A convex shell tunnel drainage plate with a flow guide device

Abstract

The utility model relates to tunnel engineering technical field, more particularly, a kind of convex shell tunnel drainage plate with flow guide device, it include: catchment strip, catchment unit, water barrier, water guide groove, drainage plate and drainage blind pipe, the catchment unit is evenly provided with multiple catchment strips in, the catchment unit is provided with multiple;The water barrier is provided with multiple, the water barrier bisects the catchment unit;The water guide groove is set between adjacent two the catchment unit, the water guide groove is perpendicular to the water barrier setting;The drainage plate surface is provided with the catchment unit, the water barrier with the water guide groove;The drainage blind pipe is set in the side of the drainage plate, the drainage blind pipe is perpendicular to the water guide groove setting, water inlet is provided on the drainage blind pipe.The utility model can quickly lead out hole outside by groundwater through tunnel side ditch, it is not easy to cause siltation in water-rich surrounding rock paragraph, and drainage mode is efficient and fast.

Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering technology, and more specifically, to a convex shell type tunnel drainage board with a flow guiding device. Background Technology

[0002] Currently, in the design and construction of tunnels in my country, the tunnel support structure mostly adopts a composite lining structure, namely an initial support structure and a secondary lining structure. A homogeneous polymer plastic waterproof membrane is installed between the initial support and the secondary lining. Behind the waterproof membrane, circumferential and longitudinal blind pipes are installed, with water inlet holes evenly distributed on them. The circumferential blind pipes are arranged along the circumference of the tunnel, with a spacing of about 10m, and the longitudinal blind pipes are installed along the corners of both sides of the tunnel. Groundwater in the surrounding rock is collected through the drainage blind pipes behind the waterproof membrane and discharged to the drainage ditches on both sides of the tunnel, and finally discharged outside the tunnel.

[0003] When tunnels pass through water-rich strata, especially water-rich sections of karst tunnels, it is necessary to quickly drain groundwater to prevent poor drainage from causing additional water pressure on the tunnel lining, which could lead to deformation or even cracks in the lining. Existing tunnel drainage technologies use blind drainage pipes to collect groundwater and discharge it outside the tunnel. However, when the surrounding rock has a large amount of water, the small orifice diameter of the blind drainage pipes and the long spacing between them in the circumferential direction limit the drainage capacity, making it difficult to quickly drain the groundwater. This can easily lead to groundwater stagnation behind the lining, and in severe cases, blockage of the blind drainage pipes, rendering them ineffective. How to quickly and effectively introduce groundwater from the surrounding rock into longitudinal blind drainage pipes and discharge it outside the tunnel is a problem worthy of further investigation. Utility Model Content

[0004] The purpose of this invention is to provide a convex-shell type tunnel drainage board with a flow guiding device to improve the aforementioned problem. To achieve this purpose, the technical solution adopted by this invention is as follows:

[0005] This application provides a convex shell type tunnel drainage board with a flow guiding device, comprising: water collecting strips, water collecting units, water retaining embankments, water diversion channels, drainage boards, and drainage blind pipes. Multiple water collecting strips are evenly arranged within each water collecting unit, and multiple water collecting units are provided. Multiple water retaining embankments are provided, dividing each water collecting unit equally. Water diversion channels are disposed between two adjacent water collecting units, perpendicular to the water retaining embankments. The drainage board surface is provided with the water collecting units, the water retaining embankments, and the water diversion channels. The drainage blind pipe is disposed on the side of the drainage board, perpendicular to the water diversion channels, and has an inlet hole.

[0006] Preferably, the water collection strip is configured as a convex strip, and the water collection strip is arranged in an arc-shaped staggered pattern along the plane of the drainage plate, with the arc-shaped opening facing the drainage blind pipe.

[0007] Preferably, the drainage board protrudes vertically upward from the bottom surface to form the water-blocking embankment, the water-blocking embankment is arc-shaped along the plane of the drainage board, the opening of the arc faces the drainage blind pipe, and the chord length corresponding to the arc-shaped water-blocking embankment is greater than or equal to the length of the water collection unit.

