Waterproof closing head structure of comprehensive pipe gallery higher than ground building

Abstract

The utility model discloses a waterproof closing head structure of a comprehensive pipe gallery building higher than the ground, cement mortar, a waterproof coiled material, a metal pressing strip and a brick wall are arranged outwards from a pipe gallery wall body, and the waterproof coiled material is arranged on the cement mortar, surrounds the pipe gallery wall body by a circle and is higher than the ground by not less than 50cm; the metal pressing strip is pressed on the top of the waterproof coiled material, and the waterproof coiled material and the metal pressing strip are fixed on the pipe gallery wall body through cement nails; the brick wall is arranged on the outer side of the waterproof coiled material; and a waterproof mortar inclined surface is arranged between the top of the brick wall and the pipe gallery wall body. The adhesive force of the waterproof layer is improved through cement mortar, the metal pressing strips serve as side face waterproof sealing, the brick wall serves as a waterproof protection layer, the waterproof mortar inclined face serves as top waterproof sealing, the structure manufacturing cost is low, and construction is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal engineering construction. Specifically, it relates to a waterproof termination structure for an integrated utility tunnel that is higher than a ground building. Background Technique

[0002] Integrated utility tunnels play an important role in urban road supporting facilities. However, the waterproofing of integrated utility tunnels is an important issue. The quality of waterproofing of integrated utility tunnels directly affects the operation of the tunnels and, over time, also affects the structural safety of the tunnels. Therefore, the quality of waterproofing of integrated utility tunnels is a key topic. The connection position between underground and above-ground is a key position for water leakage, and the quality of treatment directly affects the operation of the tunnels.

[0003] Currently, there are several related publicly disclosed patents for waterproof termination structures. For example, the invention patent with the application number CN202311200667.1 discloses a method for waterproof termination. A waterproof termination box is pre-embedded in advance during the process of steel bar binding, and then concrete is poured to ensure effective combination with the concrete wall structure. After the concrete structure construction is completed, the waterproof termination box is cut off before waterproof construction. Polyethylene waterproof coiled material is used as a water blocking curtain, and the waterproof materials of the wall or roof in the later stage can reduce subsequent maintenance costs.

[0004] The utility model with the application number CN202122733972.X discloses a waterproof termination for a roof, including an exterior wall and a planting roof slab. One side of the exterior wall is connected to a structural slab, and a curtain wall embedded part is connected inside the exterior wall. Moreover, a termination component is connected to the outer surface of the exterior wall. One side of the curtain wall embedded part is connected to a first additional layer and a second additional layer, and the first additional layer and the second additional layer are connected to each other. One side of the planting roof slab is connected to a first waterproof coiled material and an SBS coiled material.

[0005] It can be seen that the existing technology mainly relates to the methods for underground terminations in building engineering, and the methods are usually relatively complex. Therefore, it is necessary to study a waterproof termination structure for an integrated utility tunnel that is higher than a ground building and is convenient for construction. Content of the Utility Model

[0006] Due to the above-mentioned defects in the existing technology, the utility model provides a waterproof termination structure for an integrated utility tunnel that is higher than a ground building. By adopting a complete waterproof system including a waterproof layer, a metal pressing strip, and a waterproof mortar slope for waterproof sealing, and using a brick wall as a waterproof protection layer, the waterproof effect is improved and the construction is simple.

[0007] To achieve the above object, the utility model provides a waterproof termination structure for an integrated utility tunnel that is higher than a ground building, characterized in that at the internal angle formed by the part of the utility tunnel that is higher than the ground building and the ground, it is arranged outward from the utility tunnel wall:

[0008] Cement mortar, set within the laying range of the waterproof coiled material;

[0009] Waterproof coiled material, set on the cement mortar and around the pipe gallery wall for one week, with a height above the ground of not less than 50 cm;

[0010] Metal pressing strip, pressing on the top of the waterproof coiled material, and fixing the waterproof coiled material and the metal pressing strip on the pipe gallery wall through cement nails;

[0011] Brick wall, set outside the waterproof coiled material;

[0012] Waterproof mortar inclined plane, set between the top of the brick wall and the pipe gallery wall to ensure no leakage at the top and better waterproof effect.

[0013] Furthermore, the cement mortar is commercially available polymer cement mortar with a thickness of 3 mm. The polymer cement mortar can better improve the adhesion of the waterproof layer on the pipe gallery wall.

[0014] Furthermore, the waterproof coiled material is laid in multiple layers.

