Tunnel cracking water seepage flow guide structure

Abstract

The utility model discloses a tunnel cracking water seepage flow guide structure, and belongs to the technical field of tunnels, the tunnel cracking water seepage flow guide structure is used for a tunnel, a water seepage opening is formed in the side wall of the tunnel, and a water drainage opening and at least one confluence channel communicated with the water drainage opening are formed in the bottom of the tunnel. A flow guide groove is formed in the position, opposite to the water seepage opening, of the tunnel, a water guide pipe is embedded in the flow guide groove, an opening of the water guide pipe is opposite to the water seepage opening, and the water guide pipe extends to an inlet of the confluence channel along the side wall of the tunnel from top to bottom. According to the tunnel cracking water seepage flow guide structure, efficient water guide and drainage can be formed through mutual cooperation of the water seepage openings, the flow guide grooves, the water guide pipes, the confluence channels and the water drainage openings, so that the waterproof performance of a tunnel is improved, and meanwhile the service life of the tunnel is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of water diversion and waterproofing structure technology, and in particular to a water diversion structure for tunnel cracking and seepage. Background Technology

[0002] Underground tunnel engineering plays a vital role in modern transportation and infrastructure construction. However, after years of operation, the surrounding soil and rock, groundwater, external loads, and ground stress can cause cavities to develop into localized leaks, cracks, and fissures. Water leakage not only reduces the load-bearing capacity of the lining structure but also leads to equipment failure, increased maintenance costs, and even threatens traffic safety.

[0003] Grouting is a common method for waterproofing tunnels. It involves injecting grout into groundwater, causing the groundwater to solidify and preventing seepage into the tunnel. However, grouting has several drawbacks in practical applications, such as uncontrollable grouting range, uneven grout diffusion, and difficulty in controlling grouting pressure, which may prevent complete resolution of leakage problems. In particular, when the arch and sidewalls exhibit single-point linear, stream, or jet-like flows with large volumes of water, grouting, plastering, and caulking are extremely ineffective in blocking water. Furthermore, existing technologies often use waterstops as waterproofing components for tunnel lining cracks. This can be achieved by installing waterstops within drainage joints, as well as by installing transverse and central drainage pipes. However, this structure is extremely complex, difficult to construct, and requires ensuring the central and transverse drainage pipes are connected, with the transverse drainage pipes located at the lowest point. Moreover, drainage waterstops consist of multiple components, including drainage boxes, drainage channels, snap-fit ​​sections, flanges, bolts, and sealing bodies, resulting in complex construction processes and high costs. Therefore, researching an effective and reliable structure for treating cracks and water leakage in existing tunnel linings is of great practical significance. Utility Model Content

[0004] The main purpose of this utility model is to provide a tunnel crack seepage diversion structure to solve the problems of complex process and high cost of existing water diversion and seepage structures.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] According to the present application, a tunnel crack seepage diversion structure is used in a tunnel. The tunnel sidewall includes a seepage outlet, the bottom of the tunnel is provided with a drainage outlet and at least one confluence channel communicating with the drainage outlet, a diversion groove is provided on the tunnel at a position opposite to the seepage outlet, a water guide pipe is embedded in the diversion groove, the opening of the water guide pipe is opposite to the seepage outlet, and the water guide pipe extends along the tunnel sidewall from top to bottom to the entrance of the confluence channel.

[0007] According to the tunnel crack seepage diversion structure of this application, the diversion channel is filled with an anti-seepage layer, and the anti-seepage layer is located on the side of the water pipe away from the seepage outlet.

[0008] Optionally, the seepage-proof layer includes a portion protruding from the guide channel, the circumferential edge of which overlaps the tunnel sidewall.

[0009] Optionally, the anti-leakage layer comprises epoxy mortar.

[0010] According to the tunnel crack seepage diversion structure of this application, along the depth direction of the diversion channel, the width of the diversion channel gradually increases in the direction of gradually approaching the seepage outlet.

[0011] According to the tunnel crack seepage diversion structure of this application, the cross-sectional shape of the water diversion pipe is semi-circular, and the opening of the semi-circular pipe faces the seepage outlet.

[0012] Optionally, the water conduit includes a PVC pipe.

[0013] Optionally, multiple nails are provided on both sides of the water guide pipe, and a fixing wire is provided on the outside of the water guide pipe, with the two ends of the fixing wire respectively wrapped around the nails on both sides of the water guide pipe.

[0014] According to the tunnel crack seepage diversion structure of this application, the water diversion pipe includes a first sub-segment and two second sub-segments arranged in a Y-shape. The two second sub-segments are respectively arranged opposite to the seepage outlet, and one end of the two second sub-segments converges and communicates with the first sub-segment.

