Karst tunnel drainage structure

Abstract

The utility model relates to the field of tunnel engineering construction, and discloses a karst tunnel drainage structure which comprises a wall body, a containing cavity is formed in the wall body, locking bolts are in threaded connection with the interiors of the containing cavity, filtering frames are in threaded connection with the exteriors of the locking bolts, the filtering frames are arranged in the containing cavity, and the filtering frames are arranged in the containing cavity. Limiting telescopic rods are fixedly connected to the tops of the filtering frames, springs are arranged outside the limiting telescopic rods, the top ends of the limiting telescopic rods are fixedly connected to the bottoms of fixing plates, springs are fixedly connected to the bottoms of the fixing plates, and the bottom ends of the springs are fixedly connected to the tops of the filtering frames; and a filtering assembly is arranged at the top of the filtering frame. According to the utility model, through the arrangement of the filter frame, impurities in water are filtered, so that the overall drainage effect is improved, and through the cooperation of the spring and the limiting telescopic rod, the bearing capacity and durability of the grating plate are improved.

Description

Technical Field

[0001] The utility model relates to the field of tunnel engineering construction, in particular to a karst tunnel drainage structure. Background Art

[0002] When constructing tunnels in karst areas, the complex geological conditions, especially the abundant karst water, pose great safety risks to tunnel construction and operation.

[0003] In order to solve the drainage problem of karst tunnels, drainage is usually carried out by installing drainage pipes and adding drainage ditches. However, these traditional methods are often limited in effect when facing large-scale karst water, and are prone to blockage and damage during long-term operation.

[0004] When facing karst water, existing tunnel drainage structures often have problems such as poor drainage and fragile structure, which seriously affects the stability and service life of the tunnel. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a karst tunnel drainage structure, which aims to improve the problems of poor drainage and fragile structure in the existing tunnel drainage structure when facing karst water, which seriously affects the stability and service life of the tunnel.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a karst tunnel drainage structure, including a wall, a placement cavity is opened inside the wall, the interior of the placement cavity is threadedly connected with a locking bolt, the exterior of the locking bolt is threadedly connected with a filter frame, the filter frame is arranged inside the placement cavity, the top of the filter frame is fixedly connected with a limiting telescopic rod, the exterior of the limiting telescopic rod is provided with a spring, the top of the limiting telescopic rod is fixedly connected to the bottom of a fixed plate, the bottom of the fixed plate is fixedly connected with a spring, the bottom end of the spring is fixedly connected to the top of the filter frame, and the top of the filter frame is provided with a filter assembly.

[0007] As a further description of the above technical solution: a filter frame is placed inside the placement cavity to filter impurities. After the filter frame is installed, a preliminary filtration is performed by installing a grille plate. The grille plate, in cooperation with the spring and the limiting telescopic rod, plays a certain buffering and shock-absorbing role, thereby improving its bearing capacity.

[0008] The filter assembly includes a grid plate, which is arranged on the top of the fixed plate. The inside of the grid plate is threadedly connected with a fixing bolt, the outside of the fixing bolt is threadedly connected with the fixing plate, and baffles are fixedly connected on both sides of the inside of the filter frame.

[0009] As a further description of the above technical solution: the baffle is used to place and install the rectangular frame, the grid plate is used to preliminarily filter impurities, and the grid plate is fixed to the fixing plate by fixing bolts.

[0010] A rectangular frame is arranged on the top of the baffle, and a filter is fixedly connected inside the rectangular frame.

[0011] As a further description of the above technical solution: the rectangular frame and the filter are used to filter larger impurities.

[0012] An arc-shaped filter plate is fixedly connected to the inner bottom of the filter frame, and filter holes are provided inside the arc-shaped filter plate.

[0013] As a further description of the above technical solution: the arc-shaped filter plate and the filter holes are used to filter smaller impurities.

[0014] A drainage ditch is provided inside the wall, and the drainage ditch is communicated with the placement cavity.

[0015] As a further description of the above technical solution: a filter frame is arranged inside the placement cavity, and the water filtered by the filter frame flows into the drainage ditch.

[0016] The bottom of the drainage ditch is provided with a drainage hole, and the bottom end of the drainage hole is provided with a drainage pipe.