[0015] Furthermore, the overlapping width at both ends of the waterproof coiled material is not less than 80 mm, which can better ensure the waterproof performance of the waterproof layer.

[0016] Furthermore, the width of the metal pressing strip is 50 mm; the spacing of the cement nails is 250 mm.

[0017] Furthermore, the thickness of the brick wall is 120 mm, and the height is not less than the height of the waterproof coiled material.

[0018] Compared with the prior art, the above-mentioned utility model has the following advantages or beneficial effects:

[0019] (1) The utility model improves the adhesion of the waterproof layer through cement mortar, uses the metal pressing strip as the side waterproof seal, the brick wall as the waterproof protection layer, with a low structural cost, and the waterproof mortar inclined plane as the top waterproof seal to achieve a better waterproof effect;

[0020] (2) The utility model is applicable to the waterproof termination of the part of the elevated ground building in the utility tunnel, and the construction process is simple;

[0021] (3) The structure of the utility model is easy to understand for on-site workers, convenient to operate, and the quality is guaranteed. Description of the Drawings

[0022] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, the utility model and its features and advantages will become more obvious. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and the focus is on showing the gist of the utility model.

[0023] Figure 1 Elevation view of the waterproof termination structure according to an embodiment of the present utility model;

[0024] Figure 2 Structural schematic diagram of a cement nail according to an embodiment of the present utility model;

[0025] Wherein, 10, utility tunnel wall; 11, cement mortar; 12, waterproof coiled material; 2, metal pressing strip; 3, brick wall; 4, waterproof mortar inclined plane; 5, cement nail. Specific embodiments

[0026] The following further describes the structure of the present utility model in conjunction with the accompanying drawings and specific embodiments, but it is not a limitation of the present utility model.

[0027] In the description of the present application, the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and does not require the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model.

[0028] The polymer cement mortar involved in the following embodiments and examples includes cement, aggregate, and an organic polymer that can be dispersed in water, and is commercially available; the waterproof coiled material is a commercially available double-sided self-adhesive polymer modified asphalt waterproof coiled material.

[0029] Embodiment

[0030] Refer to Figure 1 and Figure 2 , this embodiment provides a waterproof termination structure for an integrated utility tunnel higher than a ground building. The part of the utility tunnel higher than the ground building and the inner corner formed with the ground are arranged outward from the utility tunnel wall 10:

[0031] Cement mortar 11, arranged within the paving range of the waterproof coiled material;

[0032] Waterproof coiled material 12, arranged on the polymer cement mortar and surrounding the utility tunnel wall 10 for one week, with a height above the ground not less than 50 cm;

[0033] Metal pressing strip 2, pressed on the top of the waterproof coiled material 12, and the waterproof coiled material 12 and the metal pressing strip 2 are fixed on the utility tunnel wall 10 through cement nails;

[0034] Brick wall 3, arranged outside the waterproof coiled material 12;

[0035] Waterproof mortar inclined plane 4, arranged between the top of the brick wall 3 and the utility tunnel wall 10.

[0036] The construction steps of the waterproof termination structure are exemplified as follows:

[0037] Step S1: Laying the waterproof coiled material for the part above the ground. First, clean the wall of the utility tunnel to ensure it is clean. Then, mark the coiled material laying line on the side wall. Next, apply polymer cement mortar 11, with the determined thickness of the cement mortar plaster being 3 mm. The range of the cement mortar plaster within the coiled material paving area should not be too large, and it should be plastered and paved simultaneously. Peel off the release film on the lower surface of the 4-mm-thick self-adhesive waterproof coiled material, and lay the self-adhesive waterproof coiled material 12 flat on the just-plastered mortar. Preferably, after laying the first coiled material, apply cement mortar again and lay the second coiled material, and so on. Use a trowel or rubber plate to pat and roll the upper surface of the coiled material to lift the slurry and expel the air under the coiled material, so that the coiled material is closely attached to the mortar. During overlapping, lift the transparent release film at the overlapping part of the lower-layer coiled material, and paste the upper-layer coiled material flat on the lower-layer coiled material. The overlapping width of the coiled material is not less than 80 mm. After the coiled material is laid, the laid coiled material is integrated with the coiled material of the underground part of the utility tunnel wall without interruption, and the coiled material is laid at least 50 cm above the ground to prevent ground rainwater from pouring in and affecting the operation quality of the utility tunnel.

