A mud filtration device and construction system for impact drilling cast-in-place piles

Abstract

This utility model provides a mud filtration device and construction system for impact drilled cast-in-place piles, belonging to the field of building construction. It is used to solve the problem of low efficiency in separating mud and slag using gravity sedimentation in existing technologies. The device includes a first filter plate, a vibration mechanism, and a fixing mechanism. By installing a vibrating filter plate at an incline on the top of the mud tank, the vibration of the filter plate can quickly and effectively separate solid particles such as drill cuttings and sand from the mud. Compared with the traditional gravity sedimentation method, this significantly shortens the mud filtration time and improves the filtration efficiency. Simultaneously, the vibration of the filter plate causes the mud to move violently, promoting better separation of smaller, lighter solid particles from the mud, thereby significantly improving the quality of the filtered mud and making its performance indicators more in line with construction requirements. This is beneficial for ensuring the construction quality and stability of the impact drilled cast-in-place piles.

Description

Technical Field

[0001] This utility model belongs to the field of building construction, and in particular relates to a mud filtration device and construction system for impact drilling cast-in-place piles. Background Technology

[0002] In the construction of foundation engineering projects such as bridges and buildings, percussion drilled piles are a common and important type of foundation, widely used in engineering construction under various geological conditions. During the construction of percussion drilled piles, a large amount of drilling mud is required to carry drill cuttings, cool the drill bit, and protect the borehole wall to ensure smooth drilling operations. However, as the drilling depth increases and construction continues, drill cuttings, sand, and other solid particles accumulate in the drilling mud, leading to a gradual deterioration of its properties, such as increased specific gravity, higher viscosity, and excessive sand content. Deteriorated drilling mud not only affects drilling efficiency and increases drill bit wear but may also cause serious quality problems such as borehole wall collapse, thereby affecting the stability and durability of the entire pile foundation project.

[0003] To address these issues, a common method currently used is to construct sedimentation tanks and mud pits at the construction site. These tanks are connected, and the mud pits are in turn connected to the cast-in-place piles. The mud extracted from the piles is first discharged into the sedimentation tank, where it is allowed to settle naturally. Solid particles gradually settle to the bottom under gravity, thus separating the mud from the sediment. The mud then flows back into the piles through the mud pit. However, this method has significant drawbacks: firstly, the gravity sedimentation process is very slow, requiring a long settling time to achieve good separation, which greatly limits construction efficiency and prolongs the project cycle; secondly, for some small-sized, lightweight solid particles, gravity sedimentation alone is insufficient for effective separation, resulting in filtered mud still containing many impurities, failing to meet the high performance requirements of construction mud. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a mud filtration device and construction system for impact drilling cast-in-place piles, which solves the problem of low efficiency in separating mud and sludge by gravity sedimentation in the prior art.

[0005] To achieve the above and other related objectives, this utility model provides a mud filtration device for impact drilling cast-in-place piles, comprising: a first filter plate, a vibration mechanism, and a fixing mechanism; the first filter plate is inclinedly disposed on the ground, with a portion of the first filter plate located above a mud tank, and the lower end of the first filter plate located above a sedimentation tank; the vibration mechanism and the fixing mechanism are disposed on the ground, and the lower end of the first filter plate is rotatably connected to the fixing mechanism; the output end of the vibration mechanism abuts against the lower side of the higher end of the first filter plate, and the vibration mechanism is used to drive the first filter plate to rotate relative to the fixing mechanism.

[0006] Optionally, a U-shaped limiting groove is provided on the upper side of the first filter plate, with the opening of the U-shaped limiting groove facing the sedimentation tank.

[0007] Optionally, the vibration mechanism includes a first rotating shaft, a cam, a driving member, and two spaced-apart first fixed seats; the first rotating shaft is rotatably connected to the first fixed seats, the cam is disposed on the first rotating shaft and located between the two spaced-apart first fixed seats, and the cam abuts against the lower side of the higher end of the first filter plate; the output end of the driving member is connected to the first rotating shaft and is used to drive the first rotating shaft to rotate.

[0008] Optionally, the drive unit drives the first shaft to rotate via a belt drive assembly.

[0009] Optionally, the fixing mechanism includes a second rotating shaft and two spaced-apart second fixing seats; the second rotating shaft is rotatably connected to the first filter plate, and a second fixing seat is connected to each end of the second rotating shaft, and the second rotating shaft is fixedly connected to the second fixing seats.

[0010] Optionally, it includes multiple fasteners for securing the first and / or second fixing seats to the ground.

[0011] Optionally, the fastener is a ground stake.

