CN220040172U

CN220040172U - Test device for simulating drainage seepage state of tunnel

Info

Publication number: CN220040172U
Application number: CN202321069703.0U
Authority: CN
Inventors: 曹小平; 王建华; 王少雄; 王楠; 王治霖
Original assignee: Lanzhou Jiaotong University
Current assignee: Lanzhou Jiaotong University
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-11-17
Anticipated expiration: 2033-05-06

Abstract

The utility model discloses a test device for simulating a drainage seepage state of a tunnel, and relates to the technical field of civil engineering tests. The utility model comprises a seepage model box, a tunnel model, a collecting box, a water tank, a water spraying component and a water storage component, wherein the tunnel model is arranged in the seepage model box, a plurality of layers of broken stone and surrounding rock are filled in the seepage model box, a communicating pipe is fixedly communicated between the collecting box and the tunnel model, the top end of the seepage model box is fixedly connected with four support columns, the water tank is fixedly connected with the top ends of the four support columns and is used for containing a water source for testing, and the water spraying component is arranged at the lower side of the water tank and is used for spraying water in the water tank into the seepage model box; the reciprocating assembly drives the water spraying assembly to continuously reciprocate on the upper side of the seepage model box, so that water in the water tank can be uniformly sprayed onto the seepage model box, and a rainy-day tunnel can be simulated more truly.

Description

Test device for simulating drainage seepage state of tunnel

Technical Field

The utility model belongs to the technical field of civil engineering tests, and particularly relates to a test device for simulating a drainage seepage state of a tunnel.

Background

At present, tunnel construction is good, however, as the operation time increases, more and more diseases appear in the operation tunnel, and about 30% of tunnels are counted to have serious water leakage phenomenon, and long-term water leakage of the tunnels can cause equipment damage in the tunnels, lining corrosion, wet and slippery pavement and water environment damage around the tunnels. The damage of tunnel leakage water can be seen, and one of the important reasons is that the effect mechanism of the tunnel structure in a seepage field is not known fully. For a tunnel seepage model, the stress of the structure under the seepage and load multi-factor coupling effect is complex, certain complexity and limitation exist in theoretical calculation, and a model test is an economic and effective method for monitoring the mechanical parameters and drainage flow of tunnels under different water level conditions, so that the relation between the tunnel structure and the seepage field can be effectively reflected.

Through retrieval, a system for simulating a tunnel seepage test is disclosed in the publication No. CN216023384U, and comprises a seepage model box, a tunnel model and a water tank, wherein the tunnel model is arranged on the seepage model box, the water tank is communicated with the seepage model box, a drainage acquisition device is arranged on the seepage model box, and the drainage acquisition device comprises a water inlet pipe, an acquisition box and a filtering and collecting assembly; the collecting box is arranged at one side of the seepage model box, and the filtering and collecting assembly is arranged in the collecting box; inlet tube one end sets up on tunnel model, and inlet tube and tunnel model are linked together, and the other end and the collection case intercommunication of inlet tube, but still have following problem when using:

1. pouring water into the seepage model box directly through the water tank, so that the real seepage state of a rainy day cannot be simulated, and excessive precipitation is possibly caused at part of the seepage model box due to the toppling position of the water tank, and insufficient precipitation is caused at part of the seepage model box, so that the analysis result is finally not objective enough;

2. the collection box is used for collecting muddy water solid matter components, but the capacity of the collection box is limited, and when the muddy water solid matter components are filled in the collection box, the collection box needs to be manually suspended for cleaning, so that the workload is increased, and the muddy water solid matter components are inconvenient to use.

Disclosure of Invention

The utility model aims to provide a test device for simulating a drainage seepage state of a tunnel, which drives a water spraying assembly to continuously reciprocate on the upper side of a seepage model box through a reciprocating assembly, so that water in a water tank can be uniformly sprayed onto the seepage model box, a rainy-day tunnel can be simulated more truly, and the prior art problem is solved.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model provides a test device of simulation tunnel drainage seepage flow state, includes seepage flow model box, tunnel model and collecting box, the tunnel model is located in the seepage flow model box, the intussuseption of seepage flow model box is filled with multilayer rubble, country rock, fixedly communicate between collecting box and the tunnel model has communicating pipe, still include the water tank, the top fixedly connected with four support columns of seepage flow model box, water tank fixedly connected with is used for holding the water source that carries out the test in the top of four support columns, the downside of water tank is equipped with the water spray subassembly, the water spray subassembly is used for drenching the water in the water tank to the seepage flow model box; the reciprocating assembly is arranged at the lower side of the water tank and used for driving the water spraying assembly to reciprocate, and the lower side of the water tank is also provided with a swinging assembly which is used for increasing the coverage range of the water spraying assembly; the filter screen, filter screen fixed connection is used for filtering solid object in the collection box, the collection box is equipped with a set of clean subassembly, clean subassembly is used for cleaning the solid object that the filter screen filtered out.

