Novel net-shaped waterproof and drainage plate with drainage channel

Abstract

A novel net-shaped waterproof and drainage plate with drainage channels relates to the technical field of waterproof and drainage plates and comprises a waterproof and drainage plate body, the waterproof and drainage plate body is longitudinally provided with a plurality of longitudinal convex shell drainage channels formed by convex shell linear arrays, and the waterproof and drainage plate body is transversely provided with a plurality of transverse convex shell drainage channels formed by convex shell linear arrays. And the top of the longitudinal convex shell drainage channel is fixedly connected with an adhesive tape through a hot-melt pressure-sensitive adhesive. The net-shaped drainage structure with the transverse and longitudinal specific drainage channels is adopted, the compressive strength of the convex shells is enhanced, the drainage moving line is optimized, the effective area of the drainage channels is enlarged, it is ensured that the waterproof and drainage plate can still keep good waterproof and drainage capacity in a high-pressure surrounding rock tunnel, the problems of unsmooth drainage and blockage are effectively solved, and the service life of the waterproof and drainage plate is prolonged. And the overall waterproof and drainage performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage plates, and specifically, to a novel mesh drainage plate with drainage channels. Background Art

[0002] In the field of railway tunnel construction, the leakage of the lining structure poses a severe challenge to the safe operation of trains and significantly shortens the overall service life of tunnel facilities. The traditional drainage plate design generally adopts a flat structure. Although it emphasizes the waterproof effect, it fails to make full use of natural physical mechanisms such as the siphon effect to achieve efficient drainage. Therefore, the convex shell type drainage plate with drainage function is gradually becoming a research and application hotspot in the field of tunnels and underground engineering.

[0003] Chinese Patent CN219034767U discloses a self-adhesive convex shell drainage plate, which is configured with a self-adhesive layer and integrates a raised support structure on its surface. However, these raised parts are of conventional design. During the concrete pouring process of the secondary lining of the tunnel, there is a direct positive correlation between the ability of the drainage plate to resist extrusion deformation and its drainage efficiency. In the actual construction process, the pouring of the secondary lining concrete of the tunnel often easily causes deformation of these raised support structures, thereby weakening its drainage performance. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems raised in the above background art, and then a novel mesh drainage plate with drainage channels is proposed.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A novel mesh drainage plate with drainage channels, including a drainage plate body. The drainage plate body is longitudinally provided with a plurality of longitudinal convex shell drainage channels formed by a linear array of convex shells, and the drainage plate body is transversely provided with a plurality of transverse convex shell drainage channels formed by a linear array of convex shells. The top of the longitudinal convex shell drainage channels is fixedly connected with an adhesive tape through hot melt pressure-sensitive adhesive.

[0007] Further, the convex shell includes a frustum-shaped base, and a plurality of support feet are annularly arranged around the frustum-shaped base.

[0008] Further, there are 5 support feet.

[0009] Further, the arrangement of the convex shells on the drainage plate body is a horizontal and vertical arrangement.

[0010] Further, the widths of both the longitudinal convex shell drainage channels and the transverse convex shell drainage channels are 50 cm.

[0011] Furthermore, welding edges are formed on both sides of the waterproof and drainage board. There are no convex shells inside the welding edges, and the welding edges are flat.

[0012] Furthermore, the longitudinal convex shell drainage channel and the transverse convex shell drainage channel intersect to form a flat area.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model adopts a mesh drainage structure with specific transverse and longitudinal drainage channels, enhancing the compressive strength of the convex shells, optimizing the drainage flow line, expanding the effective area of the drainage channels, ensuring that the waterproof and drainage board can still maintain good waterproof and drainage capabilities in high-pressure surrounding rock tunnels, effectively solving the problems of poor drainage and blockage, and improving the overall waterproof and drainage performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a top view of the convex shell;

[0016] Figure 3 is a left view of the convex shell;

[0017] Figure 4 is a physical diagram of the convex shell;

[0018] Figure 5 is a diagram of the compressive strength test steps of the convex shell

[0019] Figure 6 is a curve diagram of the average stress-displacement change of the specimen

[0020] Figure 7 is a comparison diagram of the stress-displacement curves of displacement control and load control

[0021] Figure 8 is a curve diagram of the stress of the waterproof and drainage board changing with displacement under different loading rates

[0022] Wherein: 1 is the longitudinal convex shell drainage channel, 2 is the transverse convex shell drainage channel, 3 is the bonding band, 100 is the waterproof and drainage board body, 101 is the flat area, 102 is the welding edge, 200 is the convex shell, 201 is the frustum-shaped base, and 202 is the support leg. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. The present utility model will be further described in conjunction with the accompanying drawings and embodiments:

[0024] As shown Figures 1-4 in the figure, a new type of mesh waterproof and drainage board with drainage channels includes a waterproof and drainage board body 100. The material of the waterproof and drainage board body can be PE (polyethylene), and recycled materials should not be used for the raw materials. The appearance color should be the natural color of the raw materials. The waterproof and drainage board body is longitudinally provided with a plurality of longitudinal convex shell drainage channels 1 formed by linear arrays of convex shells 200, and the waterproof and drainage board body is transversely provided with a plurality of transverse convex shell drainage channels 2 formed by linear arrays of convex shells. The top of the longitudinal convex shell drainage channel is fixedly connected with an adhesive tape 3 through hot-melt pressure-sensitive adhesive. Among them, the adhesive tape is also known as "self-adhesive tape" and "velcro", and the surface is provided with small barbs.

