A mud circulating device and method for water-based joint-row bored piles

Abstract

The application relates to the technical field of a bored pile mud circulating device, in particular to a water-based joint-row bored pile mud circulating device and method, which comprises a movable mud pool and an overflow shell installed in a drilling hole, the movable mud pool comprises a main pool body and a moving assembly, the moving assembly is fixedly installed at the lower end face of the main pool body, a device table is arranged in the middle part of the main pool body, the device table is fixedly connected with the main pool body, a mud filter shell group is installed at the upper end face of the device table, and one end of the mud filter shell group is rotationally connected with the device table. The movable mud pool is designed as a structure matched with the main pool body and the moving assembly, the use position of the equipment can be flexibly adjusted through the moving assembly during use, the use position can be easily adjusted when different position drilling is constructed, and the stable support use of the mud filter shell group is guaranteed through the installation of the device table in the main pool body.

Description

Technical Field

[0001] This invention relates to the technical field of slurry circulation devices for cast-in-place piles, and particularly to a slurry circulation device and method for cast-in-place piles connected to a waterway. Background Technology

[0002] Aquatic pile foundations are an engineering technology used for foundation construction in aquatic environments. They are mainly used for the foundation construction of aquatic structures such as bridges, wharves, and breakwaters. During construction, a mud circulation device is needed to clean the mud, sand, and gravel from the pile holes.

[0003] Chinese Patent CN114875897B discloses a reverse circulation cast-in-place pile construction device with a retaining wall structure. The device includes a retaining wall cylinder and a grout pipe. The retaining wall cylinder is located at the opening of the pile hole, and its outer wall contacts the hole wall. One end of the grout pipe is connected to the retaining wall cylinder, and the other end is connected to a sedimentation tank. This application guides the slurry in the sedimentation tank through the retaining wall cylinder and grout pipe, ensuring that the slurry enters the pile hole with minimal contact or impact with the soil structure at the hole opening. This improves the stability of the soil structure and reduces the risk of hole wall collapse.

[0004] Regarding the aforementioned technologies, it has been found that existing methods for circulating slurry in cast-in-place piles require the excavation of sedimentation tanks and slurry tanks at the construction site. Furthermore, slurry trenches need to be excavated based on the drilling location. This not only occupies a large amount of construction land and greatly limits the flexibility of construction operations, but also requires preliminary surveying and excavation, as well as subsequent repaving and road surface repair after construction. This increases construction costs and reduces operational efficiency. Additionally, the sedimentation tank method for settling sludge and gravel is time-consuming and not conducive to rapid slurry circulation. Summary of the Invention

[0005] This invention solves the problems in related technologies and proposes a mud circulation device and method for water-based joint-row cast-in-place piles. It overcomes the shortcomings of existing sedimentation tanks for sedimentation and sand removal, while being more flexible in use and having higher operating efficiency.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a mud circulation device for water-based joint-row cast-in-place piles, comprising a mobile mud tank and an overflow shell installed in the borehole. The mobile mud tank includes a main tank body and a moving assembly. The moving assembly is fixedly installed on the lower end face of the main tank body. An equipment platform is provided in the middle of the main tank body. The equipment platform is fixedly connected to the main tank body, and a mud filter shell assembly is installed on the upper end face of the equipment platform. One end of the mud filter shell assembly is rotatably connected to the equipment platform, and a hydraulic cylinder for adjusting the operating angle of the mud filter shell assembly is installed on the equipment platform. Several filter screen frames are installed along the circumferential direction at the edge of the mud filter shell assembly. The filter screen frames are inserted and fixedly connected to the mud filter shell assembly. A mud receiving shell is also rotatably installed at the center of the mud filter shell assembly, and a motor for driving the mud receiving shell to rotate is fixedly installed in the mud filter shell assembly. A mud diversion shell assembly is installed on the upper end face of the mud filter shell assembly. One end of the mud diversion shell assembly is connected to the overflow shell, and the other end of the mud diversion shell assembly is fixedly connected to the mud filter shell assembly.

[0007] By adopting the above technical solution, the mobile mud tank is designed with a main tank body and a mobile assembly in combination. When easy to use, the main tank body serves as a mud storage structure, ensuring mud supply to the mud circulation device during circulation. Furthermore, the mobile assembly installed at the lower end of the main tank body allows for flexible adjustment of its position during use. An equipment platform located in the middle of the main tank body supports the installation of the mud filter shell assembly, allowing for adjustment of its height. The hydraulic cylinder allows for adjustment of the operating angle. The mud filter shell assembly provides stable installation of the mud receiving shell, ensuring... During use, the mud receiving shell assembly receives the drilling mud and stably introduces the discharged mud into the receiving shell. Once the mud enters the receiving shell, a motor drives the receiving shell to rotate rapidly, discharging the mud from all sides. The mud then flows steadily down the inclined surface of the mud filter shell assembly, while a filter screen ensures filtration. The filtered mud flows into the main body of the mobile mud tank for storage, facilitating its use by an external circulation pump. The overflow shell is designed to be easily inserted into the borehole head to work in conjunction with the mud receiving shell assembly, achieving stable drainage of the drilling mud.

