An underwater moving water grouting filling reinforcement simulation device and method

Abstract

The application provides a water bottom dynamic water grouting filling reinforcement simulation device and method, relates to the field of geotechnical engineering, and aims at the problem that a complex dynamic water environment cannot be simulated when dynamic water grouting filling reinforcement is simulated at present. A flow uniformizing plate with flow uniformizing holes is arranged in a water tank, dynamic water is uniformly divided into a test area, a water baffle is arranged on one side of the flow uniformizing plate, the water baffle changes the flow uniformizing holes blocked by adjusting the position of the water baffle relative to the flow uniformizing plate, the position of the dynamic water entering the test area is changed, the flow distribution of the test area is adjusted, the complex dynamic water environment is simulated in the test area, and the test demand of simulating the grouting filling reinforcement process under different environments is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of geotechnical engineering, in particular to a water bottom dynamic water grouting filling reinforcement simulation device and method. BACKGROUND

[0002] In the process of urban construction, serious disasters such as water and mud inrush are prone to occur when underground engineering encounters water-rich caves and faults; and the pile foundation concrete of marine construction engineering is also easily affected by seawater erosion, and the current and seawater convection also increase the difficulty and cost of pile foundation maintenance and maintenance. The traditional water bottom dynamic water grouting filling reinforcement simulation method has serious limitations in the special scenes of underwater cave grouting and pile foundation scouring pit grouting, and does not fully consider the particularity of underwater and submarine environment and the complex hydrodynamic effect of special scenes, which seriously affects the accuracy and reliability of the simulation results.

[0003] A detachable test device for testing the anti-scouring performance of grouting material under dynamic water action is disclosed in Chinese patent (publication number: CN 116296957 A), which simulates the anti-dispersion performance of dynamic water grouting material under different flow rates. A detachable test plate is designed, which can simulate the roughness of different grouting environment formations by adjusting the density and height of the synapse. The dynamic water flows into the water tank through the uniform flow rate box, and two water baffles are arranged in the uniform flow rate box to uniformly output the dynamic water, so as to ensure that the dynamic water enters the water tank in a uniform and stable state. Although it can adjust the flow rate, in underground engineering and marine construction engineering, the dynamic water scouring and erosion faced is not simply different flow rates, but also complex dynamic water environments such as upwelling, turbulence and surface current. The current test device is difficult to simulate the grouting filling process under complex dynamic water environment; in addition, the dynamic water is transported into the water tank by a water pump or other pressure equipment. In order to meet the demand of dynamic water flow, the water pump is connected to the water tank at a position with high water pressure. The current uniform flow rate box has poor effect on pressure water flow, and the pressure water flow will directly enter the test area through the opening on the uniform flow rate box, which is difficult to accurately simulate and control the flow state of the dynamic water, affecting the test effect. SUMMARY

[0004] The purpose of the present application is to overcome the defects of the prior art, and to provide a water bottom dynamic water grouting filling reinforcement simulation device and method. A uniform flow plate with uniform flow holes is arranged in the water tank to divide the dynamic water into the test area, and a water baffle is arranged on one side of the uniform flow plate. The water baffle adjusts its position relative to the uniform flow plate to change the uniform flow holes blocked, changes the position of the dynamic water entering the test area, adjusts the water flow distribution of the test area, simulates the complex dynamic water environment in the test area, and meets the test demand of simulating the grouting filling reinforcement process under different environments.

[0005] The first object of the present application is to provide a water bottom dynamic water grouting filling reinforcement simulation device, which adopts the following scheme:

[0006] Comprise:

[0007] Water tank, the inside forms water flow passage, the both ends of water flow passage are equipped with water inlet hole and drainage hole respectively, water inlet hole accesses pressure water source;

[0008] Flow equalizing plate, it is equipped with multiple flow equalizing holes to form orifice plate, in the direction of the line of the both ends of water flow passage, at least two flow equalizing plates are arranged in water flow passage, and the test area is formed between the adjacent two flow equalizing plates;

[0009] Baffle, slidingly installed in the water flow passage between the test area and water inlet hole, blocks part of flow equalizing holes of the flow equalizing plate upstream of the test area;

[0010] Test container, suspended in the test area by moving support, the outlet of grouting pipe is fixed towards the test container on the support.