[0017] As a further description of the above technical solution: water flows into the drain pipe through the drain hole, and the drain hole plays a role of diversion.

[0018] The drainage pipe is arranged inside the wall.

[0019] As a further description of the above technical solution: the setting of the drainage pipe improves the drainage effect.

[0020] Emergency drainage outlets are provided on both sides of the drainage ditch.

[0021] As a further description of the above technical solution: the setting of the emergency drain outlet enhances the tunnel's ability to cope with emergencies and improves overall safety.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, when the grille plate is stepped on, the spring can buffer and reduce the shock of the grille plate under the limit of the telescopic rod of the limit column, so as to avoid the grille plate from being deformed or broken due to being stepped on for a long time, thereby improving the bearing capacity and durability of the grille plate and extending its service life.

[0024] 2. In the utility model, the rectangular frame and the filter screen arranged inside the filter frame can prevent larger impurities from entering the interior of the drainage ditch. The rectangular frame is detachable, so it is convenient to disassemble and clean the impurities. The arc filter plate and the filter holes are arranged to filter smaller impurities, thereby improving the overall drainage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional schematic diagram of a karst tunnel drainage structure proposed by the utility model;

[0026] Figure 2 A schematic diagram of the wall structure of a karst tunnel drainage structure proposed by the utility model;

[0027] Figure 3 A partial structural schematic diagram of a karst tunnel drainage structure proposed by the utility model;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Wall; 2. Drain ditch; 3. Drain hole; 4. Drain pipe; 5. Emergency drain outlet; 6. Placement cavity; 7. Filter frame; 8. Grille plate; 9. Fixing bolt; 10. Fixing plate; 11. Spring; 12. Limit telescopic rod; 13. Locking bolt; 14. Baffle; 15. Rectangular frame; 16. Filter screen; 17. Arc filter plate; 18. Filter hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 2 , Figure 3 and Figure 4The utility model provides an embodiment: a karst tunnel drainage structure, including a wall 1, a placement cavity 6 is opened inside the wall 1, the interior of the placement cavity 6 is threadedly connected with a locking bolt 13, the outside of the locking bolt 13 is threadedly connected with a filter frame 7, the filter frame 7 is arranged inside the placement cavity 6, the top of the filter frame 7 is fixedly connected with a limited telescopic rod 12, the outside of the limited telescopic rod 12 is provided with a spring 11, the top of the limited telescopic rod 12 is fixedly connected to the bottom of a fixed plate 10, the bottom of the fixed plate 10 is fixedly connected with a spring 11, the bottom end of the spring 11 is fixedly connected to the top of the filter frame 7, the top of the filter frame 7 is provided with a filter assembly, the filter assembly includes a grille plate 8, the grille plate 8 is arranged on the top of the fixed plate 10, the interior of the grille plate 8 is threadedly connected with a fixing bolt 9, the outside of the fixing bolt 9 is threadedly connected with the fixed plate 10, and baffles 14 are fixedly connected on both sides of the interior of the filter frame 7.

[0033] The interior of the placement cavity 6 is used to place and install the filter frame 7. The limiting telescopic rod 12 cooperates with the spring 11 to buffer and reduce shock on the grille plate 8. The fixed plate 10 is connected to the grille plate 8 through the fixing bolt 9. The limiting telescopic rod 12 is fixedly connected to the fixing plate 10. The locking bolt 13 is used to connect the filter frame 7 to the wall 1.

[0034] Reference Figure 1 and Figure 2 A rectangular frame 15 is provided on the top of the baffle 14, a filter screen 16 is fixedly connected inside the rectangular frame 15, an arc-shaped filter plate 17 is fixedly connected to the inner bottom of the filter frame 7, filter holes 18 are provided inside the arc-shaped filter plate 17, a drainage ditch 2 is provided inside the wall 1, and the drainage ditch 2 is communicated with the placement cavity 6.

[0035] The baffle 14 is used to place and install the rectangular frame 15, the filter screen 16 inside the rectangular frame 15 is used to filter larger impurities, the arc filter plate 17 and the filter holes 18 are used to filter smaller impurities, and the drainage ditch 2 is used for drainage.