[0012] Optionally, it also includes a support plate, multiple fixed columns, cables, and a hoisting mechanism; the support plate is located inside the sedimentation tank, and multiple filter holes are spaced apart on the support plate, and the fixed columns are spaced apart on the support plate; the cables are used to connect with the hoisting mechanism and each fixed column; the hoisting mechanism is used to remove the support plate from the sedimentation tank.

[0013] On the other hand, a construction system for percussion drilled cast-in-place piles is also provided, including a mud pit, a sedimentation tank, a lifting mechanism, a hammer, a suction mechanism, a pipeline, and a mud filtration device for percussion drilled cast-in-place piles as described above; the mud pit and sedimentation tank are arranged alternately, and the mud pit and sedimentation tank are connected to the cast-in-place pile; the lifting mechanism is set on the ground and is used to drive the hammer to move; the suction mechanism is used to extract the sediment at the bottom of the cast-in-place pile and discharge it through the pipeline to the first filter plate, so that the first filter plate can separate the mud and sediment.

[0014] Optionally, a second filter plate is installed in the mud channel connecting the sedimentation tank and the mud tank.

[0015] As described above, the mud filtration device and construction system for impact drilled cast-in-place piles of this utility model have at least the following beneficial effects: By installing a vibrating filter plate at an incline on the top of the mud pit, the vibration of the filter plate can quickly and effectively separate solid particles such as drill cuttings and sand from the mud; compared with the traditional gravity sedimentation method, the mud filtration time is greatly shortened and the filtration efficiency is improved. At the same time, the vibration of the vibrating filter plate can cause the mud to move violently, which can also promote the better separation of solid particles with smaller particle size and lighter specific gravity from the mud, thereby significantly improving the quality of the filtered mud and making its various performance indicators more in line with construction requirements, which is conducive to ensuring the construction quality and stability of the impact drilled cast-in-place piles. Attached Figure Description

[0016] Figure 1 The diagram shown is an overall structural schematic of a construction system for impact drilling and grouting piles according to this utility model.

[0017] Figure 2 The diagram shows the structure of the vibration mechanism, the first filter plate, and the fixing mechanism of a mud filtration device for impact drilling and grouting piles according to this utility model.

[0018] Figure 3 The diagram shows the structural design of the support frame and the fixing column of a mud filtration device for an impact drilled cast-in-place pile according to this utility model.

[0019] Component designation explanation:

[0020] 1. First filter plate; 11. U-shaped limiting groove; 2. Vibration mechanism; 21. First rotating shaft; 22. Cam; 23. Driving component; 24. First fixed seat; 3. Fixing mechanism; 31. Second rotating shaft; 32. Second fixed seat; 4. Fixing component; 5. Bearing plate; 6. Fixed column; 7. Cable; 8. Lifting mechanism; 9. Second filter plate; 10. Mud tank; 20. Sedimentation tank; 30. Lifting mechanism; 40. Impact hammer; 50. Suction mechanism; 60. Pipeline. Detailed Implementation

[0021] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0022] Please refer to all the accompanying drawings below. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0023] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0024] Please see Figure 1 This utility model provides a construction system for impact drilling and grouting piles, which includes a mud tank 10, a sedimentation tank 20, a lifting mechanism 30, a hammer 40, a suction mechanism 50, a pipeline 60, and a mud filtration device.

[0025] Mud pit 10 and sedimentation tank 20 are spaced apart on the bottom surface, and mud pit 10, sedimentation tank 20, and cast-in-place piles are connected. Lifting mechanism 30 can be a winch or similar equipment, connected to hammer 40, used to drive hammer 40 to move, thereby enabling the construction of cast-in-place piles. Suction mechanism 50 can be a mud pump or air compressor, used to extract sediment from the bottom of the cast-in-place pile hole. After extracting the sediment, suction mechanism 50 discharges it through pipe 60 to a mud filtration device for filtration.

[0026] During operation, a winch and a hammer 40 are used to construct the cast-in-place pile. Since the mud pit 10 is connected to the cast-in-place pile, the mud in the mud pit 10 will automatically fill the pile. After the cast-in-place pile construction is completed or when it is necessary to clean the sediment at the bottom of the pile, the hammer 40 can be removed from the pile, and the input end of the suction mechanism 50 can be inserted into the pile. The output end is connected to the pipe 60, and the outlet of the pipe 60 is connected to the mud filter device. The sediment extracted by the suction mechanism 50 will then be discharged into the mud filter device for filtration, separating the mud and sediment.

[0027] Please see Figure 1-2The mud filtration device may include a first filter plate 1, a vibration mechanism 2, and a fixing mechanism 3. The first filter plate 1 may be a plate-shaped structure made of materials such as iron or stainless steel, and has multiple filter holes for mud to pass through. The first filter plate 1 is inclined and set on the ground, with part of the first filter plate 1 located above the mud tank 10, and the lower end of the first filter plate 1 located above the sedimentation tank 20. In this way, after the suction mechanism 50 extracts the sludge, the mixture of sludge and mud is discharged onto the first filter plate 1, and the first filter plate 1 separates the mud and sludge. The mud flows automatically into the mud tank 10 through the filter holes, while the sludge is transferred to the sedimentation tank 20 by its own gravity.

