the problems existing in the above-mentioned prior art, improve the lateral stiffness of the waterstop, reduce the sagging problem of the waterstop during use, reduce the risk of concrete falling caused by cutting the lining of the embedded waterstop, and ensure the safety of tunnel operation.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] The utility model provides a self-supporting self-adhesive rubber waterstop, comprising a waterstop body, a self-adhesive layer and a supporting mechanism, wherein the upper surface of the waterstop body is provided with at least two convex ribs, and the upper surface of the waterstop body is symmetrically provided with the self-adhesive layer; the lower surface of the waterstop body is flat or provided with at least two convex ribs; the supporting mechanism is arranged on the lower surface or inside of the waterstop body.

[0007] Optionally, the convex rib is in a T-shaped, triangular or trapezoidal structure.

[0008] Optionally, the supporting mechanism is intermittently or continuously compounded on the lower surface or inside of the waterstop body along the longitudinal direction of the waterstop body, with both sides 2.5mm to 100mm away from the lateral edge of the waterstop, and the center spacing when arranged longitudinally is 2cm to 150cm.

[0009] Optionally, the cross-sectional shape of the support mechanism is rectangular, circular, elliptical, trapezoidal or triangular, and the thickness or diameter of the support mechanism is 0.1 mm to 5 mm.

[0010] Optionally, the support mechanism is made of galvanized steel plate or stainless steel plate or steel bar or rubber-plastic blend material or modified rubber material or plastic or reinforced nylon or carbon fiber.

[0011] Optionally, the self-adhesive layer is symmetrically arranged between the ribs on both sides of the upper surface of the waterstop body.

[0012] Optionally, self-adhesive layers are symmetrically provided on both sides of the lower surface of the waterstop body.

[0013] Optionally, the self-adhesive layer has a width of 10 mm to 60 mm and a thickness of 0.1 mm to 3 mm.

[0014] Optionally, the self-adhesive layer material is non-asphalt polymer self-adhesive, pressure-sensitive polyurethane adhesive, pressure-sensitive rubber putty, pressure-sensitive homopolymer or copolymer acrylic adhesive, or rubber-modified asphalt adhesive.

[0015] Compared with the prior art, the utility model has achieved the following technical effects:

[0016] The utility model discloses a self-supporting self-adhesive rubber waterstop, which improves the lateral stiffness of the waterstop by means of a composite support mechanism inside or on the surface of the waterstop body, thereby reducing the sagging problem of the waterstop during use, and reducing the risk of concrete falling caused by cutting the lining of the embedded waterstop, thereby ensuring the safety of tunnel operation. The utility model has a clear principle, a simple structure, easy construction, and easy to ensure construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the structure of a self-supporting self-adhesive rubber waterstop in the utility model, in which the supporting mechanism is arranged at intervals on the lower surface of the body (the lower surface has a flat plate structure and is not provided with self-adhesive glue);

[0019] Figure 2 This is a schematic cross-sectional view of a self-supporting self-adhesive rubber waterstop support mechanism of the present invention, which is arranged at intervals on the lower surface of the body (the lower surface is a flat plate structure and no self-adhesive adhesive is provided);

[0020] Figure 3 This is a structural diagram of a self-supporting self-adhesive rubber waterstop strip of the utility model, in which the supporting mechanism is arranged at intervals on the lower surface of the body (the lower surface has a flat plate structure and is provided with self-adhesive glue);

[0021] Figure 4 This is a schematic cross-sectional view of a self-supporting self-adhesive rubber waterstop support mechanism of the present invention, which is arranged at intervals on the lower surface of the body (the lower surface is a flat plate structure and is provided with self-adhesive glue);

[0022] Figure 5 This is a structural diagram of a self-supporting self-adhesive rubber waterstop support mechanism of the utility model continuously arranged on the lower surface of the body (the lower surface has a flat plate structure and is not provided with self-adhesive glue);

[0023] Figure 6 This is a cross-sectional structural diagram of a self-supporting self-adhesive rubber waterstop support mechanism continuously arranged on the lower surface of the body (the lower surface is a flat plate structure and no self-adhesive adhesive is provided);

[0024] Figure 7 This is a structural diagram of a self-supporting self-adhesive rubber waterstop support mechanism of the utility model continuously arranged on the lower surface of the body (the lower surface has a flat plate structure and is provided with self-adhesive glue);