[0011] Further, the baffle and the sliding groove in the water flow passage are slidingly matched, the sliding groove is distributed along the direction perpendicular to the line of the both ends of water flow passage, and the baffle is slidingly adjusted in position along the distribution direction of the sliding groove.

[0012] Further, the baffle is attached to the blocked flow equalizing plate, and the baffle is detachably matched with the sliding groove, and at least one baffle is slidingly matched in the sliding groove.

[0013] Further, the flow equalizing plate towards the water inlet hole is provided with a blocking area, the blocking area is a flat plate structure, and the water flow output by the water inlet hole acts on the blocking area.

[0014] Further, one flow equalizing plate is arranged between the test area and the water inlet hole, and the flow equalizing holes on the one flow equalizing plate are distributed around the blocking area thereon.

[0015] Further, the baffle is located on the side of the one flow equalizing plate away from the water inlet hole, and the flow equalizing holes are arrayed on the flow equalizing plate between the test area and the drainage hole.

[0016] Further, the moving support is connected with the test container through the clamping mechanism, the moving support and the water tank form a moving pair, the moving direction of the moving pair is parallel to the line direction of the both ends of the water tank, and the grouting pipe accesses the grouting pump.

[0017] Further, the clamping mechanism and the moving support are further provided with a lifting mechanism, the lifting mechanism drives the clamping mechanism and the test container to lift relative to the water tank, and the moving direction of the lifting mechanism is perpendicular to the line direction of the both ends of the water tank.

[0018] The second object of the present application is to provide a test method of the water bottom dynamic water grouting filling reinforcement simulation device according to the first object, which comprises:

[0019] Prepare a test slurry, determine the water flow mode and height in the test area based on the simulated dynamic water environment, calculate the output parameters of the pressure water source and the distribution position of the baffle;

[0020] The pressure water source injects water into the water tank through the water inlet hole, the dynamic water is divided by the flow uniforming plate upstream of the test area, and enters the test area under the blocking action of the baffle with the required water flow distribution;

[0021] The test container is placed in the dynamic water of the test area, the grouting pipe injects grout into the test container, and the grout is partially retained in the test container under the influence of the dynamic water, simulating the grouting and reinforcement process of the water bottom dynamic water;

[0022] After the test time is reached, the pressure water source is closed, and the test container is taken out to calculate the grout retention rate and analyze the grouting effect.

[0023] Further, by adjusting the position of the baffle to change the water flow distribution in the test area, the water flow distribution in the test area is in the required simulation state.

[0024] Compared with the prior art, the application has the advantages and positive effects of:

[0025] (1) In view of the problem that the current simulation of dynamic water grouting and reinforcement cannot simulate complex dynamic water environment, a flow uniforming plate with flow uniforming holes is arranged in the water tank to divide the dynamic water and enter the test area uniformly, and a water baffle is arranged on one side of the flow uniforming plate, the water baffle adjusts the position of the flow uniforming holes by adjusting the position of the flow uniforming plate, changes the position of the dynamic water entering the test area, adjusts the water flow distribution in the test area, simulates the complex dynamic water environment in the test area, and meets the test demand of simulating the grouting and reinforcement process in different environments.

[0026] (2) In addition to the flow uniforming holes, the flow uniforming plate is also provided with a non-penetrating sealing area, the sealing area is a flat solid structure, the sealing area faces the water inlet hole of the water tank, bears the pressure water flow input by the water inlet hole and disperses it to the surrounding, avoids the water flow directly passing through the flow uniforming holes to enter the test area, reduces the uncontrollable disturbance to the water flow in the test area, thereby realizing the control of the dynamic water entering the test area and reducing the test interference.

[0027] (3) The moving support is used to bear the clamping mechanism, the clamping mechanism suspends the test container in the water tank, the position of the test container can be changed by adjusting the position of the clamping mechanism to change the depth during the simulation test, thereby simulating the grouting and reinforcement process under different depths; in addition, the clamping mechanism also serves as a fixing structure of the grouting pipe, so that the position of the grouting pipe can match the position of the test container, meeting the test demand. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings, which form a part of this specification, are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification. The embodiments of the application, and their

[0029] Figure 1 The schematic diagram of the water bottom dynamic water grouting filling reinforcement simulation device in the embodiment 1 and 2 of the application.