[0028] The vibration mechanism 2 and the fixing mechanism 3 are set on the ground. The lower end of the first filter plate 1 is rotatably connected to the fixing mechanism 3, which is used to fix the first filter plate 1 to the ground. The output end of the vibration mechanism 2 abuts against the lower side of the higher end of the first filter plate 1. The vibration mechanism 2 is used to drive the first filter plate 1 to rotate relative to the fixing mechanism 3, thereby accelerating the separation of mud and sludge.

[0029] This embodiment utilizes a vibrating filter plate inclined at the top of the mud tank 10. The vibration of the filter plate quickly and effectively separates solid particles such as drill cuttings and sand from the mud. Compared to traditional gravity sedimentation, this significantly shortens the mud filtration time and improves filtration efficiency. Simultaneously, the vibration of the filter plate causes vigorous movement of the mud, promoting better separation of smaller, lighter solid particles from the mud. This significantly improves the quality of the filtered mud, ensuring its performance indicators better meet construction requirements and contributing to the construction quality and stability of the impact drilled piles.

[0030] Because the vibrating filter plate is inclined and its lower end is connected to the sedimentation tank 20, during the filtration process, the filtered slurry automatically flows into the slurry tank 10, while the separated sediment smoothly enters the sedimentation tank 20 under the action of gravity and vibration. This automatic diversion design eliminates the need for frequent manual intervention, simplifies the slurry filtration process, reduces labor intensity, minimizes the impact of human factors on the slurry filtration effect, and improves the automation and controllability of the construction process.

[0031] By efficiently filtering the sludge, the content of solid particles in the sludge is reduced, thus lowering the amount of sludge discharged. Simultaneously, the filtered sludge can be recycled, improving sludge utilization and reducing water waste. Furthermore, collecting sediment in sedimentation tank 20 facilitates subsequent unified treatment and disposal, preventing pollution of the surrounding environment caused by indiscriminate sediment discharge. This aligns with the energy-saving and environmental protection requirements of modern engineering construction, demonstrating significant social and environmental benefits.

[0032] A U-shaped limiting groove 11 is provided on the upper side of the first filter plate 1, and the opening of the U-shaped limiting groove 11 faces the sedimentation tank 20. The U-shaped groove can be formed by three guide plates provided on the upper side of the first filter plate 1, which are used to guide the sediment into the sedimentation tank 20 and prevent the sediment from falling into the mud tank 10.

[0033] The vibration mechanism 2 may include a first rotating shaft 21, a cam 22, a drive element 23, and two spaced-apart first fixed seats 24. The first rotating shaft 21 is rotatably connected to the first fixed seats 24 via bearings. The cam 22 is fixedly mounted on the first rotating shaft 21 and located between the two spaced-apart first fixed seats 24. The cam 22 abuts against the lower side of the higher end of the first filter plate 1. The cam 22 may have an elliptical structure, so that when the cam 22 rotates once, it drives the first filter plate 1 to vibrate twice, thereby improving the filtration efficiency. The drive element 23 may be a motor, which may be mounted on the ground or on the first fixed seats 24. Its output end is connected to the first rotating shaft 21 to drive the first rotating shaft 21 to rotate.

[0034] The driving component 23 can drive the first rotating shaft 21 to rotate through a transmission method such as gear transmission. In this embodiment, the driving component 23 drives the first rotating shaft 21 to rotate through a belt transmission assembly. Specifically, a first pulley is provided on the first rotating shaft 21, and a second pulley is coaxially provided on the output shaft of the driving component 23. A belt is sleeved on the first pulley and the second pulley, so that the driving component 23 drives the first rotating shaft 21 to rotate through the belt transmission assembly.

[0035] The fixing mechanism 3 includes a second rotating shaft 31 and two spaced-apart second fixing seats 32; the second rotating shaft 31 can be rotatably connected to the first filter plate 1 via bearings or other structures. Each end of the second rotating shaft 31 is connected to a second fixing seat 32, and the second fixing seats 32 and the second rotating shaft 31 can be fixedly connected by welding or other means.

[0036] The first fixed seat 24 and the second fixed seat 32 can be fixedly connected to the ground through the fixing member 4, which can be a ground nail, so as to ensure that the first fixed seat 24 and the second fixed seat 32 will not be relatively displaced from the ground during the vibration of the first filter plate 1.