As still further scheme of the utility model, the reciprocating assembly comprises a first groove arranged at the bottom end of the water tank, the first groove is rotationally connected with a reciprocating screw rod, the circumferential surface of the reciprocating screw rod is in threaded connection with a threaded U-shaped plate, the side end of the water tank is fixedly connected with a first motor, and the first motor is connected with the reciprocating screw rod through a coupler.

As still further scheme of the utility model, the water spraying assembly comprises a water pump fixedly connected to the bottom end of the water tank, the water inlet pipe of the water pump is communicated with the water tank, the first rotating shaft is rotationally connected to the threaded U-shaped plate, the circumference surface of the first rotating shaft is fixedly connected with a communicating plate, the bottom end of the communicating plate is fixedly connected with a plurality of spray heads, and the water outlet pipe of the water pump is communicated with the communicating plate.

As still further scheme of the utility model, the swing assembly comprises a second rotating shaft which is rotatably connected with the side end of the threaded U-shaped plate, a half-tooth gear is fixedly connected with the circumferential surface of the second rotating shaft, a half-tooth toothed ring which is intermittently meshed with the half-tooth gear is slidingly connected with the side end of the threaded U-shaped plate, a first rack is fixedly connected with the bottom end of the half-tooth toothed ring, and a first gear which is meshed with the first rack is fixedly connected with the circumferential surface of the first rotating shaft.

As a still further proposal of the utility model, a second rack is fixedly connected between the two support columns, and the circumferential surface of the second rotating shaft is fixedly connected with a second gear meshed with the second rack.

As a still further scheme of the utility model, the cleaning component comprises a scraping plate which is connected in the collecting box in a sliding way, a U-shaped frame is fixedly connected at the side end of the collecting box, a rotating rod is rotationally connected in the U-shaped frame, a sliding plate is connected at the side end of the collecting box in a sliding way, the sliding plate is fixedly connected at the side end of the scraping plate, a sliding groove is formed in the sliding plate, a sliding block is fixedly connected at the side end of the rotating rod, the sliding block is connected in the sliding groove in a sliding way, a second motor is fixedly connected at the side end of the U-shaped frame, and the second motor is connected with the rotating rod through a coupler.

As a still further scheme of the utility model, a second groove is formed in the collection box, and a collection box is connected in the second groove in a sliding manner.

As a still further scheme of the utility model, the circumference surface of the communicating pipe is fixedly connected with a connecting block, the side end of the connecting block is provided with a first magnetic attraction piece, the top end of the collecting box is provided with a second magnetic attraction piece, and the first magnetic attraction piece is magnetically connected with the second magnetic attraction piece.

The embodiment of the utility model has the following beneficial effects:

according to the utility model, the reciprocating assembly drives the water spraying assembly to continuously reciprocate on the upper side of the seepage model box, so that water in the water tank can be uniformly sprayed on the seepage model box, a rainy-day tunnel can be more truly simulated, excessive precipitation at part of the seepage model box due to the toppling position of the water tank is avoided, and insufficient precipitation at part of the seepage model box is avoided, so that an objective analysis result is finally caused;

according to the utility model, the second groove is arranged in the collecting box in a sliding manner, the volume of the collecting box is increased, the collecting box is ensured to be cleaned without interrupting the test in the test process, the working efficiency is effectively increased, and the use difficulty of the device is reduced;

of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of the utility model at A in FIG. 2;

FIG. 3 is a schematic view of a first partial cross-sectional structure of an embodiment of the present utility model;

FIG. 4 is a schematic view of a second partial cross-sectional structure of an embodiment of the present utility model;

FIG. 5 is a schematic partial perspective view of an embodiment of the present utility model;

fig. 6 is a schematic diagram of a third partial cross-sectional structure according to an embodiment of the present utility model.