[0030] Figure 2 The schematic diagram of the relative position of the moving support and the water tank in the embodiment 1 and 2 of the application.

[0031] Figure 3 The schematic diagram of the distribution position of the flow uniforming plate in the embodiment 1 and 2 of the application.

[0032] Figure 4 The top view schematic diagram of the water bottom dynamic water grouting filling reinforcement simulation device in the embodiment 1 and 2 of the application.

[0033] Figure 5 The schematic diagram of the test container in the embodiment 1 and 2 of the application.

[0034] Figure 6 The schematic diagram of the flow uniforming plate in the embodiment 1 and 2 of the application.

[0035] Wherein, 1. pressure water tank, 2. flow limiting valve, 3. plugging area, 4. water delivery pipe, 5. flow uniforming cavity, 6. water tank, 7. flow uniforming plate, 8. baffle, 9. moving support, 10. lifting clamping mechanism, 11. test container, 12. water inlet hole, 13. drainage hole, 14. flow uniforming hole, 15. chute, 16. grouting pump, 17. grouting pipe. DETAILED DESCRIPTION

[0036] Embodiment 1

[0037] In a typical embodiment of the application, as shown in Figures 1-6 , a water bottom dynamic water grouting filling reinforcement simulation device is given.

[0038] At present, when the anti-scour performance test of grouting material under dynamic water is carried out, only the flow rate and height of dynamic water can be adjusted, and the complex dynamic water environment cannot be simulated. Based on this, in the embodiment, a water bottom dynamic water grouting filling reinforcement simulation device is provided. After the dynamic water is divided by the flow uniforming plate 7 with the flow uniforming hole 14, the distribution of the dynamic water entering the test area can be changed by the baffle 8, so that the grouting simulation area is in different dynamic water environment, and the needs of simulating the grouting filling reinforcement process under different environments are met.

[0039] As shown in Figure 1As shown, the water bottom moving water grouting filling reinforcement simulation device includes a water tank 6, a flow equalizing plate 7, a baffle 8, a test container 11 and a grouting pipe 17. The water tank 6 forms a water flow channel inside, and the moving water flows in the water flow channel. The water flow channel is respectively provided with a water inlet hole 12 and a water outlet hole 13 at two ends. The water inlet hole 12 is connected to a pressure water source, and the water outlet hole 13 can discharge water in the water flow channel. The flow equalizing plate 7 is provided with a plurality of flow equalizing holes 14 to form a hole plate. At least two flow equalizing plates 7 are arranged in the water flow channel in the direction of the line connecting the two ends of the water flow channel, and a test area is formed between the adjacent two flow equalizing plates 7.

[0040] The baffle 8 is slidingly installed in the water flow channel between the test area and the water inlet hole 12, and blocks part of the flow equalizing holes 14 of the flow equalizing plate 7 upstream of the test area. The test container 11 is suspended in the test area by a moving support 9, and the grouting pipe 17 with an outlet facing the test container 11 is fixed on the support. During the simulation test, the outlet of the grouting pipe 17 is also located below the water surface.

[0041] A water flow channel is formed inside the water tank 6, and the water flow channel is respectively provided with a water inlet hole 12 and a water outlet hole 13 at two ends. The water inlet hole 12 is used to connect to a pressure water source to generate moving water effect; the water outlet hole 13 is used to discharge water flow to maintain the water flow circulation in the water tank 6. A stable and controllable water flow environment is provided to facilitate the simulation of different flow rates and different flow field distribution of moving water conditions.

[0042] A plurality of flow equalizing plates 7 with a plurality of flow equalizing holes 14 are arranged in the water flow channel to uniformly distribute the water flow to the test area. At least two flow equalizing plates 7 are arranged in the direction of the line connecting the two ends of the water flow channel, and a test area is formed between the adjacent two flow equalizing plates 7. The problem of uneven distribution of water flow before entering the test area is solved, and the water flow in the test area is made more uniform through the flow equalizing holes 14, which improves the accuracy and reliability of the test and ensures the repeatability and consistency of the water flow conditions in the test area.