[0025] Further, the number of the longitudinal convex shell drainage channels is preferably between two and four.

[0026] Further, the widths of both the longitudinal convex shell drainage channel and the transverse convex shell drainage channel are 50 cm.

[0027] In this embodiment, the layout structure of the waterproof and drainage board is changed, and the fully distributed convex shell points are changed into a mesh drainage structure with three specific drainage channels of 50 cm each in the horizontal and vertical directions. The waterproof and drainage are realized through the mesh structure.

[0028] Further, welding edges 102 are formed on both sides of the waterproof and drainage board. There are no convex shells inside the welding edges, and the welding edges are in a flat plate shape.

[0029] Further, the longitudinal convex shell drainage channel and the transverse convex shell drainage channel intersect to form a flat plate area 101.

[0030] In at least one embodiment, the convex shell includes a frustum-shaped base 201, and a plurality of support feet 202 are annularly arranged around the frustum-shaped base.

[0031] Further, 5 support feet are provided. Adding 5 support feet to the frustum-shaped base can increase the compressive strength of the convex shell body by about 1.5 times, ensuring the ability of the convex shell type waterproof and drainage board to resist the extrusion deformation generated during the concrete pouring of the secondary lining of the tunnel, so that the convex shell can still maintain good waterproof and drainage ability even in high-pressure surrounding rock tunnels. And due to the improvement of the compressive strength, the height of the convex shell can be increased from the previous 0.8 - 1.0 cm to 1.0 - 1.2 cm, making the drainage channel of the waterproof and drainage board wider without affecting the overall strength.

[0032] In at least one embodiment, the arrangement of the convex shells on the waterproof and drainage board body is a horizontal and vertical arrangement. The original plum blossom-shaped arrangement has poor drainage flow lines and is more likely to deposit sediment. Changing to the horizontal and vertical arrangement can expand the drainage while optimizing the drainage flow lines, solving the problem of poor drainage and blockage.

[0033] As Figures 5-8 shown, through experiments, it is proved that the ability of the convex shell type drainage plate to resist extrusion deformation during the concrete pouring process of the secondary lining of the tunnel is positively correlated with its drainage ability. If the compressive strength of the plastic convex shell of the convex shell type drainage plate is high, its extrusion deformation is small, the net height of the drainage channel is large, the effective area of the drainage channel is large, and the equivalent pipe diameter of the water passing capacity is also large, and vice versa. Therefore, by increasing the compressive strength of the convex shell of the convex shell type drainage plate, the effective area of the drainage channel of the drainage plate can be ensured, and thus its water passing capacity can be ensured. Through the structural change of the changed convex shell shape, the compressive strength of the convex shell is enhanced and the water passing area ratio is increased.

[0034] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of protection required by the present utility model. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A novel mesh drainage and waterproof board with a drainage channel, characterized in that, It includes a waterproof and drainage board body. The waterproof and drainage board body is longitudinally provided with a plurality of longitudinal convex shell drainage channels formed by linear arrays of convex shells, and the waterproof and drainage board body is transversely provided with a plurality of transverse convex shell drainage channels formed by linear arrays of convex shells. The top of the longitudinal convex shell drainage channel is fixedly connected with an adhesive tape through hot-melt pressure-sensitive adhesive.

2. The novel mesh drainage and water-proof board with a drainage channel according to claim 1, characterized in that, The convex shell includes a frustum-shaped base, and a plurality of support feet are annularly arrayed around the frustum-shaped base.

3. The novel mesh drainage and water-proof board with a drainage channel according to claim 2, characterized in that, There are 5 support feet.

4. The novel mesh drainage and waterproof board with a drainage channel according to any one of claims 1 to 3, characterized in that The arrangement of the convex shells on the waterproof and drainage board body is a horizontal and vertical arrangement.

5. The novel net-shaped water drainage and prevention plate with a drainage channel according to claim 1, characterized in that, The widths of both the longitudinal convex shell drainage channel and the transverse convex shell drainage channel are 50 cm.

6. The novel mesh drainage and water-proof board with a drainage channel according to claim 1, characterized in that, Welding edges are formed on both sides of the waterproof and drainage board. There are no convex shells inside the welding edges, and the welding edges are flat.

7. The novel mesh drainage and water-proof board having a drainage channel according to claim 1 or 5, characterized in that, The longitudinal convex shell drainage channel and the transverse convex shell drainage channel intersect to form a flat area.

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