[0025] Figure 8 This is a schematic cross-sectional view of a self-supporting self-adhesive rubber waterstop support mechanism continuously arranged on the lower surface of the body (the lower surface is a flat plate structure and is provided with self-adhesive glue);

[0026] Figure 9 This is a schematic diagram of the structure of a self-supporting self-adhesive rubber waterstop strip of the utility model, in which the supporting mechanism is arranged at intervals inside the body (the lower surface has a flat plate structure and is not provided with self-adhesive glue);

[0027] Figure 10 This is a schematic cross-sectional view of a self-supporting self-adhesive rubber waterstop support mechanism of the present invention, which is arranged at intervals inside the body (the lower surface is a flat plate structure and no self-adhesive adhesive is provided);

[0028] Figure 11 This is a structural diagram of a self-supporting self-adhesive rubber waterstop strip of the utility model, in which the supporting mechanism is arranged at intervals inside the body (the lower surface has a flat plate structure and is provided with self-adhesive glue);

[0029] Figure 12 This is a schematic cross-sectional view of a self-supporting self-adhesive rubber waterstop support mechanism of the present invention, which is arranged at intervals inside the body (the lower surface is a flat plate structure with self-adhesive adhesive provided);

[0030] Figure 13This is a structural diagram of a self-supporting self-adhesive rubber waterstop strip support mechanism continuously arranged inside the body (the lower surface has a flat plate structure and is not provided with self-adhesive glue);

[0031] Figure 14 This is a cross-sectional structural diagram of a self-supporting self-adhesive rubber waterstop support mechanism continuously arranged inside the body (the lower surface is a flat plate structure and no self-adhesive is provided);

[0032] Figure 15 This is a structural diagram of a self-supporting self-adhesive rubber waterstop strip support mechanism continuously arranged inside the body (the lower surface has a flat plate structure and is provided with self-adhesive glue);

[0033] Figure 16 This is a cross-sectional structural diagram of a self-supporting self-adhesive rubber waterstop support mechanism continuously arranged inside the body (the lower surface is a flat plate structure and is provided with self-adhesive glue);

[0034] Figure 17 This is a structural diagram of a self-supporting self-adhesive rubber waterstop strip of the utility model, in which the supporting mechanism is arranged at intervals inside the body (the lower surface has a rib structure and is not provided with self-adhesive glue);

[0035] Figure 18 This is a schematic cross-sectional view of a self-supporting self-adhesive rubber waterstop strip support mechanism of the present invention, which is arranged at intervals inside the body (with a rib structure on the lower surface and no self-adhesive glue);

[0036] Figure 19 This is a structural diagram of a self-supporting self-adhesive rubber waterstop of the present invention, in which the supporting mechanism is arranged at intervals inside the body (the lower surface has a rib structure and is provided with self-adhesive glue);

[0037] Figure 20 This is a schematic cross-sectional view of the utility model of a self-supporting self-adhesive rubber waterstop with support mechanisms spaced apart inside the body (with a ribbed structure on the lower surface and self-adhesive adhesive);

[0038] Figure 21 This is a structural diagram of a self-supporting self-adhesive rubber waterstop strip support mechanism continuously arranged inside the body (the lower surface has a rib structure and is not provided with self-adhesive glue);

[0039] Figure 22 This is a schematic cross-sectional view of a self-supporting self-adhesive rubber waterstop support mechanism continuously arranged inside the body (with a rib structure on the lower surface and no self-adhesive glue);

[0040] Figure 23This is a structural diagram of a self-supporting self-adhesive rubber waterstop strip support mechanism continuously arranged inside the body (the lower surface has a rib structure and is provided with self-adhesive glue);

[0041] Figure 24 This is a cross-sectional structural diagram of a self-supporting self-adhesive rubber waterstop strip support mechanism continuously arranged inside the body (with a rib structure on the lower surface and self-adhesive glue);

[0042] Figure 25 This is a schematic diagram of the AA cross-sectional structure of a self-supporting self-adhesive rubber waterstop of the utility model;

[0043] Figure 26 This is a schematic diagram of the cross-sectional structure of a self-supporting self-adhesive rubber waterstop BB of the utility model;