[0043] A baffle 8 is slidingly installed in the water flow channel between the test area and the water inlet hole 12. The baffle 8 can adjust its position as needed to block part of the flow equalizing holes 14 of the flow equalizing plate 7 upstream of the test area. It allows flexible adjustment of the position and flow distribution of the moving water entering the test area, thereby simulating different complexity of moving water environment. The adaptability and flexibility of the simulation device are enhanced, and the needs of grouting filling and reinforcement simulation under different water flow conditions are met.

[0044] The test container 11 and the grouting pipe 17 provide a platform for simulating the grouting and filling reinforcement process, so that the grouting process can be carried out in a simulated dynamic water environment. The true simulation of the grouting and filling reinforcement process helps to evaluate the influence of different grouting materials, grouting parameters and dynamic water conditions on the reinforcement effect. Through the cooperation of the water tank 6, the flow equalizing plate 7, the baffle 8 and the test container 11 and other components, the problem of simulating the grouting and filling reinforcement in a dynamic water environment is successfully solved, the accuracy and reliability of the test are improved, and strong support is provided for related engineering research.

[0045] In this embodiment, as shown in Figure 1 The pressure water source includes a pressure water tank 1, a flow limiting valve 2 and a flowmeter. The pressure water tank 1 is connected to the water inlet hole 12 of the water tank 6 through the water delivery pipe 4 and the flow limiting valve 2. The pressure water source can adjust the pressure of the pressure water tank 1 and the opening of the flow limiting valve 2, so as to adjust the flow rate and water pressure and other parameters of the water flow input into the water tank 6.

[0046] In view of the complexity of underwater and marine environments and special scenes, including flow rate, laminar flow and other influencing factors, the baffle 8 is configured for the flow equalizing plate 7 in this embodiment. The position of the baffle 8 is adjusted to change the water flow input into the test area, so as to change the dynamic water distribution in the test area, accurately simulate the complex dynamic water environment, simulate the process of grouting and filling reinforcement under the action of the dynamic water environment through the grouting pipe 17 and the test container 11, and facilitate indoor simulation test.

[0047] The test container 11 can adopt a test bowl, the structure of which is as shown in Figure 5 The test bowl is used to hold the grout, and the grouting pipe 17 is connected to the external grouting pump 16 and the grout supply system.

[0048] As shown in Figure 2 and Figure 3 The baffle 8 is in sliding fit with the sliding groove 15 in the water flow channel, and the sliding groove 15 is distributed along the direction perpendicular to the connecting line of the two ends of the water flow channel. The baffle 8 can slide along the distribution direction of the sliding groove 15 to adjust its position, so as to change the blocked flow equalizing hole 14. By adjusting the position of the baffle 8, the position and flow distribution of the dynamic water entering the test area can be accurately controlled.

[0049] The baffle 8 is in fit with the blocked flow equalizing plate 7 to ensure the sealing property. The baffle 8 is in fit with the sliding groove 15 in a detachable manner, and multiple baffles 8 can be in sliding fit in the sliding groove 15. The good fit of the baffle 8 with the flow equalizing plate 7 when adjusting the position is ensured, water leakage is prevented, and the number of baffles 8 can be replaced or adjusted according to the test requirements, so as to increase the diversity of the test.

[0050] The simulation of upwelling, surface ocean current and turbulent flow is realized by the position of the baffle 8, and the position of the baffle 8 in the sliding groove 15 and the relative relationship between the baffle 8 and the flow equalizing plate 7 need to be accurately controlled.

[0051] Simulation of upwelling. Upwelling usually occurs in certain areas of the ocean, such as coastal upwelling, which is the phenomenon of seawater flowing from deep to surface due to factors such as wind stress, topography, or seawater density differences.

[0052] Place the baffle 8 near the bottom of the tank 6 and partially or completely block the flow holes 14 on the bottom flow plate 7. In this way, when the water flow enters the test area through the unblocked flow holes 14, a low-pressure area will be formed below the baffle 8 due to the bottom obstruction, thereby attracting deep water flow upward. The position of the baffle 8 in the chute 15 can also be adjusted to change the intensity and range of the upwelling.