In the figure: 1. seepage model box; 2. a tunnel model; 3. a support column; 4. a water tank; 5. a first motor; 6. a first groove; 7. a reciprocating screw rod; 8. a threaded U-shaped plate; 9. a water pump; 10. a communication plate; 11. a spray header; 12. a first rotating shaft; 13. a first gear; 14. a first rack; 15. a half-tooth ring; 16. a half-tooth gear; 17. a second rotating shaft; 18. a second rack; 19. a second gear; 20. a communicating pipe; 21. a U-shaped frame; 22. a rotating rod; 23. a slide plate; 24. a second motor; 25. a second groove; 26. a collection box; 27. a connecting block; 28. a first magnetic sheet; 29. a second magnetic sheet; 30. a scraper; 31. a filter screen; 32. a chute; 33. a slide block; 34. and (5) a collection box.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-3, in this embodiment, a test device for simulating a drainage seepage state of a tunnel is provided, which comprises a seepage model box 1, a tunnel model 2 and a collection box 34, wherein the tunnel model 2 is arranged in the seepage model box 1, the seepage model box 1 is filled with multiple layers of broken stones and surrounding rocks, a communicating pipe 20 is fixedly communicated between the collection box 34 and the tunnel model 2, the test device further comprises a water tank 4, the top end of the seepage model box 1 is fixedly connected with four support columns 3, the water tank 4 is fixedly connected with the top ends of the four support columns 3 and is used for accommodating a water source for test, a water spraying component is arranged at the lower side of the water tank 4 and is used for spraying water in the water tank 4 into the seepage model box 1; the reciprocating assembly is arranged at the lower side of the water tank 4 and used for driving the water spraying assembly to reciprocate, and the lower side of the water tank 4 is also provided with a swinging assembly which is used for increasing the coverage range of the water spraying assembly; the filter screen 31, the filter screen 31 is fixedly connected in the collection box 34 for filtering solid objects, the collection box 34 is provided with a group of cleaning components, and the cleaning components are used for cleaning the solid objects filtered by the filter screen 31; the reciprocating assembly drives the water spraying assembly to continuously reciprocate on the upper side of the seepage model box 1, water in the water tank 4 can be uniformly sprayed onto the seepage model box 1, a rainy-day tunnel can be simulated more truly, excessive precipitation at part of the seepage model box due to the toppling position of the water tank 4 is avoided, and insufficient precipitation at part of the seepage model box is caused, so that an analysis result is finally not objective.

Referring to fig. 1-3, the reciprocating assembly comprises a first groove 6 which is arranged at the bottom end of a water tank 4, a reciprocating screw rod 7 is rotatably connected in the first groove 6, a threaded U-shaped plate 8 is connected on the circumferential surface of the reciprocating screw rod 7 in a threaded manner, a first motor 5 is fixedly connected at the side end of the water tank 4, and the first motor 5 is connected with the reciprocating screw rod 7 through a coupler; the water spraying assembly comprises a water pump 9 fixedly connected to the bottom end of the water tank 4, a water inlet pipe of the water pump 9 is communicated with the water tank 4, a first rotating shaft 12 is rotationally connected to the threaded U-shaped plate 8, a communicating plate 10 is fixedly connected to the circumferential surface of the first rotating shaft 12, a plurality of spray heads 11 are fixedly connected to the bottom end of the communicating plate 10, and a water outlet pipe of the water pump 9 is communicated with the communicating plate 10; a second rack 18 is fixedly connected between the two support columns 3, and a second gear 19 meshed with the second rack 18 is fixedly connected to the circumferential surface of the second rotating shaft 17; the swinging assembly comprises a second rotating shaft 17 which is rotationally connected to the side end of the threaded U-shaped plate 8, a half-tooth gear 16 is fixedly connected to the circumferential surface of the second rotating shaft 17, a half-tooth toothed ring 15 which is intermittently meshed with the half-tooth gear 16 is slidingly connected to the side end of the threaded U-shaped plate 8, a first rack 14 is fixedly connected to the bottom end of the half-tooth toothed ring 15, and a first gear 13 which is meshed with the first rack 14 is fixedly connected to the circumferential surface of the first rotating shaft 12; the first motor 5 is started to drive the reciprocating screw rod 7 to rotate, the reciprocating screw rod 7 rotates to drive the threaded U-shaped plate 8 to continuously reciprocate on the lower side of the water tank 4, the threaded U-shaped plate 8 drives the plurality of spray heads 11 to continuously reciprocate, water in the water tank 4 is pumped by the water pump 9 to be sent into the communication plate 10, the water is sent into the plurality of spray heads 11 through the communication plate 10 to spray, meanwhile, the threaded U-shaped plate 8 drives the second gear 19 to synchronously reciprocate when moving, the second gear 19 is meshed with the second rack 18, the second rack 18 drives the second gear 19 to continuously reciprocate, the second gear 19 rotates to drive the second rotating shaft 17 to rotate, the second rotating shaft 17 rotates to drive the half-tooth gear 16 to rotate, the half-tooth gear 16 rotates to drive the half-tooth ring 15 to reciprocate, the half-tooth ring 15 reciprocates to drive the first rack 14 to reciprocate, the first rack 14 drives the first gear 13 to reciprocate, the first rotating shaft 12 swings when the first gear 13 reciprocates, the first rotating shaft 12 drives the communication plate 10 and the plurality of spray heads 11 to reciprocate, and the coverage range of spraying is increased.