[0037] Please see Figure 1 , 3The mud filtration device may also include a support plate 5, multiple fixed columns 6, cables 7, and a hoisting mechanism 8. Multiple filter holes are spaced apart on the support plate 5. The fixed columns 6 are spaced apart on the support plate 5. The cables 7, such as wire ropes, are used to connect to the hoisting mechanism 8 and each fixed column 6. The hoisting mechanism 8 can be a hoisting device such as an electric hoist or winch. In use, the support plate 5 is placed at the bottom of the sedimentation tank 20, with the fixed columns 6 extending above the sedimentation tank 20 for connection to the cables 7. The hoisting mechanism 8 is used to remove the support plate 5 from the sedimentation tank 20. During removal, because the support plate 5 has filter holes, the hoisting mechanism 8 can only remove the sediment from the sedimentation tank 20, achieving efficient and precise cleaning of the sediment in the sedimentation tank 20. This avoids the problem of difficult separation of mud and sediment in traditional cleaning methods, greatly improving cleaning efficiency.

[0038] A second filter plate 9 may also be installed in the mud channel connecting the sedimentation tank 20 and the mud tank 10. The second filter plate 9 may also be a plate-shaped structure made of materials such as stainless steel, and it also has multiple filter holes. When the mud flows from the sedimentation tank 20 to the mud tank 10, the second filter plate 9 can effectively intercept the finer sediments that are thrown up by the impact force of falling sediments, preventing them from re-entering the mud tank 10. This further improves the purity of the mud, ensures the stability of the mud used in subsequent construction processes, and meets the high mud quality requirements of impact drilling and grouting pile construction.

[0039] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A slurry filtering device for impact driven cast-in-place piles, characterized by, include: The first filter plate, the vibration mechanism, and the fixing mechanism; The first filter plate is inclined on the ground, with part of the first filter plate located above the mud tank, and the lower end of the first filter plate located above the sedimentation tank. The vibration mechanism and the fixing mechanism are set on the ground, and the lower end of the first filter plate is rotatably connected to the fixing mechanism; The output end of the vibration mechanism abuts against the lower side of the higher end of the first filter plate, and the vibration mechanism is used to drive the first filter plate to rotate relative to the fixed mechanism. It also includes a load-bearing plate, multiple fixed columns, cables, and a hoisting mechanism; The support plate is located inside the sedimentation tank, and multiple filter holes are spaced apart on the support plate. The fixing columns are spaced apart on the support plate. The cable is used to connect to the hoisting mechanism and each of the fixing columns. The hoisting mechanism is used to remove the support plate from the sedimentation tank.

2. The slurry filtering device of the impact bored pile according to claim 1, characterized in that: The upper side of the first filter plate is provided with a U-shaped limiting groove, and the opening of the U-shaped limiting groove is oriented towards the sedimentation tank.

3. The slurry filtering device of the impact bored pile according to claim 2, characterized in that: The vibration mechanism includes a first rotating shaft, a cam, a driving component, and two spaced-apart first fixed seats; The first rotating shaft is rotatably connected to the first fixed seat, the cam is disposed on the first rotating shaft and located between two spaced-apart first fixed seats, and the cam abuts against the lower side of the higher end of the first filter plate; The output end of the drive component is connected to the first rotating shaft and is used to drive the first rotating shaft to rotate.

4. The slurry filtering device of the impact bored pile according to claim 3, characterized in that: The drive component drives the first rotating shaft to rotate via a belt drive assembly.

5. The slurry filtering device of the impact bored pile according to claim 3, characterized in that: The fixing mechanism includes a second rotating shaft and two spaced-apart second fixing seats; The second rotating shaft is rotatably connected to the first filter plate, and a second fixed seat is connected to each end of the second rotating shaft. The second rotating shaft is fixedly connected to the second fixed seat.

6. The slurry filtering device of a cast-in-place bored pile according to claim 5, characterized in that: It also includes multiple fasteners for securing the first and / or second fixing seats to the ground.

7. The slurry filtering device of a cast-in-place bored pile according to claim 6, characterized in that: The fixing element is a ground nail.

8. A construction system of an impact bored pile, characterized by, It includes a mud pit, a sedimentation tank, a lifting mechanism, a hammer, a suction mechanism, a pipeline, and a mud filtration device for a percussion drilled pile as described in any one of claims 1-7. The mud pit and sedimentation pit are arranged at intervals, and the mud pit and sedimentation pit are connected to the cast-in-place pile; The lifting mechanism is installed on the ground and is used to drive the hammer to move; The suction mechanism is used to extract the sediment from the bottom of the grouting pile and discharge it through a pipe to the first filter plate, so that the first filter plate can separate the mud and sediment.

9. The construction system of a cast-in-place bored pile according to claim 8, characterized in that: A second filter plate is installed in the mud channel connecting the sedimentation tank and the mud tank.

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