[0053] Simulation of surface ocean currents. Surface ocean currents are mainly driven by wind stress, forming large-scale horizontal flow on the ocean surface.

[0054] Place the baffle 8 near the top or middle of the tank 6 and adjust its position to partially or completely open the flow holes 14 on the top or middle flow plate 7. In this way, the water flow can smoothly enter the test area through these open flow holes 14, simulating surface ocean currents.

[0055] The direction and speed of the water flow can also be changed by adjusting the angle of the baffle 8, thereby more accurately simulating surface ocean currents under different wind directions.

[0056] Simulation of turbulent flow. Turbulent flow is a complex form of fluid motion, characterized by random fluctuations in fluid velocity and pressure over time and space.

[0057] Partial blocking and opening: Multiple baffles 8 are placed on the flow plate 7, and their positions are adjusted to partially block and open the flow holes 14. This uneven blocking method will cause velocity differences and eddies in the water flow as it passes through the flow plate 7, thereby simulating turbulent flow phenomena. Adding obstacles: Some obstacles (such as small rock models, grids, etc.) are added in the test area, which will disturb the flow of the water flow and increase the intensity of turbulent flow. Adjusting water flow speed: The overall speed of the water flow is changed by increasing the water pressure of the inlet hole 12 or adjusting the drainage speed of the tank 6. An increase in speed usually intensifies turbulent flow phenomena.

[0058] By precisely controlling the position, height, angle of the baffle 8 in the chute 15, and its relative relationship with other flow plates 7, combined with the addition of obstacles and adjustment of water flow speed, complex water flow phenomena such as upwelling, surface ocean currents, and turbulent flow can be effectively simulated. The parameters obtained from the simulation provide a data basis for studying the grouting and filling reinforcement process under the action of dynamic water.

[0059] In this embodiment, two flow uniformity plates 7 are provided and are spaced apart. The flow uniformity plate 7 upstream of the test area is the first plate, and the flow uniformity plate 7 downstream of the test area is the second plate. The first plate and the water inlet hole 12 form a flow uniformity cavity 5 for temporarily storing the flowing water. The second plate and the water outlet hole 13 form a water outlet cavity for temporarily storing the flowing water.

[0060] As shown in Figure 6 , the flow uniformity plate 7 facing the water inlet hole 12 is provided with a flat plate structure of the blocking area 3. The water flow output by the water inlet hole 12 acts on the blocking area 3. The blocking area 3 bears and disperses the pressure water flow input by the water inlet hole 12, avoiding the water flow directly passing through the flow uniformity hole 14 into the test area, reducing the uncontrollable disturbance to the water flow in the test area. The control ability of the flowing water entering the test area is improved, the test interference is reduced, and the reliability of the test result is ensured.

[0061] The flow uniformity hole 14 on the flow uniformity plate 7 between the water inlet hole 12 and the test area is distributed around the blocking area 3 thereon. It is ensured that the water flow dispersed from the blocking area 3 can uniformly pass through the flow uniformity hole 14 into the test area, providing better conditions for simulating complex flowing water environment.

[0062] As shown in Figure 4 , the baffle 8 is located on the side of the flow uniformity plate 7 away from the water inlet hole 12 between the water inlet hole 12 and the test area, and the flow uniformity holes 14 are arrayed on the flow uniformity plate 7 between the test area and the water outlet hole 13. By adjusting the position of the baffle 8, the direction and flow of the water flow entering the test area are accurately controlled. It is ensured that the water flow between the test area and the water outlet hole 13 can be smoothly discharged, maintaining the water flow circulation in the water tank 6. The accuracy and controllability of the test are improved, and the stability and repeatability of the test result are ensured.

[0063] As shown in Figure 4 , the moving support 9 is connected to the test container 11 through the clamping mechanism and forms a moving pair with the water tank 6, and can move parallel to the line connecting the two ends of the water tank 6. The lifting mechanism is provided between the clamping mechanism and the moving support 9, which can drive the clamping mechanism and the test container 11 to lift relative to the water tank 6. The grouting pipe 17 is connected to the grouting pump 16 and is fixed above the test container 11 by the clamping mechanism.

[0064] When configuring the moving support 9, the clamping mechanism and the lifting mechanism, the functions of each component, the cooperation between them and the stability of the overall structure need to be considered.