[0008] Preferably, a nail is provided on the concave surface of the water-blocking embankment, and the drainage board is fixed to the side of the tunnel surrounding rock by means of the water-blocking embankment and the nail.

[0009] Optionally, a soft rubber strip is provided on the concave surface of the water-retaining embankment. The soft rubber strip is positioned between the nail and the water-retaining embankment, and the nail penetrates the soft rubber strip and the water-retaining embankment and is driven into the surrounding rock of the tunnel.

[0010] Optionally, a washer is provided between the soft rubber strip and the nail.

[0011] Preferably, multiple water inlets are provided, and the multiple water inlets are evenly distributed.

[0012] Preferably, the water inlet is oriented toward the water inlet channel, so that water flows from the water inlet channel to the water inlet.

[0013] Preferably, there are multiple blind drain pipes, which are connected by connectors, and the water inlet is located on the connector.

[0014] Optionally, the connector is configured as a socket-type direct connector.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention features several identical water collection units on the surface of a drainage board. Each water collection unit contains evenly distributed raised water collection strips and water-blocking embankments. The water collection strips are arranged in an arc-shaped staggered pattern, and the arc-shaped water-blocking embankments divide the water collection unit into equal parts. A water diversion channel is provided between adjacent water collection units, and a blind drainage pipe is provided on the side of the drainage board. The device uses the water collection units to collect groundwater and divert it to the water diversion channel. The groundwater flows through the water diversion channel to the blind drainage pipe and is finally discharged through the drainage ditches on both sides of the tunnel.

[0017] Meanwhile, fixing the drainage board with soft rubber strips and nails avoids the problem of easy weld penetration that occurs with traditional hot-melt welding, making the fixation of the drainage board more effective. In water-rich surrounding rock sections, the device allows groundwater to be quickly discharged outside the tunnel through the tunnel side ditch, reducing the risk of siltation and making the drainage method efficient and fast.

[0018] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front view of a convex shell type tunnel drainage board with a flow guiding device as described in an embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of a convex shell type tunnel drainage board with a flow guiding device as described in an embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of a blind drain pipe in a convex shell type tunnel drainage board with a flow guiding device, as described in an embodiment of this utility model.

[0023] Figure 4 This is a schematic diagram of the water inlet hole in a convex shell type tunnel drainage plate with a flow guiding device as described in an embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the fixing method of a convex shell type tunnel drainage board with a flow guiding device as described in an embodiment of this utility model;

[0025] Figure 6 This is a schematic plan view of the fixing structure of a convex shell type tunnel drainage board with a flow guiding device as described in an embodiment of this utility model.

[0026] The markings in the diagram are: 1. Water collection unit; 101. Water collection strip; 2. Water barrier; 3. Water inlet channel; 4. Drainage board; 5. Drainage blind pipe; 6. Water inlet hole; 7. Connector; 8. Nail; 9. Soft rubber strip; 10. Washer. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0028] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Example 1:

[0030] like Figure 1 and Figure 2 As shown, this embodiment provides a convex shell type tunnel drainage board with a flow guiding device, including: water collecting strips 101, water collecting units 1, water retaining embankments 2, water diversion channels 3, drainage boards 4, and drainage blind pipes 5. Multiple water collecting strips 101 are evenly arranged within the water collecting units 1, and multiple water collecting units 1 are provided. Multiple water retaining embankments 2 are provided, and the water retaining embankments 2 divide the water collecting units 1 equally. The water diversion channels 3 are arranged between two adjacent water collecting units 1, and the water diversion channels 3 are perpendicular to the water retaining embankments 2. The surface of the drainage board 4 is provided with the water collecting units 1, the water retaining embankments 2, and the water diversion channels 3. The drainage blind pipes 5 are arranged on the side of the drainage board 4, and the drainage blind pipes 5 are perpendicular to the water diversion channels 3. The drainage blind pipes 5 are provided with water inlet holes 6.

