Cast-in-situ bored pile sediment device

Abstract

The invention provides a cast-in-situ bored pile sediment device, and belongs to the technical field of cast-in-situ bored piles. Comprising a lifting rope, a sinking operation structure is installed on the lower wall face of the lifting rope, a stirring structure is installed in the sinking operation structure, a sediment guiding-out structure is installed outside the lifting rope, a precipitation structure is installed at the tail of the sediment guiding-out structure, and a water return structure is installed on the upper wall face of the precipitation structure; according to the device, the protection cage and the side wall guide wheels are arranged and can play a role in protecting the inner wall of a base hole, the protection cage can avoid collision between a stirring net plate and the inner wall of the base hole, in this way, the integrity of the inner wall of the base hole can be guaranteed, and it can be guaranteed that the stirring net plate cannot be scraped off by the inner wall of the base hole; and the service life of the device is ensured.

Description

Technical Field

[0001] This invention belongs to the field of bored pile technology, specifically relating to a bored pile sedimentation device. Background Technology

[0002] Drilled cast-in-place piles are a type of pile foundation where a pile hole is formed in the ground on-site through mechanical drilling, steel pipe extrusion, or manual excavation. A reinforcing cage is then placed inside the hole, and concrete is poured in. The construction process is mainly divided into two categories: mud wall stabilization and full casing methods. The mud wall stabilization method uses circulating mud to stabilize the borehole wall, cool the drill bit, and remove slag; it is suitable for soil layers with high groundwater levels. The full casing method relies on a steel casing to isolate the borehole wall, eliminating the need for mud and allowing direct drilling and concrete pouring.

[0003] This type of pile foundation has advantages such as wide applicability, strong bearing capacity, and low construction noise and vibration. However, the quality of pile formation is significantly affected by concrete pouring process, sediment control and wall protection effect, and is prone to risks such as hole collapse, necking or pile breakage. Strict control is required for the cleaning of the hole, installation of the steel cage and underwater concrete pouring.

[0004] Excessive sediment buildup can reduce the bearing capacity and stability of pile foundations. In pile foundation engineering, sediment at the pile bottom can significantly weaken the pile's bearing capacity and cause uneven settlement or tilting, threatening the safety of the structure. Sediment not only directly endangers project safety but also causes multiple negative impacts through environmental pollution, interference with monitoring, and increased costs. Therefore, it needs to be controlled through strict hole cleaning processes and environmentally friendly disposal. Among them, the drilled pile sedimentation device with announcement number CN117418541A ​​uses an inner spiral blade to transport sediment from bottom to top and discharge it to the outside of the installation cylinder through the discharge hole. The inner spiral blade is set inside the operating cylinder so that it does not come into contact with the inner wall of the pile hole, that is, the inner spiral blade is not likely to cause damage to the inner wall of the pile hole when it is working. The cooperation of the feeding structure and the discharge structure transports the sediment to the outside of the installation cylinder, realizing the removal of sediment in the pile hole and improving the quality of drilled piles. However, this technical solution is limited by the size of the equipment, which leads to its limited scope of application. For the deep foundation piles, equipment that matches the depth of the foundation hole is required, which leads to a lower applicability of the equipment. Summary of the Invention