[0065] Among them, the main body of the moving support 9 should be made of solid metal material (such as stainless steel or aluminum alloy) to ensure its carrying capacity and durability. The moving support 9 is installed with rollers at the bottom, which can smoothly move along the top of the side plates on both sides of the top opening of the water tank 6. By moving, the position of the clamping mechanism and the lifting mechanism above it is changed, thereby changing the position of the test container 11.

[0066] The clamping mechanism is used to fix and support the test container 11, and can detachably clamp the test container 11 or remove the test container 11. The lifting mechanism usually adopts a motor as a power source, and converts the rotary motion of the motor into linear motion through a transmission system such as gears, chains, lead screws, etc. In this embodiment, the clamping mechanism and the lifting mechanism can adopt an integrated lifting and clamping mechanism 10.

[0067] By moving the support 9 and the lifting mechanism, the position and depth of the test container 11 can be adjusted during the test to simulate the grouting reinforcement process at different depths. Ensure that the position of the grouting pipe 17 matches the position of the test container 11 to meet the test requirements. Improve the diversity and flexibility of the test, and can more comprehensively simulate the grouting reinforcement process in actual engineering. Simplify the test operation process and improve the test efficiency.

[0068] Among them, the test container 11 can be weighed before testing, and the weight is measured after testing to calculate, that is, the slurry retention rate can be obtained, and the measurement error is reduced.

[0069] Embodiment 2

[0070] In another typical embodiment of the present application, as shown in Figures 1-6 A test method of a water bottom dynamic water grouting filling and reinforcement simulation device is given, which utilizes the water bottom dynamic water grouting filling and reinforcement simulation device in embodiment 1.

[0071] A test method of a water bottom dynamic water grouting filling and reinforcement simulation device, comprising:

[0072] Prepare the test slurry, determine the dynamic water mode and height in the test area based on the simulated dynamic water environment, calculate the output parameters of the pressure water source and the distribution position of the baffle 8;

[0073] The pressure water source injects water into the water tank 6 through the water inlet hole 12, the dynamic water is divided by the flow distribution plate 7 upstream of the test area, and enters the test area under the blocking action of the baffle 8 with the required water flow distribution;

[0074] The test container 11 is placed in the dynamic water of the test area, the grouting pipe 17 injects grouting into the test container 11, and the slurry is partially retained in the test container 11 under the influence of the dynamic water, simulating the water bottom dynamic water grouting filling and reinforcement process;

[0075] After the test time is reached, the pressure water source is turned off, and the test container 11 is taken out to calculate the slurry retention rate and analyze the grouting effect.

[0076] Among them, by adjusting the position of the baffle 8 to change the water flow distribution in the test area, the water flow distribution in the test area is in the required simulation state.

[0077] Specifically, a test method of the underwater dynamic water grouting filling and reinforcement simulation device comprises the following steps:

[0078] Step 1: Prepare the test slurry, and investigate the flow rate, dynamic water flow mode and height according to the corresponding dynamic water environment; select a suitable measuring container according to the required slurry quality, and weigh the mass m0;

[0079] Step 2: Build the underwater dynamic water grouting filling and reinforcement simulation device, adjust the detachable water baffle in the uniform flow rate box at both ends to a suitable height to simulate the corresponding dynamic water condition; adjust the mobile support 9 to a suitable position, and adjust the lifting clamping mechanism to place the detachable test bowl in the test water tank 6 at the required height;

[0080] Step 3: Connect the dynamic water supply system with the water inlet of the water tank 6, adjust the flow limiting valve 2 so that the flow rate displayed on the flowmeter is the same as the measured dynamic water flow rate, and adjust the outlet flow rate so that the flow rate and water level in the test tank are stable;

[0081] Step 4: Fix the grouting pipe 17 on the upper end of the mobile support 9, with the pipe opening downward and aligned with the center of the detachable test container 11, and grout the grouting slurry with a mass of m1 through the grouting pump 16 to start the test;

[0082] Step 5: Multiple test times such as 10 min, 30 min, 60 min and 120 min can be set, and after the target time is reached, the flow limiting valve 2 is closed, the detachable test container 11 is removed, and the mass m2 is measured;

[0083] Step 6: Calculate and record the corresponding grouting effect according to the formula: k=(m2*m0) / m1*100%.