Example two

Improvement on the basis of the first embodiment: referring to fig. 3-6, the cleaning assembly comprises a scraper 30 slidably connected in a collection box 34, a U-shaped frame 21 is fixedly connected to the side end of the collection box 34, a rotating rod 22 is rotatably connected to the side end of the U-shaped frame 21, a sliding plate 23 is slidably connected to the side end of the collection box 34, a sliding groove 32 is formed in the sliding plate 23, a sliding block 33 is fixedly connected to the side end of the rotating rod 22, the sliding block 33 is slidably connected in the sliding groove 32, a second motor 24 is fixedly connected to the side end of the U-shaped frame 21, and the second motor 24 is connected with the rotating rod 22 through a coupling; the second groove 25 is formed in the collecting box 34, and the collecting box 26 is connected in a sliding manner in the second groove 25; the water oozing out of the tunnel model 2 enters the collecting box 34 through the communicating pipe 20, is collected after being filtered by the filter screen 31, the solid objects filtered by the filter screen 31 are driven to rotate by starting the second motor 24, the rotating rod 22 rotates to drive the sliding block 33 to perform circular motion, the sliding block 33 slides in the sliding groove 32 during circular motion, the sliding plate 23 is driven to perform relative reciprocating motion, the sliding plate 23 is driven to continuously reciprocate the scraping plate 30, and the solid objects on the surface of the filter screen 31 are stirred to two sides during the movement of the scraping plate 30, so that the solid objects enter the collecting box 26 to be collected.

Referring to fig. 4, a connection block 27 is fixedly connected to the circumferential surface of the communication pipe 20, a first magnetic suction piece 28 is arranged at the side end of the connection block 27, a second magnetic suction piece 29 is arranged at the top end of the collection box 34, the first magnetic suction piece 28 and the second magnetic suction piece 29 are magnetically connected, the communication pipe 20 and the collection box 34 are conveniently connected and separated, assembly is convenient during use, and the collection box 34 is conveniently detached after use and independently taken out.

The technical scheme of the utility model comprises the following use flows and working principles:

when in use, the first motor 5 is started to drive the reciprocating screw rod 7 to rotate, the reciprocating screw rod 7 rotates to drive the threaded U-shaped plate 8 to continuously reciprocate at the lower side of the water tank 4, the threaded U-shaped plate 8 drives the plurality of spray heads 11 to continuously reciprocate, water in the water tank 4 is pumped by the water pump 9 and is sent into the communication plate 10, the water is sent into the plurality of spray heads 11 through the communication plate 10 to spray, simultaneously, the threaded U-shaped plate 8 drives the second gear 19 to synchronously reciprocate when moving, the second gear 19 is meshed with the second rack 18, the second rack 18 drives the second gear 19 to continuously reciprocate, the second gear 19 rotates to drive the second rotating shaft 17 to rotate, the second rotating shaft 17 rotates to drive the half-tooth gear 16 to rotate, the half-tooth gear 16 rotates to drive the half-tooth ring 15 to reciprocate, the half-tooth toothed ring 15 reciprocates to drive the first rack 14 to reciprocate, the first rack 14 drives the first gear 13 to reciprocate, the first gear 13 drives the first rotating shaft 12 to oscillate when in reciprocation, the first rotating shaft 12 drives the communication plate 10 and the plurality of spray heads 11 to oscillate, the range of spray coverage is increased, water seeped from the tunnel model 2 enters the collecting box 34 through the communication pipe 20, the water is collected after being filtered by the filter screen 31, solid objects filtered by the filter screen 31 are driven to rotate by starting the second motor 24, the rotating rod 22 rotates to drive the sliding block 33 to perform circular motion, the sliding block 33 slides in the sliding groove 32 when in circular motion, so as to drive the sliding plate 23 to perform relative reciprocation, the sliding plate 23 drives the scraping plate 30 to perform continuous reciprocation, the solid objects on the surface of the filter screen 31 are stirred to two sides when the scraping plate 30 moves, so that it enters the collection box 26 to be collected.