[0031] After the initial support of the tunnel is completed, the drainage board 4 is laid on a trolley so that the water collection unit 1 faces the tunnel surrounding rock side. The drainage blind pipe 5 is installed at the tunnel corner. After the tunnel side ditch is completed, the drainage blind pipe 5 is introduced into the tunnel side ditch to form a complete groundwater drainage channel.

[0032] This utility model provides several water collection units 1 of the same size on the surface of the drainage board 4. Each water collection unit 1 is uniformly provided with a raised water collection strip 101 and a water-blocking ridge 2. The water collection strip 101 is evenly arranged, and the water-blocking ridge 2 divides the water collection unit 1 equally. A water diversion channel 3 is provided between adjacent water collection units 1. A drainage blind pipe 5 is provided on the side of the drainage board 4. The device uses the water collection units 1 to collect groundwater and divert it to the water diversion channel 3. The groundwater flows through the water diversion channel 3 to the drainage blind pipe 5 and is finally discharged through the drainage ditches on both sides of the tunnel.

[0033] Example 2:

[0034] This embodiment is a further optimization based on Embodiment 1, specifically as follows: Figure 1 and Figure 2 As shown, the water collection strip 101 is configured as a convex strip, and the water collection strip 101 is arranged in an arc shape along the plane direction of the drainage plate 4, with the arc opening facing the drainage blind pipe 5; the drainage plate 4 protrudes vertically upward from the bottom surface to form the water-blocking ridge 2, and the water-blocking ridge 2 is configured as an arc along the plane direction of the drainage plate 4, with the arc opening facing the drainage blind pipe 5, and the chord length corresponding to the arc-shaped water-blocking ridge 2 is greater than or equal to the length of the water collection unit 1.

[0035] The raised and arc-shaped water collection strip 101 and the water-blocking embankment 2 provide a certain buffer for the discharge of groundwater, ensuring that groundwater can fall into the drainage blind pipe 5 successively and evenly, and dispersing the impact of large-volume groundwater discharge on the drainage blind pipe 5.

[0036] Example 3:

[0037] This embodiment is a further optimization based on embodiment 2, specifically as follows: Figure 2 , Figure 5 and Figure 6 As shown, a nail 8 is provided on the concave surface of the water-blocking embankment 2, and the drainage board 4 is fixed to the tunnel surrounding rock side by the water-blocking embankment 2 and the nail 8; a soft rubber strip 9 is provided on the concave surface of the water-blocking embankment 2, and the soft rubber strip 9 is placed between the nail 8 and the water-blocking embankment 2, and the nail 8 penetrates the soft rubber strip 9 and the water-blocking embankment 2 and is driven into the tunnel surrounding rock side.

[0038] like Figure 5 and Figure 6 As shown, a washer 10 is provided between the soft rubber strip 9 and the nail 8. The soft rubber strip 9 is made of soft plastic. The drainage board 4 is fixed by the soft rubber strip 9 and the nail 8, which can avoid the problem of easy penetration of the drainage board 4 during traditional hot melt welding, and make the fixing of the drainage board 4 more direct and effective.

[0039] After the initial support of the tunnel is completed, the drainage board 4 is laid on a trolley so that the water collection unit 1 faces the tunnel surrounding rock side. The soft rubber strip 9 is pressed into the concave surface of the water-blocking embankment 2. The washer 10 is fitted on the nail 8 and the nail 8 is driven into the surrounding rock to fix the drainage board 4.

[0040] Example 4:

[0041] This embodiment is a further optimization based on Embodiment 1, specifically as follows: Figure 1 and Figure 4 As shown, multiple water inlets 6 are provided, and the multiple water inlets 6 are evenly distributed.

[0042] like Figure 1 and Figure 4 As shown, the water inlet 6 is set in the shape of a strip and the opening diameter is larger than that of the water diversion channel 3. The multiple water inlets 6 opened on the drainage blind pipe 5 effectively improve the drainage capacity of the drainage device, which can quickly discharge the groundwater in the surrounding rock out of the tunnel and reduce the probability of groundwater blockage behind the lining.