[0008] As a preferred embodiment, the main pool body includes an annular pool bottom, a polygonal inner frame, and an inclined arc-shaped outer shell. The polygonal inner frame and the arc-shaped outer shell are installed on both sides of the annular pool bottom, and the annular pool bottom, the polygonal inner frame, and the arc-shaped outer shell are integrally formed. A connecting shell is also fixedly installed on the arc-shaped outer shell, and a mixing shell is fixedly installed on the connecting shell. An external pipe is fixedly installed at the head of the mixing shell, and several adsorption tubes of different lengths are symmetrically installed on both sides of the mixing shell. The moving component includes a base plate shell, a connecting frame, and a set of moving wheels. The connecting frame is inserted into the polygonal inner frame, and the connecting frame is fixedly connected to the polygonal inner frame. The base plate shell is fixedly installed on the lower end face of the connecting frame. The set of moving wheels is installed on both sides of the base plate shell, and the set of moving wheels is rotatably connected to the base plate shell. A second motor for driving the set of moving wheels is also fixedly installed in the base plate shell.

[0009] By adopting the above technical solution, the main tank is designed with a structure consisting of an annular bottom, a polygonal inner frame, and an arc-shaped outer shell. For ease of use, the polygonal inner frame and arc-shaped outer shell can be installed on both sides of the annular bottom. This allows the annular bottom, polygonal inner frame, and arc-shaped outer shell to form a corresponding mud storage structure. During use, the polygonal inner frame can support the lower end of the mud filter shell assembly, while the arc-shaped outer shell is angled to better receive the mud left on the filter shell assembly. A connecting shell is fixedly installed on the arc-shaped outer shell to facilitate the installation of the mixing shell. The mixing shell is protected after installation within the connecting shell. An external connecting pipe is fixedly installed at the head of the mixing shell, allowing the suction port of the circulation pump to be connected to the external connecting pipe during use. The mixing shell is symmetrically positioned on both sides. Several adsorption tubes of varying lengths are installed so that when the circulating pump adsorbs mud from different locations in the main tank through the external pipe, the mud can be simultaneously adsorbed into the mixing shell through the adsorption tubes. Then, it enters the circulating pump through the external pipe, and the circulating pump injects the mud into the borehole. By designing the moving component as a structure in which the base shell, connecting frame, and moving wheel set cooperate, the base shell can be connected to the main tank through the connecting frame on the upper end for easy use. During installation, the connecting frame is inserted into the polygonal inner frame from the bottom end, and then the connecting frame and the polygonal inner frame are fixed together with bolts. In use, the four moving wheel sets on the base shell can drive the equipment to move in position, and each moving wheel set is controlled by a separate motor. In this way, the angle can be adjusted by the speed difference between different moving wheel sets.

[0010] As a preferred embodiment, the equipment platform includes a base and a movable frame. The base includes a main board, guide rods, and connecting plates. A hydraulic cylinder for driving the movable frame to rise and fall is fixedly installed at the center of the main board. The guide rods are installed at the four corners of the main board. The connecting plates are symmetrically installed at the middle of both sides of the main board. The main board, guide rods, and connecting plates are integrally formed. The movable frame includes an I-beam frame, a block support frame, and a side shaft frame for rotating and installing the mud filter shell assembly. A guide sleeve that slides with the guide rods is fixedly installed on the I-beam frame. The block support frame is fixedly installed at one end of the block support frame, and a matching groove that mates with the guide rods is provided on the block support frame. The side shaft frame is fixedly installed at the end of the I-beam frame away from the block support frame.

[0011] By adopting the above technical solutions, the equipment platform is designed as a structure that combines a base and a movable frame. When easy to use, the movable frame can be slidably installed via the base. The base is designed as a structure combining a main plate, guide rods, and connecting plates. When easy to use, the main plate can be fixedly installed within the polygonal inner frame of the main tank. Guide rods are fixedly installed at the four corners of the upper surface of the main plate, allowing the movable frame to slide freely during use. When height adjustment is needed, the movable frame can be raised and lowered using hydraulic cylinder two. The movable frame is designed as a structure combining an I-beam frame, a support block frame, and a side shaft frame. When easy to use, the I-beam frame supports hydraulic cylinder one. The support block frame on the I-beam frame provides support for the mud filter assembly without tilting it, ensuring greater stability during use. The two sets of side shaft frames facilitate the rotatable connection of the mud filter assembly, and the guide sleeve and matching groove facilitate sliding connection with the guide rods.