[0005] To address the limitation of existing technologies by equipment size, which restricts their application, and the need for equipment matching the depth of the borehole for deep-hole cast-in-place piles, this invention provides a sedimentation device for bored cast-in-place piles. The specific technical solution is as follows: A sedimentation device for bored cast-in-place piles includes: a lifting rope; a sinking operation structure installed on the lower wall of the lifting rope; an agitation structure installed inside the sinking operation structure; a sediment discharge structure installed outside the lifting rope; a sedimentation structure installed at the tail of the sediment discharge structure; and a water return structure installed on the upper wall of the sedimentation structure. The sinking operation structure includes: a lifting base, a motor frame, a protective cage, and several side-wall guide wheels. The lifting base is installed on the lower wall of the lifting rope, the motor frame is installed on the lower wall of the lifting base, the protective cage is installed on the outer wall of the motor frame, and the several side-wall guide wheels are respectively installed on the side walls of the protective cage. The agitation structure includes: a sediment agitator motor, an agitator connecting seat, three agitator connecting rods, and three agitator screens. The sediment agitator motor is installed on the inner wall of the motor frame, the agitator connecting seat is installed on the drive end of the sediment agitator motor, the three agitator connecting rods are evenly installed on the outer wall of the agitator connecting seat, and the three agitator screens are respectively installed on the lower wall of the agitator connecting rods. The cross-section of the three agitator screens is arc-shaped, and the protrusion direction of the three agitator screens is consistent with the rotation direction of the sediment agitator motor. The three agitator screens are provided with several sediment passage holes. The upper wall of the protective cage is equipped with three sets of counterweight structures. The counterweight structure includes: a counterweight base, a counterweight screw, several counterweight blocks, and a counterweight nut. The counterweight base is installed on the upper wall of the protective cage, the counterweight screw is installed on the upper wall of the counterweight base, the several counterweight blocks are respectively movably fitted on the outside of the counterweight screw, and the counterweight nut is movably installed on the outside of the counterweight screw through threads.

[0006] Preferably, the sediment discharge structure includes: three sediment adsorption ports, several discharge pipe supports, three discharge hoses, a sludge pump body, a sludge pump base, and a sludge pump discharge hose; the three sediment adsorption ports are respectively fixedly installed inside the motor frame, the several discharge pipe supports are respectively fixedly installed outside the lifting rope, one end of each of the three discharge hoses is installed inside the sediment adsorption ports, the three discharge hoses are respectively fixedly installed inside the several discharge pipe supports, the sludge pump body is installed at the tail of the three discharge hoses, the sludge pump base is installed on the lower wall of the sludge pump body, and one end of the sludge pump discharge hose is installed at the discharge port of the sludge pump body.

[0007] Preferably, the sedimentation structure includes: a sedimentation tank, a discharge pipe support, and a clear water tank; the discharge pipe support is installed at the tail end of the discharge hose of the sludge pump and is installed on the inner wall of the sedimentation tank; the clear water tank is installed on the side wall of the sedimentation tank; the sedimentation tank has a clear water outlet and the clear water tank has a clear water outlet, and the clear water outlets of the sedimentation tank and the clear water tank are aligned.

[0008] Preferably, the water return structure includes: a water return support, a water return pump, a water return hose, and a water return connecting rigid pipe; the water return support is installed on the upper wall of the clear water tank, the water return pump is installed on the upper wall of the water return support, one end of the water return hose is installed at the outlet of the water return pump, one end of the water return connecting rigid pipe is installed at the inlet of the water return pump, and the other end of the water return connecting rigid pipe extends into the clear water tank.

[0009] Preferably, the top of the lifting rope is provided with a hoisting connecting plate, the hoisting connecting plate is provided with a chamfer to prevent scratches, and the hoisting connecting plate is provided with a hole for hoisting equipment.

[0010] Preferably, the lower wall of the mud pump base is equipped with four raising legs, and the lower wall of each of the four raising legs is equipped with a shock-absorbing rubber pad.

[0011] Preferably, the three agitator plates are higher than the lower wall of the protective cage, and there is a clearance space between the lower wall of the three agitator plates and the lower wall of the protective cage.

[0012] Preferably, the length of the three agitating rods is less than the radius of the inner wall of the protective cage, and there is a clearance space between the tips of the three agitating rods and the inner wall of the protective cage.

[0013] The present invention provides a sedimentation device for bored piles, which, compared with the prior art, has the following advantages: This device, by incorporating a protective cage and several side-wall guide wheels, protects the inner wall of the borehole. The protective cage prevents the agitator mesh from colliding with the inner wall of the borehole, thus ensuring the integrity of the inner wall and preventing the agitator mesh from being broken, thereby extending the device's service life. When the protective cage collides with the inner wall of the borehole, the side-wall guide wheels contact the inner wall, ensuring the protective cage falls smoothly and preventing friction between the cage and the inner wall. Furthermore, the device has a weight-increasing structure, which improves the overall mass of the device, ensuring it can smoothly enter the bottom of the borehole, facilitating sediment removal. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first overall structure of the borehole pile sedimentation device provided by the present invention.

