Deformation joint waterproof structure suitable for urban tunnel

Abstract

The utility model relates to a deformation joint waterproof structure suitable for an urban tunnel, which is arranged above a deformation joint and comprises a waterproof main body and a plurality of fixing parts, the waterproof main body comprises a first connecting part, a middle part and a second connecting part which are integrally formed, the first connecting part is fixedly connected with the first concrete pavement layer through a plurality of fixing parts, and the second connecting part is fixedly connected with the second concrete pavement layer through a plurality of fixing parts; asphalt surface layers are arranged on the two sides of the middle part and cover the first connecting part and the second connecting part, and the height of the asphalt surface layers is the same as that of the waterproof body. The section of the waterproof main body is omega-shaped, the lower part of the waterproof main body is enclosed to form a semi-closed drainage channel, and the bottom of the drainage channel is communicated with the deformation joint. According to the deformation joint waterproof structure suitable for the urban tunnel, the structure is simplified, the deformation joint waterproof structure can be rapidly assembled and disassembled, the deformation joint waterproof structure can be rapidly maintained in the later period, and the manufacturing cost and the maintenance cost are remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a deformation joint waterproof structure suitable for urban tunnels. Background Art

[0002] Chinese patent document CN110747909A discloses a waterproof structure for deformation joints of open-cut tunnels. A waterproof roll, a waterproof roll reinforcement layer and an external water stop are sequentially arranged at the deformation joints of the bottom plate on the outside of the tunnel structure from the outside to the inside. An embedded steel-edge rubber water stop, a PE foam rod and a high modulus polyurethane sealant are sequentially arranged inside the deformation joints of the bottom plate from the outside to the inside. The high modulus polyurethane sealant is used to caulk the deformation joints of the bottom plate on the inner side of the main structure of the tunnel. The defects and shortcomings of the waterproof structure for deformation joints of open-cut tunnels are: the structure is complex and not easy to disassemble and repair. Specifically, the structure of urban tunnels is deeply buried in a geological environment with water. At the same time, the concrete structure is affected by temperature shrinkage, surrounding disturbances, etc., and joints are deformed, resulting in frequent damage, cracking, water leakage and other defects on the road surface at the deformation joints. The existing maintenance method of the above-mentioned waterproof structure for deformation joints of open-cut tunnels is to use the method of overall demolition, pre-embedded channel steel to divert water, and pave asphalt materials, which is time-consuming, labor-intensive, and expensive.

[0003] Therefore, there is an urgent need to provide a deformation joint waterproof structure suitable for urban tunnels that has a simple structure and can be quickly installed and dismantled. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a deformation joint waterproof structure suitable for urban tunnels, which solves the technical problems that the existing deformation joint waterproof structure is complex and inconvenient to install and dismantle.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] The embodiment of the utility model provides a deformation joint waterproof structure suitable for urban tunnels, wherein the deformation joint waterproof structure is arranged above the deformation joint and comprises a waterproof body and a plurality of fixing components;

[0009] The waterproof body includes an integrally formed first connection part, a middle part and a second connection part, the first connection part is fixedly connected to the first concrete pavement layer through the multiple fixing parts, and the second connection part is fixedly connected to the second concrete pavement layer through the multiple fixing parts; asphalt surface layers are provided on both sides of the middle part, and the asphalt surface layers cover the first connection part and the second connection part; the cross-section of the waterproof body is Ω-shaped, and its lower part encloses a semi-enclosed drainage channel, and the bottom of the drainage channel is connected to the deformation joint.

[0010] Optionally, the height of the asphalt surface layer is the same as the height of the waterproof body.

[0011] Optionally, an end of the drainage channel is communicated with a drainage ditch.

[0012] Optionally, the waterproof body is a high modulus rubber waterproof body.

[0013] Optionally, the waterproof body is a steel plate rubber waterproof body, which includes a rubber shell, a first steel plate is embedded in the upper part of the rubber shell, and two left-right symmetrical second steel plates are arranged at the lower part of the rubber shell, and the cross-section of the second steel plate is L-shaped.

[0014] Optionally, the fixing components are fixing bolts and nuts, the fixing bolts are evenly distributed on both sides of the waterproof body, and the bolt heads are pre-embedded in the first concrete pavement layer or the second concrete pavement layer, and a plurality of connecting holes are provided on the first connecting part and the second connecting part. The fixing bolts pass through the connecting holes one by one and are screwed into the nuts, thereby fixing the waterproof body and the first concrete pavement layer and the second concrete pavement layer together.