[0012] As a preferred embodiment, the mud filter shell assembly includes a polygonal ring frame, a platform shell, and a partition plate assembly. The lower end face of the polygonal ring frame is symmetrically provided with two sets of connecting lugs that are rotatably connected to the side shaft bracket. The connecting lugs are fixedly connected to the polygonal ring frame. The platform shell is fixedly installed on the upper end face of the polygonal ring frame, and the head of the platform shell is provided with a positioning groove for rotatably installing the slurry receiving shell. The platform shell has several drainage grooves connected to the positioning groove along its circumference. The partition plate assembly is evenly installed between the polygonal ring frame and the platform shell, and the partition plate assembly is fixedly connected to both the polygonal ring frame and the platform shell. The two sides of the partition plate assembly near the outer end are provided with snap-fit ​​plates for installing the filter screen frame. The snap-fit ​​plates are integrally formed with the partition plate assembly.

[0013] By adopting the above technical solution, the mud filter shell assembly is designed as a structure consisting of a polygonal ring frame, a platform shell, and a partition plate assembly. The platform shell is installed via the polygonal ring frame, ensuring stable downward flow of mud along its outer surface. Two sets of connecting lugs are symmetrically placed on the lower end of the polygonal ring frame for easy rotatable connection with the side shaft frame. A positioning groove at the head of the platform shell allows for stable rotation and installation of the receiving shell. Several drainage grooves are formed along the circumference of the platform shell, allowing mud to be stably discharged from the drainage groove to the outer surface of the platform shell when the receiving shell rotates. The partition plate assembly isolates the outer surface of the platform shell, ensuring better mud diversion and discharge. Clamping plates on both sides of the partition plate assembly clamp the ends of the filter screen frame, facilitating stable insertion and installation, and allowing for quick and easy removal during cleaning.

[0014] As a preferred embodiment, the filter frame includes a frame, a central mesh frame, and an auxiliary pressure plate. The two sides of the frame are snapped into the snap-fit ​​plate assembly, the central mesh frame is fixedly installed in the middle of the frame, and the auxiliary pressure plate is installed on the lower side of the front end face of the frame and is fixedly connected to the frame.

[0015] By adopting the above technical solution, the filter screen frame is designed as a structure in which the frame, the middle screen frame and the auxiliary pressure plate cooperate. When it is easy to use, the middle screen frame is fixedly installed in the frame frame. When it is easy to install, it can be fixed by inserting it into the snap-fit ​​plate assembly through the frame frame. When it is easy to use, the auxiliary pressure plate is fixedly installed at the front end of the frame frame to ensure better discharge of mud.

[0016] As a preferred embodiment, the receiving shell includes a shell base, a diverter plate, and an outer frame. The lower end face of the shell base is provided with a central shaft connected to an output shaft of the motor. The central shaft is fixedly connected to the shell base. The diverter plates are evenly installed on the upper end face of the shell base. The outer frame is sleeved on the outer end of the diverter plates, and both the diverter plates and the outer frame are fixedly connected to the shell base.

[0017] By adopting the above technical solution, the slurry receiving shell is designed as a structure in which the shell base, the diverting plate, and the outer frame cooperate. When easy to use, the shell base can be rotatably installed on the platform shell through the central shaft at the lower end. The central shaft passes through the platform shell and is connected to the motor, so that the motor can stably drive the slurry receiving shell to rotate. By fixing the diverting plate on the shell base, the slurry can be quickly pushed out from all sides after entering the slurry receiving shell through the rotating diverting plate. The outer frame ensures that the slurry receiving shell is more stable in the positioning groove. At the same time, the outer frame can also be used to initially filter the sand and gravel in the slurry.

[0018] As a preferred embodiment, the slurry diversion shell assembly includes a shell cover, an arc-shaped baffle, and a diversion inclined shell. The shell cover is fastened to the upper end face of the outer frame and is fixedly installed on the upper end face of the platform shell. A feed trough is provided at the center of the shell cover, and a bracket plate supporting the diversion inclined shell is fixedly installed on the upper end face of the shell cover. The arc-shaped baffle is evenly arranged on the outer side of the shell cover, and a flipping frame that rotates with the shell cover is fixedly installed at the head of the arc-shaped baffle. A limiting plate supporting the flipping frame is also fixedly installed on the lower end face of the shell cover. The diversion inclined shell includes an open guide shell and a slurry outlet head. The open guide shell is inclinedly fixed in the bracket plate, and the slurry outlet head is fixedly installed at the lower end of the guide shell, with the lower end of the slurry outlet head extending into the feed trough.