[0015] Figure 2 This is a schematic diagram of the second overall structure of the borehole pile sedimentation device provided by the present invention.

[0016] Figure 3 This is a first partial structural schematic diagram of the borehole pile sedimentation device provided by the present invention.

[0017] Figure 4 This is a schematic diagram of a second partial structure of the borehole pile sedimentation device provided by the present invention.

[0018] Figure 5 This is an exploded view of the third partial structure of the borehole pile sedimentation device provided by the present invention.

[0019] Figure 6 This is a partial exploded view of the fourth part of the structure of the borehole pile sedimentation device provided by the present invention.

[0020] Figure 7 This is a partial exploded view of the fourth part of the structure of the borehole pile sedimentation device provided by the present invention.

[0021] in, Figures 1 to 7 The attached diagrams and components for the sedimentation device of the bored pile are as follows: 1. Lifting rope; 2. Lifting seat; 3. Motor frame; 4. Protective cage; 5. Side guide wheel; 6. Sediment agitator motor; 7. Agitator connecting seat; 8. Agitator connecting rod; 9. Agitator mesh plate; 10. Sediment adsorption pipe opening; 11. Discharge pipe rack; 12. Discharge hose; 13. Sediment pump body; 14. Sediment pump base; 15. Sediment pump discharge hose; 16. Sedimentation tank; 17. Discharge pipe support; 18. Clear water tank; 19. Return water support seat; 20. Return water pump; 21. Return water hose; 22. Return water connecting rigid pipe; 23. Lifting connecting plate; 24. Counterweight base; 25. Counterweight screw; 26. Counterweight block; 27. Counterweight nut; 28. Heightening support leg; 29. ​​Vibration damping rubber pad. Detailed Implementation

[0022] The following are specific implementation cases and appendices. Figures 1-7The present invention will be further described, but the present invention is not limited to these embodiments. The present invention provides a technical solution: a sedimentation device for bored piles, comprising: a lifting rope 1, a sinking running structure installed on the lower wall of the lifting rope 1, an agitation structure installed inside the sinking running structure, a sediment discharge structure installed on the outside of the lifting rope 1, a sedimentation structure installed at the tail of the sediment discharge structure, and a water return structure installed on the upper wall of the sedimentation structure; the sinking running structure includes: a lifting base 2, a motor frame 3, a protective cage 4, and several side guide wheels 5; the lifting... The base 2 is installed on the lower wall of the lifting rope 1, the motor frame 3 is installed on the lower wall of the lifting base 2, the protective cage 4 is installed on the outer wall of the motor frame 3, and several side wall guide wheels 5 are respectively installed on the side walls of the protective cage 4. The top of the lifting rope 1 is provided with a hoisting connection plate 23, which has a chamfer to prevent scraping and a hole for hoisting equipment. The agitation structure includes: a sediment agitator 6, an agitation connection base 7, three agitation connecting rods 8, and three agitation mesh plates 9; the sediment agitator 6 is installed on the inner wall of the motor frame 3, and the agitation connection... The seat 7 is installed at the drive end of the sediment agitator 6. Three agitator connecting rods 8 are evenly installed on the outer wall of the agitator connecting seat 7. Three agitator screens 9 are respectively installed on the lower wall of the agitator connecting rods 8. The cross-section of the three agitator screens 9 is arc-shaped, and the protrusion direction of the three agitator screens 9 is consistent with the rotation direction of the sediment agitator 6. The three agitator screens 9 are provided with several sediment passage holes. The three agitator screens 9 are higher than the lower wall of the protective cage 4, and there is a clearance space between the lower wall of the three agitator screens 9 and the lower wall of the protective cage 4. The length of the three agitator connecting rods 8 is... The radius is smaller than the inner wall radius of the protective cage 4, and there is a clearance space between the tips of the three agitating connecting rods 8 and the inner wall of the protective cage 4. Three sets of counterweight structures are installed on the upper wall of the protective cage 4. The counterweight structures include: a counterweight base 24, a counterweight screw 25, several counterweight blocks 26, and a counterweight nut 27. The counterweight base 24 is installed on the upper wall of the protective cage 4, the counterweight screw 25 is installed on the upper wall of the counterweight base 24, several counterweight blocks 26 are respectively movably fitted on the outside of the counterweight screw 25, and the counterweight nut 27 is movably installed on the outside of the counterweight screw 25 by means of threads.