[0043] Example 5:

[0044] This embodiment is a further optimization based on embodiment 4, specifically as follows: Figure 1 As shown, the water inlet 6 is positioned facing the water inlet trough 3, so that water flows from the water inlet trough 3 to the water inlet 6.

[0045] When installing the drainage blind pipe 5, the water inlet 6 should be positioned facing the water diversion channel 3 and aligned with the water diversion channel 3 to ensure the smooth discharge of groundwater.

[0046] Example 6:

[0047] This embodiment is a further optimization based on Embodiment 1, specifically as follows: Figure 1 and Figure 3 As shown, there are multiple drainage blind pipes 5, which are connected by connectors 7, and the water inlet 6 is provided on the connectors 7.

[0048] The connector 7 is a socket-type direct connector, and the multiple drainage blind pipes 5 can distribute the load, so that the device can still ensure normal drainage in water-rich surrounding rock sections.

[0049] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0050] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0051] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0052] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A convex-shell type tunnel drainage board with a flow guiding device, characterized in that, include: Water collection strip (101); A water collection unit (1) is provided with a plurality of water collection strips (101) evenly arranged inside the water collection unit (1); A water-blocking embankment (2) is provided in multiple ways, and the water-blocking embankment (2) divides the water collection unit (1) into equal parts; Water intake channel (3), the water intake channel (3) is set between two adjacent water collection units (1), the water intake channel (3) is set perpendicular to the water-blocking embankment (2); Drainage board (4), the surface of which is provided with the water collection unit (1), the water barrier (2) and the water diversion channel (3); A drainage blind pipe (5) is provided on the side of the drainage plate (4). The drainage blind pipe (5) is perpendicular to the water inlet trough (3). A water inlet hole (6) is provided on the drainage blind pipe (5).

2. The convex shell type tunnel drainage board with a flow guiding device according to claim 1, characterized in that: The water collection strip (101) is configured as a convex strip, and the water collection strip (101) is arranged in an arc shape along the plane direction of the drainage plate (4), with the arc opening facing the drainage blind pipe (5).

3. The convex shell type tunnel drainage board with a flow guiding device according to claim 2, characterized in that: The drainage board (4) protrudes vertically upward from the bottom to form the water-blocking embankment (2). The water-blocking embankment (2) is set in an arc shape along the plane direction of the drainage board (4). The opening of the arc faces the drainage blind pipe (5). The chord length corresponding to the water-blocking embankment (2) is greater than or equal to the length of the water collection unit (1).

4. The convex shell type tunnel drainage board with a flow guiding device according to claim 3, characterized in that: A nail (8) is provided on the concave surface of the water-blocking embankment (2), and the drainage board (4) is fixed to the side of the tunnel surrounding rock by means of the water-blocking embankment (2) and the nail (8).

5. The convex shell type tunnel drainage board with a flow guiding device according to claim 4, characterized in that: A soft rubber strip (9) is provided on the concave surface of the water-blocking embankment (2). The soft rubber strip (9) is located between the nail (8) and the water-blocking embankment (2). The nail (8) penetrates the soft rubber strip (9) and the water-blocking embankment (2) and is driven into the surrounding rock of the tunnel.

6. The convex shell type tunnel drainage board with a flow guiding device according to claim 5, characterized in that: A washer (10) is provided between the soft rubber strip (9) and the nail (8).

7. The convex shell type tunnel drainage board with a flow guiding device according to claim 1, characterized in that: The water inlet (6) is provided in multiple ways, and the multiple water inlet (6) are evenly distributed.

8. The convex shell type tunnel drainage board with a flow guiding device according to claim 7, characterized in that: The water inlet (6) is positioned facing the water inlet channel (3) so that water flows from the water inlet channel (3) to the water inlet (6).

9. The convex shell type tunnel drainage board with a flow guiding device according to claim 1, characterized in that: The drainage blind pipe (5) is provided in multiple parts, and the multiple drainage blind pipes (5) are connected by connectors (7). The water inlet (6) is provided on the connector (7).

10. The convex shell type tunnel drainage board with a flow guiding device according to claim 9, characterized in that: The connector (7) is configured as a socket-type direct connector.

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