[0019] By adopting the above technical solution, the mud diversion shell assembly is designed as a structure consisting of a shell cover, an arc-shaped baffle, and a diversion inclined shell. For ease of use, the shell cover can be installed on the upper surface of the outer frame, thus limiting the position of the receiving shell and ensuring greater stability during rotation. Simultaneously, a flip-up arc-shaped baffle is installed on the outer surface of the shell cover. During installation, the arc-shaped baffle can be rotated and installed on the shell cover using a head-turning frame. Furthermore, an inlet trough is opened in the center of the shell cover to facilitate the stable flow of mud from the diversion inclined shell. Additionally, a support... The frame plate is designed to ensure the stable installation of the diversion inclined shell on the upper part of the shell cover. A limiting plate is fixedly installed on the lower end of the shell cover to provide auxiliary support after the tilting frame is tilted down. The diversion inclined shell is designed as an open guide shell and a slurry outlet head to cooperate with each other. During use, the open guide shell can be connected to the overflow shell. The upper part of the open guide shell is not open, which facilitates better cleaning after use. The slurry outlet head is designed to control the flow direction of the mud, ensuring that the mud can stably pass through the feed chute and enter the receiving shell.

[0020] As a preferred embodiment, the overflow shell includes a main shell and a secondary shell that is engaged with the main shell. The head of the main shell is equipped with a connector that mates with the open guide shell. The connector is integrally formed with the main shell. The secondary shell includes an outer arc shell and a locking inner plate that mates with the main shell. The locking inner plate is installed at both ends of the outer arc shell and is integrally formed with the outer arc shell. The head of the locking inner plate is provided with a connecting lug, which is integrally formed with the locking inner plate. A sealing strip is also installed between the main shell and the outer arc shell.

[0021] By adopting the above technical solution, the overflow shell is designed as a structure in which the main shell and the secondary shell cooperate. In ease of use, the main shell and the secondary shell can be interlocked to form a cylindrical shell structure, which can be directly inserted into the borehole head for use. A connector is installed at the head of the main shell, facilitating its cooperation with the open guide shell, ensuring that the mud level in the main shell reaches the connector and flows into the open guide shell. The secondary shell is designed as a structure in which an outer arc shell and a locking inner plate cooperate. In ease of use, the outer arc shell can be stably locked onto the main shell by the locking inner plates at both ends, achieving a stable connection. Connecting lugs are provided at the heads of the locking inner plates, allowing the main shell and secondary shell to be connected and locked with bolts after being spliced ​​together. Simultaneously, the sealing strip ensures a tighter connection between the main shell and the outer arc shell.

[0022] As a preferred embodiment, the overflow shell includes an outer insert shell and a converging inner shell fixedly installed in the outer insert shell. The outer insert shell includes a first half shell and a second half shell, which are snapped together. Connecting plug rods are installed on the first and second half shells. A mating head that mates with the open guide shell is installed at the head of the second half shell. The converging inner shell includes an inner half tube and an inner half tube, which are snapped together and fixedly connected by bolts. A drain shell corresponding to the mating head is provided at the head of the inner half tube, and a conical half shell is provided on the lower end face of both the inner half tube and the inner half tube.

[0023] By adopting the above technical solution, the overflow shell is designed as a structure in which an outer insert shell and a converging inner shell cooperate. When easy to install, it can be installed at the head of the borehole through the outer insert shell. At the same time, by installing the converging inner shell in the outer insert shell, the diameter of the mud discharge can be reduced, thereby facilitating the faster discharge of mud. Furthermore, by designing the outer insert shell as a structure in which the first half shell and the second half shell cooperate, it can be easily and flexibly installed by interlocking the first half shell and the second half shell when easy to use, and it will not interfere with the drill pipe, ensuring that the drill pipe can perform normal drilling operations.

[0024] A method for circulating slurry in cast-in-place piles includes the following steps:

[0025] S1: First, determine the drilling location, remove debris, and then install the drilling platform;

[0026] S2: Start the drilling setup to begin drilling operations. After drilling to the specified depth, install the overflow shell. After inserting and fixing the overflow shell to the head of the borehole, connect the drainage mud shell assembly.

[0027] S3: Adjust the position of the mobile mud pit according to the location of the borehole, and connect the drainage mud shell assembly and the overflow shell on the mobile mud pit through the moving component;

[0028] S4: Then connect the circulation pump, connecting the suction port and discharge port of the circulation pump to the mobile mud pit and the center of the drill rod of the drilling machine, respectively.