[0023] As a preferred embodiment, the sediment discharge structure further includes: three sediment adsorption ports 10, several discharge pipe supports 11, three discharge hoses 12, a sludge pump body 13, a sludge pump base 14, and a sludge pump discharge hose 15; the three sediment adsorption ports 10 are respectively fixedly installed inside the motor frame 3, the several discharge pipe supports 11 are respectively fixedly installed outside the lifting rope 1, one end of each of the three discharge hoses 12 is installed inside the sediment adsorption ports 10, the three discharge hoses 12 are respectively fixedly installed inside the several discharge pipe supports 11, the sludge pump body 13 is installed at the tail of the three discharge hoses 12, the sludge pump base 14 is installed on the lower wall of the sludge pump body 13, one end of the sludge pump discharge hose 15 is installed at the discharge port of the sludge pump body 13, and four raising feet 28 are installed on the lower wall of the sludge pump base 14, and shock-absorbing rubber pads 29 are respectively installed on the lower wall of the four raising feet 28.

[0024] As a preferred embodiment, the sedimentation structure further includes: a sedimentation tank 16, a discharge pipe support 17, and a clear water tank 18; the discharge pipe support 17 is installed at the tail end of the mud pump discharge hose 15 and is installed on the inner wall of the sedimentation tank 16, the clear water tank 18 is installed on the side wall of the sedimentation tank 16, the sedimentation tank 16 has a clear water outlet, the clear water tank 18 has a clear water outlet, and the clear water outlets of the sedimentation tank 16 and the clear water tank 18 are aligned.

[0025] As a preferred embodiment, the water return structure further includes: a water return support 19, a water return pump 20, a water return hose 21, and a water return connecting rigid pipe 22; the water return support 19 is installed on the upper wall of the clear water tank 18, the water return pump 20 is installed on the upper wall of the water return support 19, one end of the water return hose 21 is installed at the outlet of the water return pump 20, one end of the water return connecting rigid pipe 22 is installed at the inlet of the water return pump 20, and the other end of the water return connecting rigid pipe 22 extends into the clear water tank 18.

[0026] Working principle: Before using this device, the operator needs to connect an external AC power supply to the device to provide power to the electrical appliances in the device. Then, the sedimentation agent is poured into the sedimentation tank 16 to settle the sludge. Finally, the operator connects the hoisting equipment, such as a crane, through the hoisting connection plate 23 and the lifting rope 1, so that the hoisting equipment can lift the device to clean the sludge from the foundation hole of the cast-in-place pile.

[0027] The operator lifts the protective cage 4 by controlling the hoisting equipment and guides it into the foundation hole of the cast-in-place pile. Several side guide wheels 5 are brought into contact with the inner wall of the foundation hole. At the same time, the device is started, and the sediment stirring motor 6 and the mud pump body 13 begin to work.