[0015] The technical solution provided by the utility model embodiments has the following advantages compared with the prior art:

[0016] The tunnel crack seepage diversion structure provided in this embodiment of the utility model has a water guide pipe with its opening opposite to the seepage outlet, extending downwards to the inlet of the confluence channel. This effectively guides the water seeping from the seepage outlet into the drainage system. This design ensures rapid drainage of seepage, reduces water accumulation and pressure within the tunnel, and prevents further structural damage. The diversion channel, located on the tunnel opposite the seepage outlet, is used to embed the water guide pipe. The presence of the diversion channel ensures the stability and sealing of the water guide pipe, preventing seepage from spreading on the tunnel sidewalls and improving drainage efficiency. The confluence channel, connecting to the drainage outlet, is the key component of the entire diversion system. The tunnel has several sections, including a drainage channel and a drainage outlet. The drainage outlet is located at the bottom of the tunnel and directly connects to the confluence channel. This allows for the proper placement of the drainage outlet to prevent water accumulation from deteriorating the tunnel's internal environment and damaging equipment. In summary, the tunnel crack seepage diversion structure utilizes the combined effect of the seepage outlet, drainage channel, drainage pipe, confluence channel, and drainage outlet to create efficient water diversion and drainage, thereby improving the tunnel's waterproofing performance and extending its service life. Attached Figure Description

[0017] Figure 1 A front view of a tunnel crack seepage diversion structure provided in an embodiment of this utility model;

[0018] Figure 2 for Figure 1 Cross-sectional view at point AA;

[0019] Figure 3 for Figure 1 Cross-sectional view at point BB;

[0020] Labeling explanation: Tunnel 10, seepage outlet 11, drainage outlet 12, confluence channel 13, diversion channel 20, water pipe 21, first sub-section 211, second sub-section 212, seepage prevention layer 22. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] like Figures 1-3As shown, the tunnel crack seepage diversion structure according to the embodiment of this application is used in a tunnel 10. The tunnel 10 includes a seepage port 11 inside the side wall. The bottom of the tunnel 10 is provided with a drainage port 12 and at least one confluence channel 13 communicating with the drainage port 12. A diversion groove 20 is provided on the tunnel 10 at a position opposite to the seepage port 11. A water guide pipe 21 is embedded in the diversion groove 20. The opening of the water guide pipe 21 is opposite to the seepage port 11. The water guide pipe 21 extends along the side wall of the tunnel 10 from top to bottom to the entrance of the confluence channel 13.

[0023] According to the tunnel crack seepage diversion structure of this application embodiment, the opening of the water guide pipe 21 is opposite to the seepage outlet 11, which can ensure that the seepage water flows smoothly into the water guide pipe 21 and avoids the seepage water spreading everywhere. It extends from top to bottom to the inlet of the confluence channel 13, thereby effectively guiding the water seeping from the seepage outlet into the drainage system. This design can ensure that the seepage water is discharged quickly, reduce water accumulation and water pressure in the tunnel 10, and prevent further structural damage. The diversion groove 20 is located on the tunnel 10 opposite to the seepage outlet 11 and is used to embed the water guide pipe 21. The existence of the diversion groove 20 ensures the stability and sealing of the water guide pipe 21, prevents the seepage water from spreading on the side wall of the tunnel 10, and improves the drainage efficiency. The confluence channel 13 connects to the drainage outlet 12 and is the entire diversion system. The key component is used to collect and transport seepage water from the water guide pipe 21, ensuring that the seepage water is quickly and safely discharged to the outside of the tunnel 10, preventing secondary leakage. The drain outlet 12 is located at the bottom of the tunnel 10 and is directly connected to the confluence channel 13. This allows for the reasonable placement of the drain outlet 12, preventing the deterioration of the internal environment of the tunnel 10 and damage to equipment due to water accumulation. In summary, the tunnel crack seepage diversion structure can utilize the cooperation of the seepage outlet 11, the diversion channel 20, the water guide pipe 21, the confluence channel 13, and the drain outlet 12 to form an efficient water diversion and drainage system, reducing water accumulation and slippery conditions inside the tunnel 10, thereby improving the waterproof performance of the tunnel 10 and extending its service life.

[0024] like Figures 1-3 As shown, in the above embodiments, the number of guide channels 20 is one or more, the number of water pipes 21 is one or more, and the number of confluence channels 13 is one or more, with the number of guide channels 20, water pipes 21 and confluence channels 13 corresponding one-to-one.