[0036] Reference Figure 1 and Figure 2 A drainage hole 3 is provided at the bottom of the drainage ditch 2, a drainage pipe 4 is provided at the bottom of the drainage hole 3, the drainage pipe 4 is arranged inside the wall 1, and emergency drainage outlets 5 are provided on both sides of the drainage ditch 2.

[0037] The water flow inside the drainage ditch 2 flows into the drainage pipe 4 through the drainage hole 3 and is discharged through the drainage pipe 4. The emergency drainage outlet 5 is used to cope with emergencies.

[0038] Working principle: When in use, the filter frame 7 is placed in the placement cavity 6 inside the wall 1, and the filter frame 7 is fixedly connected to the wall 1 through the locking bolt 13, and then the grille plate 8 is placed on the top of the filter frame 7, the grille plate 8 is fitted with the fixing plate 10, and then the grille plate 8 is fixedly connected to the fixing plate 10 through the fixing bolt 9. When the grille plate 8 is stepped on, the spring 11 at the bottom of the fixing plate 10 can buffer and shock the grille plate 8 under the limit of the limit telescopic rod 12, so as to avoid the grille plate 8 from being deformed or broken due to being stepped on for a long time, thereby improving the bearing capacity and durability of the grille plate 8. When karst water flows onto the grille plate 8, basic filtration is performed through the grille plate 8. The water flows into the rectangular frame 15 through the grille plate 8, and the larger impurities in the water are filtered through the filter screen 16 inside the rectangular frame 15. The rectangular frame 15 can be detachably mounted on the baffle 14, so as to facilitate disassembly and cleaning. The water after the secondary filtration flows into the arc filter plate 17, and the smaller impurities in the water are filtered through the filter holes 18. After the third filtration, the water flows into the drain ditch 2, and then flows into the drain pipe 4 through the drain hole 3, and is discharged through the drain pipe 4. When the water flow is too large, it can be discharged quickly through the emergency drain port 5.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A karst tunnel drainage structure, comprising a wall (1), characterized in that: A placement cavity (6) is provided inside the wall (1), the interior of the placement cavity (6) is threadedly connected to a locking bolt (13), the exterior of the locking bolt (13) is threadedly connected to a filter frame (7), the filter frame (7) is arranged inside the placement cavity (6), the top of the filter frame (7) is fixedly connected to a limit telescopic rod (12), the exterior of the limit telescopic rod (12) is provided with a spring (11), the top of the limit telescopic rod (12) is fixedly connected to the bottom of a fixing plate (10), the bottom of the fixing plate (10) is fixedly connected to a spring (11), the bottom of the spring (11) is fixedly connected to the top of the filter frame (7), and a filter assembly is provided on the top of the filter frame (7).

2. A karst tunnel drainage structure according to claim 1, characterized in that: The filter assembly comprises a grid plate (8), wherein the grid plate (8) is arranged on the top of a fixing plate (10), the interior of the grid plate (8) is threadedly connected to a fixing bolt (9), the exterior of the fixing bolt (9) is threadedly connected to the fixing plate (10), and baffles (14) are fixedly connected to both sides of the interior of the filter frame (7).

3. A karst tunnel drainage structure according to claim 2, characterized in that: A rectangular frame (15) is provided on the top of the baffle (14), and a filter screen (16) is fixedly connected to the interior of the rectangular frame (15).

4. A karst tunnel drainage structure according to claim 2, characterized in that: An arc-shaped filter plate (17) is fixedly connected to the inner bottom of the filter frame (7), and filter holes (18) are provided inside the arc-shaped filter plate (17).

5. The karst tunnel drainage structure according to claim 1, characterized in that: A drainage ditch (2) is provided inside the wall (1), and the drainage ditch (2) is communicated with the placement cavity (6).

6. A karst tunnel drainage structure according to claim 5, characterized in that: The bottom of each drainage ditch (2) is provided with a drainage hole (3), and the bottom end of each drainage hole (3) is provided with a drainage pipe (4).

7. A karst tunnel drainage structure according to claim 6, characterized in that: The drainage pipe (4) is arranged inside the wall (1).

8. The karst tunnel drainage structure according to claim 5, characterized in that: Emergency drainage outlets (5) are provided on both sides of the drainage ditch (2).

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