[0028] Under the influence of gravity, the protective cage 4 descends continuously until it sinks to the bottom of the foundation hole of the cast-in-place pile, above the sediment layer in the foundation hole. As the sediment agitator 6 starts to work, its rotation drives the agitator connecting seat 7 and the three agitator connecting rods 8 to rotate. The rotation of the three agitator connecting rods 8 drives the three agitator screens 9 to rotate. To reduce resistance, the cross-section of the three agitator screens 9 is arc-shaped, and the sides of the three agitator screens 9 are provided with several sediment through holes to facilitate sediment passage and avoid excessive resistance of the three agitator screens 9. Three rotating agitator plates 9 agitate the sediment deposited at the bottom of the pores. At the same time, the sludge pump body 13 is also passing through. Since the three sediment adsorption ports 10 are located near the sediment agitator motor 6, the three agitator plates 9 agitate the sediment. The muddy water mixed with sediment enters the outlet hose 12 through the sediment adsorption ports 10, and finally enters the sedimentation tank 16 through the sludge pump body 13 and the sludge pump discharge hose 15.

[0029] Sedimentation tank 16 is sprayed with a sedimentation agent. The sediment in the muddy water is attached to the sedimentation agent and settles at the bottom of sedimentation tank 16. As more muddy water is pumped out by the mud pump body 13, the sediment in the muddy water continues to accumulate at the bottom of sedimentation tank 16 under the action of the sedimentation agent. The settled water flows into clear water tank 18 through clear water outlet. At the same time, return water pump 20 starts to work. Return water pump 20 flows the settled water in clear water tank 18 back to the foundation hole through return water connection hard pipe 22 and return water hose 21.

[0030] As the working time increases, the sediment at the bottom of the foundation hole is stirred up, and through the action of sedimentation, the sediment is filtered into the sedimentation tank 16, ensuring the stability of the foundation hole and facilitating subsequent grouting piles.

[0031] By increasing the number of counterweights 26, the weight of the device can be increased, thereby increasing the speed at which the device falls from the base hole. The specific installation process is as follows: the operator removes the counterweight nut 27, increases the number of external counterweights 26 on the counterweight screw 25, and then installs the counterweight nut 27 and the counterweight screw 25 by threading them together, thus achieving the effect of increasing weight.

[0032] The protective cage 4 and several side wall guide wheels 5 serve a protective function, allowing the sediment stirring motor 6 to drive the three stirring screens 9 to rotate inside the protective cage 4. This prevents the stirring screens 9 from colliding with the inner wall of the foundation hole, ensuring the integrity of the inner wall and preventing the stirring screens 9 from being scraped off, thus extending the service life of the device. When the protective cage 4 collides with the inner wall of the foundation hole, the side wall guide wheels 5 will contact the inner wall, ensuring the protective cage 4 falls smoothly and preventing friction between the protective cage 4 and the inner wall of the foundation hole.

[0033] The sediment stirring motor 6 is an underwater motor, and the motor is powered by waterproof cable, which makes it convenient for the sediment stirring motor 6 to work underwater. There is no limit to the specific length of the lifting rope 1 and the three outlet hoses 12. The operator needs to adjust the length according to the specific construction situation, and the protective cage 4 can be lowered to the bottom of the sediment layer.

[0034] In the description of this invention, the term "a plurality of" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A sedimentation device for bored piles, comprising: A lifting rope (1) is characterized in that a sinking running structure is installed on the lower wall of the lifting rope (1), an agitation structure is installed inside the sinking running structure, a sediment discharge structure is installed on the outside of the lifting rope (1), a sedimentation structure is installed at the tail of the sediment discharge structure, and a water return structure is installed on the upper wall of the sedimentation structure; the sinking running structure includes: a lifting seat (2), a motor frame (3), a protective cage (4), and several side wall guide wheels (5); the lifting seat (2) is installed on the lower wall of the lifting rope (1), the motor frame (3) is installed on the lower wall of the lifting seat (2), the protective cage (4) is installed on the outer wall of the motor frame (3), and several side wall guide wheels (5) are respectively installed on the side wall of the protective cage (4); The agitation structure includes: a sediment agitator motor (6), an agitator connecting seat (7), three agitator connecting rods (8), and three agitator screens (9); the sediment agitator motor (6) is installed on the inner wall of the motor frame (3), the agitator connecting seat (7) is installed on the drive end of the sediment agitator motor (6), the three agitator connecting rods (8) are evenly installed on the outer wall of the agitator connecting seat (7), the three agitator screens (9) are respectively installed on the lower wall of the agitator connecting rods (8), the cross-section of the three agitator screens (9) is arc-shaped, and the protrusion direction of the three agitator screens (9) is consistent with the rotation direction of the sediment agitator motor (6), and the three agitator screens (9) are provided with several sediment passage holes; The upper wall of the protective cage (4) is equipped with three sets of counterweight structures, which include: a counterweight base (24), a counterweight screw (25), several counterweight blocks (26), and a counterweight nut (27). The counterweight base (24) is installed on the upper wall of the protective cage (4), the counterweight screw (25) is installed on the upper wall of the counterweight base (24), several counterweight blocks (26) are respectively movably fitted on the outside of the counterweight screw (25), and the counterweight nut (27) is movably installed on the outside of the counterweight screw (25) by means of threads.