[0044] Figure 27 This is a schematic diagram of the CC cross-sectional structure of a self-supporting self-adhesive rubber waterstop of the present invention;

[0045] Figure 28 This is a schematic diagram of the cross-sectional structure of a self-supporting self-adhesive rubber waterstop DD of the utility model;

[0046] Figure 29 This is a schematic diagram of the cross-sectional structure of a self-supporting self-adhesive rubber waterstop EE of the utility model;

[0047] Figure 30 This is a schematic diagram of the cross-sectional structure of a self-supporting self-adhesive rubber waterstop of the utility model;

[0048] Figure 31 This is a schematic diagram of the cross-sectional structure of a self-supporting self-adhesive rubber waterstop GG of the present invention;

[0049] Figure 32 This is a schematic diagram of the cross-sectional structure of a self-supporting self-adhesive rubber waterstop HH of the utility model;

[0050] Figure 33 This is a schematic diagram of the cross-sectional structure of a self-supporting self-adhesive rubber waterstop II of the present invention;

[0051] Figure 34 This is a schematic diagram of the cross-sectional structure of a self-supporting self-adhesive rubber waterstop JJ of the present invention;

[0052] Figure 35 This is a schematic diagram of the cross-sectional structure of a self-supporting self-adhesive rubber waterstop KK of the present invention;

[0053] Figure 36 This is a schematic diagram of the installation of a self-supporting self-adhesive rubber waterstop of the utility model.

[0054] Description of reference numerals:

[0055] 1. Self-supporting self-adhesive rubber waterstop; 2. Waterstop body; 3. Self-adhesive layer; 4. Support mechanism; 21. Ribs; 51. Primary concrete support; 52. Waterproof layer; 53. Adhesive layer; 54. Back-mounted waterstop; 55. Wooden formwork; 56. Outer end formwork; 57. Inner end formwork; 58. Lining concrete. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0057] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0058] like Figures 1 to 36 As shown, this embodiment provides a self-supporting self-adhesive rubber waterstop, including a waterstop body 2, the upper surface of the waterstop body 2 is provided with at least two convex ribs 21, and the upper surface of the waterstop body 2 is symmetrically provided with a self-adhesive layer 3; the lower surface of the waterstop body 2 is flat or provided with at least two convex ribs 21; the supporting mechanism 1 is arranged on the lower surface or inside of the waterstop body 2.

[0059] In this embodiment, the ribs 21 are in a T-shape, a triangle or a trapezoidal structure.

[0060] The support mechanism 4 is intermittently or continuously compounded on the lower surface or inside of the waterstop body 2 along the longitudinal direction, with both sides 2.5mm to 100mm away from the lateral edge of the waterstop, and the center spacing when arranged longitudinally is 2cm to 150cm.

[0061] The cross-sectional shape of the support mechanism 4 is rectangular, circular, elliptical, trapezoidal or triangular, and the thickness or diameter of the support mechanism 4 is 0.1 mm to 5 mm.

[0062] The support mechanism 4 is made of galvanized steel plate, stainless steel plate, steel bar, rubber-plastic blend material, modified rubber material, plastic, reinforced nylon, carbon fiber, etc.

[0063] The self-adhesive layer 3 is preferably symmetrically arranged between the ribs 21 on both sides of the upper surface of the waterstop body 2. The self-adhesive layer 3 can also be symmetrically arranged on both sides of the lower surface of the waterstop body 2. The self-adhesive layer 3 has a width of 10mm to 60mm and a thickness of 0.1mm to 3mm. The self-adhesive layer 33 firmly bonds to the lining concrete 58, bridging the water seepage channel between the lining concrete 58 and the waterstop body 22.

[0064] The lower surface of the waterstop body 2 can be symmetrically provided with a self-adhesive layer 3. According to the address conditions and groundwater development conditions of different regions, for water-rich areas with higher requirements for waterproof performance, the self-adhesive layer 3 can be symmetrically provided on the lower surface of the waterstop body 2.

[0065] The material of the self-adhesive layer 3 is non-asphalt polymer self-adhesive or pressure-sensitive polyurethane adhesive or pressure-sensitive rubber putty or pressure-sensitive homopolymer or copolymer acrylic adhesive, rubber-modified asphalt adhesive or a mixture of two or more thereof.