[0015] Optionally, a protrusion is provided at one end of the waterproof body, and a groove is provided at the other end of the waterproof body, and the protrusion and the groove are mortise and tenon structures.

[0016] (III) Beneficial effects

[0017] The beneficial effects of the utility model are as follows: the expansion joint waterproof structure suitable for urban tunnels of the utility model is arranged above the expansion joint, including a waterproof main body and a plurality of fixing components; the waterproof main body includes an integrally formed first connection part, a middle part and a second connection part, the first connection part is fixedly connected to the first concrete pavement layer through a plurality of fixing components, and the second connection part is fixedly connected to the second concrete pavement layer through a plurality of fixing components; asphalt surface layers are arranged on both sides of the middle part, and the asphalt surface layers cover the first connection part and the second connection part; the cross-section of the waterproof main body is Ω-shaped, and its lower part encloses a semi-enclosed drainage channel, and the bottom of the drainage channel is connected to the expansion joint. Compared with the prior art, the expansion joint waterproof structure of the utility model simplifies the structure, can be quickly installed and disassembled, and can be quickly repaired in the later stage, which significantly reduces the manufacturing cost and maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of Embodiment 1 of the expansion joint waterproof structure applicable to urban tunnels of the utility model;

[0019] Figure 2 for Figure 1 A schematic top view of the waterproof body in FIG.

[0020] Figure 3 It is a structural schematic diagram of a waterproof body embodiment 2 of the expansion joint waterproof structure of the utility model;

[0021] Figure 4 It is a top view schematic diagram of a waterproof body embodiment 3 of the expansion joint waterproof structure of the utility model;

[0022] Figure 5 for Figure 4 A schematic rear view of the waterproof body in FIG.

[0023] Figure 6 for Figure 5 A partial cross-sectional view of the two waterproof bodies after they are joined at the center line AA Figure 1 ;

[0024] Figure 7 for Figure 5 A partial cross-sectional view of the two waterproof bodies after they are joined at the center line AA Figure 2 .

[0025] [Description of Reference Numerals]

[0026] 1: first concrete pavement layer; 2: second concrete pavement layer; 3: expansion joint; 4: waterproof body; 41: first connection part; 42: middle part; 43: second connection part; 44: drainage channel; 5: fixing part; 6: asphalt surface layer; 7: rubber shell; 8: first steel plate; 9: second steel plate; 10: protrusion; 11: groove. DETAILED DESCRIPTION

[0027] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific implementation methods. Figure 1 The orientation is used as a reference.

[0028] Embodiment 1:

[0029] See also Figure 1 and Figure 2 , Figure 1 The schematic diagram of the structure of the expansion joint waterproof structure applicable to urban tunnels in this embodiment is shown. Figure 2 A schematic top view of the waterproof body of this embodiment is shown.

[0030] This embodiment provides a deformation joint waterproof structure suitable for urban tunnels. The deformation joint waterproof structure is arranged above the deformation joint 3 and includes a waterproof body 4 and a plurality of fixing components 5.

[0031] The waterproof body 4 includes an integrally formed first connection part 41, a middle part 42 and a second connection part 43. The first connection part 41 is fixedly connected to the first concrete pavement layer 1 through a plurality of fixing parts 5, and the second connection part 43 is fixedly connected to the second concrete pavement layer 2 through a plurality of fixing parts 5. Asphalt surface layers 6 are provided on both sides of the middle part 42. The asphalt surface layers 6 cover the first connection part 41 and the second connection part 43, and the height of the asphalt surface layers 6 is the same as the height of the waterproof body 4; the cross-section of the first connection part 41, the middle part 42 and the second connection part 43 is Ω-shaped, and the lower part thereof encloses a semi-enclosed drainage channel 44, and the bottom of the drainage channel 44 is connected to the deformation joint 3.

[0032] Furthermore, the end of the drainage channel 44 is communicated with the drainage ditch to drain the leaked water.

[0033] The working principle of the deformation joint waterproof structure applicable to urban tunnels of this embodiment is as follows: First, the leakage water below the first concrete pavement layer 1 and the second concrete pavement layer 2 enters the drainage channel 44 at the bottom of the waterproof body 4 through the deformation joint 3, and is discharged into the drainage ditch along the drainage channel 44 to achieve the purpose of drainage. Secondly, the first connecting part 41, the second connecting part 43 and the asphalt surface layers 6 on both sides jointly form the tunnel surface layer for carrying traffic loads.

[0034] In this embodiment, the waterproof body 4 is a high modulus rubber waterproof body. The high modulus rubber waterproof body has a strong ability to resist elastic deformation and can bear the pressure of the car.