[0084] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A underwater dynamic water grouting filling reinforcement simulation device, characterized in that: include: The water tank has a water flow channel formed inside, and a water inlet hole and a drain hole are respectively provided at both ends of the water flow channel, and the water inlet hole is connected to the pressure water source; A flow balancing plate is provided with a plurality of flow balancing holes to form an orifice plate. At least two flow balancing plates are arranged in the water flow channel at intervals in the direction of the line connecting the two ends of the water flow channel, and a test area is formed between two adjacent flow balancing plates; The baffle is slidably installed in the water flow channel between the test area and the water inlet, blocking part of the flow equalizing holes of the flow equalizing plate upstream of the test area, thereby adjusting the position and flow distribution of the dynamic water entering the test area; The test container is suspended in the test area by a movable bracket. The position of the clamping mechanism and the lifting mechanism on the bracket is changed to change the position of the test container. A grouting pipe with an outlet facing the test container is fixed on the bracket.

2. The underwater dynamic water grouting filling reinforcement simulation device according to claim 1, characterized in that: The baffle is slidably matched with the chute in the water flow channel. The chute is distributed in a direction perpendicular to the line connecting the two ends of the water flow channel. The baffle slides along the distribution direction of the chute to adjust its position.

3. The underwater dynamic water grouting filling reinforcement simulation device according to claim 2, characterized in that: The baffle is fitted with the blocked flow equalizing plate, and the baffle is detachably fitted in the slide groove, in which at least one baffle is slidably fitted.

4. The underwater dynamic water grouting filling reinforcement simulation device according to claim 1, characterized in that: A blocking area is provided on the flow equalizing plate facing the water inlet hole. The blocking area is a flat plate structure, and the water flow output from the water inlet hole acts on the blocking area.

5. The underwater dynamic water grouting filling reinforcement simulation device according to claim 4, characterized in that: A flow balancing plate is provided between the test area and the water inlet hole, and the flow balancing holes on the flow balancing plate are distributed around the blocking area thereon.

6. The underwater dynamic water grouting filling reinforcement simulation device according to claim 5, characterized in that: The baffle is located on a side of the flow balancing plate away from the water inlet hole, and the flow balancing holes are distributed in an array on the flow balancing plate between the test area and the drain hole.

7. The underwater dynamic water grouting filling reinforcement simulation device according to claim 1, characterized in that: The movable bracket is connected to the test container through a clamping mechanism. The movable bracket and the water tank form a movable pair. The moving direction of the movable pair is parallel to the direction of the line connecting the two ends of the water tank. The grouting pipe is connected to the grouting pump.

8. The underwater dynamic water grouting filling reinforcement simulation device according to claim 7, characterized in that: A lifting mechanism is provided between the clamping mechanism and the movable bracket, and the lifting mechanism drives the clamping mechanism and the test container to move up and down relative to the water tank, and the moving direction of the lifting mechanism is perpendicular to the direction of the line connecting the two ends of the water tank.

9. A test method for an underwater dynamic water grouting filling reinforcement simulation device, using the underwater dynamic water grouting filling reinforcement simulation device according to any one of claims 1 to 8, characterized in that: include: Prepare the test slurry, determine the water flow pattern and height within the test area based on the simulated water flow environment, and calculate the output parameters of the pressure water source and the baffle distribution position; The pressure water source injects water into the water tank through the water inlet hole. The moving water is divided by the flow equalizer plate upstream of the test area and enters the test area with the required water flow distribution under the blocking effect of the baffle. The test container is placed in the dynamic water of the test area, and the grouting pipe injects grout into the test container. Under the influence of the dynamic water, part of the slurry remains in the test container, simulating the underwater dynamic water grouting filling and reinforcement process; After the test time is reached, turn off the pressure water source, take out the test container to calculate the slurry retention rate and analyze the grouting effect.

10. The test method of the underwater dynamic water grouting filling reinforcement simulation device according to claim 9, characterized in that: The water flow distribution in the test area is changed by adjusting the baffle position so that the water flow distribution in the test area is in the desired simulation state.

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