2. The sedimentation device for bored piles according to claim 1, characterized in that, The sediment discharge structure includes: three sediment adsorption ports (10), several discharge pipe supports (11), three discharge hoses (12), a sludge pump body (13), a sludge pump base (14), and a sludge pump discharge hose (15); the three sediment adsorption ports (10) are respectively fixedly installed inside the motor frame (3), the several discharge pipe supports (11) are respectively fixedly installed outside the lifting rope (1), one end of the three discharge hoses (12) is respectively installed inside the sediment adsorption ports (10), the three discharge hoses (12) are respectively fixedly installed inside the several discharge pipe supports (11), the sludge pump body (13) is installed at the tail of the three discharge hoses (12), the sludge pump base (14) is installed on the lower wall of the sludge pump body (13), and one end of the sludge pump discharge hose (15) is installed at the discharge port of the sludge pump body (13).

3. The sedimentation device for bored piles according to claim 1, characterized in that, The sedimentation structure includes: a sedimentation tank (16), a discharge pipe support (17), and a clear water tank (18); the discharge pipe support (17) is installed at the tail end of the mud pump discharge hose (15), and the discharge pipe support (17) is installed on the inner wall of the sedimentation tank (16), the clear water tank (18) is installed on the side wall of the sedimentation tank (16), the sedimentation tank (16) has a clear water outlet, the clear water tank (18) has a clear water outlet, and the clear water outlets of the sedimentation tank (16) and the clear water outlets of the clear water tank (18) are aligned.

4. The sedimentation device for bored piles according to claim 1, characterized in that, The water return structure includes: a water return support (19), a water return pump (20), a water return hose (21), and a water return connecting hard pipe (22); the water return support (19) is installed on the upper wall of the clear water tank (18), the water return pump (20) is installed on the upper wall of the water return support (19), one end of the water return hose (21) is installed at the outlet of the water return pump (20), one end of the water return connecting hard pipe (22) is installed at the inlet of the water return pump (20), and the other end of the water return connecting hard pipe (22) extends into the clear water tank (18).

5. The sedimentation device for bored piles according to claim 1, characterized in that, The top of the lifting rope (1) is provided with a hoisting connecting plate (23), the hoisting connecting plate (23) is provided with a chamfer to prevent scratches, and the hoisting connecting plate (23) is provided with a hoisting equipment use hole.

6. The sedimentation device for bored piles according to claim 3, characterized in that, The lower wall of the mud pump base (14) is equipped with four heightening support legs (28), and the lower wall of the four heightening support legs (28) is respectively equipped with shock-absorbing rubber pads (29).

7. The sedimentation device for bored piles according to claim 2, characterized in that, The three agitation mesh plates (9) are higher than the lower wall of the protective cage (4), and there is an open space between the lower wall of the three agitation mesh plates (9) and the lower wall of the protective cage (4).

8. The sedimentation device for bored piles according to claim 2, characterized in that, The length of the three stirring rods (8) is less than the radius of the inner wall of the protective cage (4), and there is a clearance space between the tip of the three stirring rods (8) and the inner wall of the protective cage (4).

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