[0035] In this embodiment, the fixing components 5 are fixing bolts and nuts, the fixing bolts are evenly distributed on both sides of the waterproof body 4, and the bolt heads are pre-buried in the first concrete pavement layer 1 or the second concrete pavement layer 2. A plurality of connecting holes are provided on the first connecting part 41 and the second connecting part 43. The fixing bolts pass through the connecting holes one by one and are screwed together with the nuts, thereby fixing the waterproof body 4 and the first concrete pavement layer 1 and the second concrete pavement layer 2 together.

[0036] Embodiment 2:

[0037] This embodiment provides another expansion joint waterproof structure suitable for urban tunnels. Compared with the embodiment 1, the waterproof body 4 of this embodiment is a steel plate rubber waterproof body, which has a rubber shell 7, a first steel plate 8 and a second steel plate 9. The first steel plate 8 is embedded in the upper part of the rubber shell 7, and two left-right symmetrical second steel plates 9 are set in the lower part of the rubber shell 7. The cross section of the second steel plate 9 is L-shaped. The purpose of embedding the steel plate in the rubber of the waterproof body 4 of this embodiment is to improve the strength and resist elastic deformation.

[0038] Embodiment 3:

[0039] Reference Figure 4 and Figure 5 This embodiment provides another deformation joint waterproof structure suitable for urban tunnels. Compared with the embodiment 1, the waterproof body 4 of this embodiment is provided with a protrusion 10 at one end, and a groove 11 at the other end. The protrusion 10 and the groove 11 are mortise and tenon structures. The purpose of such a setting is that when two deformation joint waterproof structures are connected end to end, the protrusion 10 of one waterproof body 4 is engaged with the groove 11 of the other waterproof body 4, so as to prevent water leakage at the connection of the two deformation joint waterproof structures.

[0040] Furthermore, the cross-sections of the protrusions 10 and the grooves 11 on the waterproof body 4 of this embodiment may be regular rectangles (see Figure 6 ), or an irregular shape (see Figure 7 ), as long as the two can bite each other to achieve the function of preventing water leakage at the connection.

[0041] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0044] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0045] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A waterproof structure for expansion joints in urban tunnels, characterized by: The deformation joint waterproof structure is arranged above the deformation joint (3), and comprises a waterproof body (4) and a plurality of fixing components (5); The waterproof body (4) comprises an integrally formed first connection portion (41), a middle portion (42) and a second connection portion (43); the first connection portion (41) is fixedly connected to the first concrete pavement layer (1) via the plurality of fixing components (5); the second connection portion (43) is fixedly connected to the second concrete pavement layer (2) via the plurality of fixing components (5); asphalt surface layers (6) are provided on both sides of the middle portion (42); the asphalt surface layers (6) cover the first connection portion (41) and the second connection portion (43); the cross section of the waterproof body (4) is Ω-shaped, and a semi-enclosed drainage channel (44) is enclosed in its lower portion; the bottom of the drainage channel (44) is connected to the deformation joint (3).

2. The expansion joint waterproof structure according to claim 1, characterized in that: The height of the asphalt surface layer (6) is the same as the height of the waterproof body (4).

3. The expansion joint waterproof structure according to claim 2, characterized in that: The end of the drainage channel (44) is communicated with the drainage ditch.

4. The expansion joint waterproof structure according to claim 2, characterized in that: The waterproof body (4) is a high modulus rubber waterproof body.

5. The expansion joint waterproof structure according to claim 2, characterized in that: The waterproof body (4) is a steel plate rubber waterproof body, which comprises a rubber shell (7), a first steel plate (8) is embedded in the upper part of the rubber shell (7), and two left-right symmetrical second steel plates (9) are arranged in the lower part of the rubber shell (7), and the cross section of the second steel plate (9) is L-shaped.

6. The expansion joint waterproof structure according to claim 1, characterized in that: The fixing components (5) are fixing bolts and nuts. The fixing bolts are evenly distributed on both sides of the waterproof body (4), and the bolt heads are pre-buried in the first concrete paving layer (1) or the second concrete paving layer (2). The first connecting portion (41) and the second connecting portion (43) are provided with a plurality of connecting holes. The fixing bolts pass through the connecting holes one by one and are screwed together with the nuts, thereby fixing and connecting the waterproof body (4) and the first concrete paving layer (1) and the second concrete paving layer (2).

7. The expansion joint waterproof structure according to claim 1, characterized in that: A protrusion (10) is provided at one end of the waterproof body (4), and a groove (11) is provided at the other end of the waterproof body (4); the protrusion (10) and the groove (11) are mortise and tenon structures.

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