[0066] like Figure 36 As shown, the installation process of a self-supporting self-adhesive rubber waterstop of the utility model is as follows: first, the self-supporting self-adhesive rubber waterstop 1 is arranged on the upper surface of the inner end form 57 of the lining trolley and the position of the self-supporting self-adhesive rubber waterstop 1 is adjusted to the center; then the outer end form 56 is installed, and the self-supporting self-adhesive rubber waterstop 1 is clamped at the same time; then the adhesive layer 53 is used to stick the back-sticking waterstop 54 on the waterproof layer 52 at the bottom of the primary support concrete 51, and then the wooden form 55 is used to tighten the back-sticking waterstop 54 to the waterproof layer 52 at the bottom of the primary support concrete 51; finally, the end form is fixed as a whole and the lining concrete 58 is poured.

[0067] In order to verify the lateral stiffness enhancement effect of the self-supporting self-adhesive rubber waterstop, a lateral stiffness comparison test between the self-supporting self-adhesive rubber waterstop and the ordinary rubber waterstop was carried out. The test results are shown in Table 1.

[0068] Table 1 Comparative test results of lateral stiffness of self-supporting self-adhesive rubber waterstop and ordinary rubber waterstop

[0069]

[0070]

[0071] The test results show that the sagging of the self-supporting self-adhesive rubber waterstop is reduced by 65% ​​to 89% compared with the ordinary rubber waterstop, and the lateral stiffness is significantly enhanced.

[0072] To sum up, the utility model is a self-supporting self-adhesive rubber waterstop, which improves the lateral stiffness of the waterstop by a composite support mechanism inside or on the surface of the waterstop body, thereby reducing the sagging problem of the waterstop during use, and reducing the risk of concrete falling caused by cutting the lining of the embedded waterstop, thereby ensuring the safety of tunnel operation. The principle is clear, the structure is simple, the construction is easy, and the construction quality is easy to guarantee.

[0073] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0074] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A self-supporting self-adhesive rubber waterstop, characterized in that: It includes a waterstop body, a self-adhesive layer and a supporting mechanism. The upper surface of the waterstop body is provided with at least two convex ribs, and the self-adhesive layer is symmetrically provided on the upper surface of the waterstop body; the lower surface of the waterstop body is flat or provided with at least two convex ribs; the supporting mechanism is provided on the lower surface or inside of the waterstop body.

2. The self-supporting self-adhesive rubber waterstop according to claim 1, characterized in that: The convex ribs are in a T-shaped, triangular or trapezoidal structure.

3. The self-supporting self-adhesive rubber waterstop according to claim 1, characterized in that: The support mechanism is intermittently or continuously compounded on the lower surface or inside of the waterstop body along the longitudinal direction of the waterstop body, with both sides 2.5mm to 100mm away from the lateral edge of the waterstop, and the center spacing when arranged longitudinally is 2cm to 150cm.

4. The self-supporting self-adhesive rubber waterstop according to claim 1, characterized in that: The cross-sectional shape of the support mechanism is rectangular, circular, elliptical, trapezoidal or triangular, and the thickness or diameter of the support mechanism is 0.1 mm to 5 mm.

5. The self-supporting self-adhesive rubber waterstop according to claim 1, characterized in that: The support mechanism is made of galvanized steel plate, stainless steel plate, steel bar, rubber-plastic blend material, modified rubber material, plastic, reinforced nylon or carbon fiber.

6. The self-supporting self-adhesive rubber waterstop according to claim 1, characterized in that: The self-adhesive layer is symmetrically arranged between the ribs on both sides of the upper surface of the waterstop body.

7. The self-supporting self-adhesive rubber waterstop according to claim 6, characterized in that: Self-adhesive layers are symmetrically provided on both sides of the lower surface of the waterstop body.

8. The self-supporting self-adhesive rubber waterstop according to claim 1 or 7, characterized in that: The self-adhesive layer has a width of 10 mm to 60 mm and a thickness of 0.1 mm to 3 mm.

9. The self-supporting self-adhesive rubber waterstop according to claim 1, characterized in that: The self-adhesive layer material is non-asphalt polymer self-adhesive or pressure-sensitive polyurethane adhesive or pressure-sensitive rubber putty or pressure-sensitive homopolymer or copolymer acrylic adhesive or rubber-modified asphalt adhesive.

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