[0038] Step S2: Construction of the metal strip 2 and cement nails 5. To prevent the coiled material from falling off from the top, install a metal strip 2 around the structure at a position 50 mm below the top of the coiled material level. Use cement nails 5 to fix the waterproof coiled material 12 and the metal strip 2 on the wall 10 of the utility tunnel. The spacing of the cement nails 5 is 250 mm. Preferably, a rubber washer is set under each cement nail to prevent the cement nail from tearing the coiled material.

[0039] Step S3: Construction of the brick wall 3. Set a 120-mm-thick brick wall outside the waterproof coiled material 12 for the part above the ground as a protective layer for the coiled material. Preferably, the bricks for masonry are cement solid bricks with a strength grade of MU5 and dimensions of 240*115*90 mm. The masonry is carried out from both ends of the side wall to the middle. Before masonry, level and tamp the base. The daily masonry height does not exceed 1 m to prevent the masonry from collapsing when the strength has not reached a certain level. Step S4: Construction of the waterproof mortar slope 3. Set a layer of slope (similar to the form of a water-dispersing slope) between the top of the brick wall 3 and the wall 10 of the utility tunnel with waterproof mortar to ensure no leakage at the top and better waterproof effect.

[0040] Thus, the waterproof termination structure is effectively connected to the main body of the utility tunnel building, ensuring the structural waterproofing of the part of the utility tunnel above the ground building, and having the effects of clear structure, easy to understand, simple construction process, and low cost.

[0041] In summary, the present utility model provides a waterproof termination structure for an integrated pipe gallery that is higher than the ground building, which is arranged outward from the pipe gallery wall: cement mortar, waterproof coiled material, metal pressing strip, brick wall. The waterproof coiled material is arranged on the cement mortar and wraps around the pipe gallery wall for one week, with a height above the ground of not less than 50 cm; the metal pressing strip is pressed on the top of the waterproof coiled material, and the waterproof coiled material and the metal pressing strip are fixed on the pipe gallery wall through cement nails; the brick wall is arranged outside the waterproof coiled material; a waterproof mortar slope is arranged between the top of the brick wall and the pipe gallery wall. The present utility model improves the adhesion of the waterproof layer through cement mortar, uses the metal pressing strip as the side waterproof seal, the brick wall as the waterproof protection layer, and the waterproof mortar slope as the top waterproof seal. The structure has a low cost and is convenient for construction.

[0042] The above describes the preferred embodiments of the present utility model. It should be understood that the present utility model is not limited to the above specific implementation manners, and the equipment and structures not described in detail should be understood to be implemented in the ordinary manner in the art; any person skilled in the art can make many possible changes and modifications to the technical solution of the present utility model, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present utility model, which does not affect the essence of the present utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still fall within the scope of the protection of the technical solution of the present utility model.

Claims

1. A waterproof termination structure for an integrated pipe gallery that is higher than a ground building, characterized in that, The part of the pipe gallery that is higher than the ground building and the internal angle formed with the ground are arranged outward from the pipe gallery wall (10): Cement mortar (11), arranged within the laying range of the waterproof coiled material; Waterproof coiled material (12), arranged on the cement mortar (11), surrounding the pipe gallery wall (10) for one week, with a height above the ground of not less than 50 cm; Metal pressing strip (2), pressing on the top of the waterproof coiled material (12), and fixing the waterproof coiled material (12) and the metal pressing strip (2) on the pipe gallery wall (10) through cement nails; Brick wall (3), arranged outside the waterproof coiled material (12); Waterproof mortar inclined plane (4), arranged between the top of the brick wall (3) and the pipe gallery wall (10).

2. The waterproof termination structure of the utility tunnel higher than the ground building according to claim 1, characterized in that, The cement mortar (11) is commercially available polymer cement mortar with a thickness of 3 mm.

3. The waterproof termination structure of the utility tunnel higher than the ground building according to claim 1 or 2, characterized in that, The waterproof coiled material (12) is laid in multiple layers.

4. The waterproof termination structure of the utility tunnel higher than the ground building according to claim 1 or 2, characterized in that, The overlapping width at both ends of the waterproof coiled material (12) is not less than 80 mm.

5. The waterproof termination structure of the utility tunnel higher than the ground building according to claim 1, characterized in that, The width of the metal pressing strip (2) is 50 mm; the spacing of the cement nails is 250 mm.

6. The waterproof termination structure of the utility tunnel higher than the ground building according to claim 1, characterized in that, The thickness of the brick wall (3) is 120 mm, and the height is not less than the height of the waterproof coiled material (12).

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