[0025] like Figure 2 As shown, in the tunnel crack seepage diversion structure according to the embodiment of this application, the diversion channel 20 is filled with an anti-seepage layer 22, and the anti-seepage layer 22 is located on the side of the water pipe 21 away from the seepage outlet 11.

[0026] Specifically, the seepage-proof layer 22 is located on the side of the water pipe 21 away from the seepage outlet 11, which can effectively prevent water leakage and prevent moisture from seeping into the interior of the tunnel 10, avoiding the deterioration of materials such as concrete due to water erosion, helping to maintain the integrity and stability of the tunnel 10 structure, and extending its service life. In a specific embodiment, the seepage-proof layer 22 is epoxy mortar.

[0027] like Figure 2 As shown, in some embodiments, the leak-proof layer 22 includes a portion protruding from the guide channel 20, the circumferential edge of which overlaps the sidewall of the tunnel 10.

[0028] In detail, the protruding portion of the anti-seepage layer 22 can better cover the edge of the diversion channel 20, ensuring there are no gaps or holes, thereby preventing water from seeping into the interior of the tunnel 10 through these locations. At the same time, the protruding portion of the anti-seepage layer 22 increases the contact area with the sidewall of the tunnel 10, improving the overall structural stability and durability of the tunnel 10, reducing loosening or detachment caused by vibration or pressure changes. By filling the diversion channel 20 with the anti-seepage layer 22, the water pipe 21 can be fixed and seepage water can be guided, while maintaining the integrity of the appearance.

[0029] In some embodiments, the waterproof layer 22 comprises epoxy mortar.

[0030] like Figure 2 As shown, in the tunnel crack seepage diversion structure according to the embodiment of this application, the width of the diversion channel 20 gradually increases in the direction of gradually approaching the seepage outlet 11 along the depth direction of the diversion channel 20.

[0031] In the above embodiment, the width of the diversion channel 20 gradually increases towards the seepage outlet 11, that is, the cross-sectional shape of the diversion channel 20 in the depth direction is a trapezoid with a wider inner side and a narrower outer side. This helps to enhance the structural stability of the tunnel 10, resist external forces, and facilitate construction. It also facilitates the installation and fixation of the water pipe 21, while increasing the contact area between the anti-seepage layer 22 and the diversion channel 20, improving the structural stability of the anti-seepage layer 22, and preventing the anti-seepage layer 22 from falling off.

[0032] like Figure 2 As shown, in the tunnel crack seepage diversion structure according to the embodiment of this application, the cross-sectional shape of the water pipe 21 is semi-circular, and the semi-circular opening faces the seepage port 11.

[0033] In detail, the cross-sectional shape of the water pipe 21 perpendicular to the axis is semi-circular. This design allows the water pipe 21 to provide a larger inflow area, making it easier for the water pipe 21 to receive water from the longer seepage port 11, improving water collection and drainage efficiency, and ensuring the dryness of the tunnel 10 interior.

[0034] In some embodiments, the water pipe 21 includes a PVC pipe.

[0035] In some embodiments, multiple nails are provided on both sides of the water pipe 21, and a fixing wire is provided on the outside of the water pipe 21, with the two ends of the fixing wire wrapped around the nails on both sides of the water pipe 21 respectively.

[0036] Specifically, by combining nails and fixing wires, the water pipe 21 can be effectively fixed in the flow channel 20, preventing the water pipe 21 from shifting or falling off due to water pressure or other external forces. At the same time, the fixed water pipe 21 is more stable and less prone to damage, and can ensure that the water flows along the designed path, avoiding the water flow from deviating from the predetermined path, thereby improving drainage efficiency.

[0037] like Figure 3 As shown, according to the tunnel crack seepage diversion structure of this application embodiment, the water diversion pipe 21 includes a first sub-segment 211 arranged in a Y shape and two second sub-segments 212. The two second sub-segments 212 are respectively arranged opposite to the seepage port 11, and one end of the two second sub-segments 212 converges and communicates with the first sub-segment 211.

[0038] In detail, the water conduit 21 includes a Y-shaped first segment 211 and two second segments 212, which are respectively arranged opposite to the seepage outlet 11. This can effectively guide and converge the cracks in two different locations into the first segment 211, thereby reducing costs and lining damage.

[0039] In one specific embodiment, the construction method is as follows:

[0040] (1) Location: Use ground-penetrating radar or ultrasonic detection equipment to determine the location of seepage outlet 11. The shape of seepage outlet 11 includes water outlet and cracks, etc. The diversion channel 20 should be directly opposite seepage outlet 11. Try to pass through as many seepage outlets 11 as possible to increase the relative area with seepage outlet 11, so as to ensure that more leakage can be effectively diverted.