Claims

1. The utility model provides a test device of simulation tunnel drainage seepage flow state, includes seepage flow model box (1), tunnel model (2) and collection case (34), in seepage flow model box (1) are located in tunnel model (2), seepage flow model box (1) intussuseption is filled with multilayer rubble, country rock, fixed intercommunication has communicating pipe (20) between collection case (34) and tunnel model (2), its characterized in that still includes:

the water seepage model box comprises a water tank (4), wherein the top end of the seepage model box (1) is fixedly connected with four support columns (3), the water tank (4) is fixedly connected to the top ends of the four support columns (3) and used for accommodating a water source for testing, a water spraying component is arranged on the lower side of the water tank (4) and used for spraying water in the water tank (4) into the seepage model box (1);

the reciprocating assembly is arranged at the lower side of the water tank (4) and used for driving the water spraying assembly to reciprocate, and the lower side of the water tank (4) is also provided with a swinging assembly which is used for increasing the coverage range of the water spraying assembly;

the filter screen (31), filter screen (31) fixed connection is used for filtering solid object in collection case (34), collection case (34) are equipped with a set of clean subassembly, clean subassembly is used for cleaning the solid object that filter out of filter screen (31).

2. The test device for simulating drainage and seepage states of tunnels according to claim 1, wherein the reciprocating assembly comprises a first groove (6) formed in the bottom end of the water tank (4), a reciprocating screw rod (7) is rotationally connected to the first groove (6), a threaded U-shaped plate (8) is connected to the circumferential surface of the reciprocating screw rod (7) in a threaded mode, a first motor (5) is fixedly connected to the side end of the water tank (4), and the first motor (5) is connected with the reciprocating screw rod (7) through a coupler.

3. The test device for simulating drainage and seepage states of tunnels according to claim 2, wherein the water spraying assembly comprises a water pump (9) fixedly connected to the bottom end of the water tank (4), a water inlet pipe of the water pump (9) is communicated with the water tank (4), a first rotating shaft (12) is rotationally connected to the threaded U-shaped plate (8), a communicating plate (10) is fixedly connected to the circumferential surface of the first rotating shaft (12), a plurality of spray heads (11) are fixedly connected to the bottom end of the communicating plate (10), and a water outlet pipe of the water pump (9) is communicated with the communicating plate (10).

4. A test device for simulating drainage and seepage states of tunnels according to claim 3, wherein the swinging assembly comprises a second rotating shaft (17) rotatably connected to the side end of the threaded U-shaped plate (8), a half-tooth gear (16) is fixedly connected to the circumferential surface of the second rotating shaft (17), a half-tooth toothed ring (15) intermittently meshed with the half-tooth gear (16) is slidingly connected to the side end of the threaded U-shaped plate (8), a first rack (14) is fixedly connected to the bottom end of the half-tooth toothed ring (15), and a first gear (13) meshed with the first rack (14) is fixedly connected to the circumferential surface of the first rotating shaft (12).

5. A test device for simulating drainage and seepage conditions of a tunnel according to claim 4, wherein a second rack (18) is fixedly connected between two support columns (3), and a second gear (19) meshed with the second rack (18) is fixedly connected to the circumferential surface of the second rotating shaft (17).

6. A test device for simulating drainage and seepage conditions of a tunnel according to any one of claims 1 to 4, wherein the cleaning assembly comprises a scraper (30) slidably connected in a collection box (34), a U-shaped frame (21) is fixedly connected to the side end of the collection box (34), a rotating rod (22) is rotatably connected to the U-shaped frame (21), a sliding plate (23) is slidably connected to the side end of the collection box (34), a sliding groove (32) is formed in the sliding plate (23), a sliding block (33) is fixedly connected to the side end of the rotating rod (22), a second motor (24) is slidably connected to the sliding groove (32), and the second motor (24) is connected to the side end of the U-shaped frame (21) through a coupling and the rotating rod (22).

7. The test device for simulating drainage and seepage states of tunnels according to claim 6, wherein a second groove (25) is formed in the collection box (34), and a collection box (26) is slidably connected in the second groove (25).

8. A test device for simulating drainage and seepage states of a tunnel according to any one of claims 1 to 5, wherein a connecting block (27) is fixedly connected to the circumferential surface of the communicating pipe (20), a first magnetic suction sheet (28) is arranged at the side end of the connecting block (27), a second magnetic suction sheet (29) is arranged at the top end of the collection box (34), and the first magnetic suction sheet (28) and the second magnetic suction sheet (29) are magnetically connected.