[0041] (2) Processing of the diversion channel 20: The diversion channel 20 is chiseled out using tools such as a pneumatic hammer or electric hammer, ensuring that the channel wall is flat and free of loose concrete blocks. During the processing of the diversion channel 20, secondary damage to the lining structure should be avoided. Furthermore, an inverted T-shaped structure is adopted for the diversion channel 20, meaning that along the depth direction of the diversion channel 20, the width gradually decreases away from the seepage outlet 11. The inverted T-shape effectively prevents the epoxy mortar (anti-seepage layer 22) from falling off after molding and reduces the repair area on the lining surface. Afterwards, the channel body is rinsed with a high-pressure water gun, with the pressure of the high-pressure water controlled between 10-15 MPa, to remove loose debris and dust from the diversion channel 20.

[0042] (3) Install water guide pipe 21: Select a semi-circular PVC pipe with a suitable diameter for water guide pipe 21. Generally, the diameter is 50-100mm. Select the appropriate pipe diameter according to the flow rate and pressure of the leaking water. Use nails and thin iron wire (fixing wire) to fix the PVC pipe in the guide groove 20 to ensure that the PVC pipe is firm and not loose.

[0043] (4) Filling the anti-seepage layer 22: The epoxy mortar should be mixed and used immediately, and the operation time should not exceed 3 minutes. After mixing the dry material evenly, add water and mix before applying. Fill the prepared epoxy mortar into the trench and compact it with a scraper or trowel to ensure that the gap between the PVC pipe and the trench wall is completely filled. Epoxy mortar has stable chemical properties and excellent anti-seepage, anti-freeze, salt resistance, alkali resistance, and weak acid corrosion resistance. It can maintain a stable state in various harsh environments. In addition, it can be tightly bonded to a variety of substrates and can achieve a stable connection regardless of the complexity of the structure. It can effectively enhance the durability and crack resistance of the structure and reduce the generation of cracks. During the filling process, epoxy mortar should be prevented from entering the PVC pipe.

[0044] (5) Sealing the groove: After 24 hours, use epoxy mortar to smooth the groove opening of the guide groove 20 to ensure that the surface is smooth and without obvious bumps.

[0045] The specific embodiments of the utility model have been described in detail above, but they are only examples, and the utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications or substitutions to the utility model are also within the scope of the utility model. Therefore, all equivalent transformations, modifications, and improvements made without departing from the spirit and principles of the utility model should be covered within the scope of the utility model.

Claims

1. A tunnel crack seepage diversion structure, characterized in that, For use in tunnels, the tunnel sidewalls include seepage inlets, the tunnel bottom has a drainage outlet and at least one confluence channel communicating with the drainage outlet, a guide channel is provided on the tunnel at a position opposite to the seepage inlet, a water guide pipe is embedded in the guide channel, the opening of the water guide pipe is opposite to the seepage inlet, and the water guide pipe extends along the tunnel sidewall from top to bottom to the entrance of the confluence channel.

2. The tunnel cracking seepage diversion structure according to claim 1, characterized in that, The guide channel is filled with an anti-leakage layer, which is located on the side of the water guide pipe away from the seepage outlet.

3. The tunnel cracking seepage diversion structure according to claim 2, characterized in that, The seepage-proof layer includes a portion protruding from the flow channel, the circumferential edge of which overlaps the tunnel sidewall.

4. The tunnel cracking seepage diversion structure according to claim 3, characterized in that, The seepage-proof layer includes epoxy mortar.

5. The tunnel cracking seepage diversion structure according to any one of claims 1-4, characterized in that, Along the depth direction of the guide channel, the width of the guide channel gradually increases as it approaches the seepage outlet.

6. The tunnel cracking seepage diversion structure according to claim 1, characterized in that, The cross-sectional shape of the water guide pipe is semi-circular, and the opening of the semi-circular pipe faces the seepage port.

7. The tunnel cracking seepage diversion structure according to claim 6, characterized in that, The water pipe includes a PVC pipe.

8. The tunnel cracking seepage diversion structure according to claim 6, characterized in that, Multiple nails are provided on both sides of the water guide pipe, and a fixing wire is provided on the outside of the water guide pipe. The two ends of the fixing wire are respectively wrapped around the nails on both sides of the water guide pipe.

9. The tunnel cracking seepage diversion structure according to claim 1, characterized in that, The water guide pipe includes a first sub-segment and two second sub-segments arranged in a Y-shape. The two second sub-segments are respectively arranged opposite to the seepage outlet, and one end of the two second sub-segments converges and communicates with the first sub-segment.

Images