[0029] S5: Start the circulation pump to start the mud circulation operation.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] This application designs the mobile mud tank as a structure in which the main tank body and the mobile component work together. When in use, the position of the equipment can be flexibly adjusted through the mobile component. This makes it easy to adjust when drilling holes at different locations. Moreover, by installing an equipment platform in the main tank body, stable support for the mud filter shell assembly is ensured. At the same time, by designing the equipment platform as a base, movable frame, hydraulic cylinder one and hydraulic cylinder two working together, the height and angle of the mud filter shell assembly can be easily and flexibly adjusted. This allows for better flushing of the mud filter shell assembly when not in use, making it very convenient to use.

[0032] This application designs the mud filter shell assembly as a structure consisting of a polygonal ring frame, a platform shell, and a partition plate assembly. This ensures that the mud receiving shell can be installed through the polygonal ring frame during use, and the rotating mud receiving shell can quickly filter the mud, achieving rapid recycling. Furthermore, the mud ejected from the mud receiving shell can flow stably along the platform shell into the polygonal ring frame. The inclined surface ensures rapid mud flow, which is then quickly filtered by the filter screen frame on the polygonal ring frame. This dual filtration through the mud receiving shell and filter screen frame during construction ensures rapid reuse of the mud. The mud diversion shell assembly not only ensures a stable flow of mud into the mud receiving shell but also provides auxiliary shielding at the top of the mud receiving shell, allowing for better drainage from all sides. This lateral drainage ensures that the mud is evenly filtered through different filter screen frames, preventing concentrated filtration and filter screen blockage.

[0033] This application uses an overflow shell to facilitate direct insertion into the borehole head. The overflow shell, in conjunction with the mud guide shell assembly, can stably discharge the drilling mud. The overflow shell is designed as a two-part structure to ensure better installation and avoid interference with the drill pipe. At the same time, the inner converging shell ensures that the drilling mud can rise more quickly, making it easier to discharge the mud. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure in use in an embodiment of the present invention;

[0035] Figure 2 This is a perspective view of the overall structure in an embodiment of the present invention without the overflow shell installed;

[0036] Figure 3 yes Figure 2 An exploded view of the device shown.

[0037] Figure 4 This is a perspective view of the mobile mud pit in an embodiment of the present invention;

[0038] Figure 5 yes Figure 4 A front view of the device shown;

[0039] Figure 6 yes Figure 4 Top view of the device shown;

[0040] Figure 7 This is a perspective view of the moving component in an embodiment of the present invention;

[0041] Figure 8 This is an exploded view of the equipment platform in an embodiment of the present invention;

[0042] Figure 9 yes Figure 8 A front view of the device shown;

[0043] Figure 10 yes Figure 8 Side view of the device shown;

[0044] Figure 11 This is a perspective view of the filter frame in an embodiment of the present invention;

[0045] Figure 12 yes Figure 11 Side view of the device shown;

[0046] Figure 13 This is a perspective view of the mud filter shell assembly in an embodiment of the present invention;

[0047] Figure 14 yes Figure 13 Top view of the device shown;

[0048] Figure 15 yes Figure 13 A front view of the device shown;

[0049] Figure 16 This is a perspective view of the grout receiving shell in an embodiment of the present invention;

[0050] Figure 17 yes Figure 16 A front view of the device shown;

[0051] Figure 18 This is a perspective view of the drainage mud shell assembly in an embodiment of the present invention;

[0052] Figure 19 yes Figure 18 A front view of the device shown;

[0053] Figure 20 yes Figure 18 A bottom view of the device shown;

[0054] Figure 21 This is a perspective view of the overflow shell shown in Embodiment 1 of the present invention;

[0055] Figure 22 yes Figure 21 A front view of the device shown;

[0056] Figure 23 yes Figure 21 A bottom view of the device shown;

[0057] Figure 24 This is a perspective view of the overflow shell shown in Embodiment 2 of the present invention;

[0058] Figure 25 yes Figure 24 A front view of the device shown;

[0059] Figure 26 yes Figure 24 A three-dimensional view of the flow-gathering inner shell shown in the figure;

[0060] Figure 27 yes Figure 24 Top view of the device shown.

[0061] In the diagram: 1. Mobile mud tank; 11. Main tank body; 111. Circular tank bottom; 112. Polygonal inner frame; 113. Arc-shaped outer shell; 114. Connecting shell; 115. Mixing shell; 116. External pipe; 117. Adsorption pipe; 12. Mobile assembly; 121. Seat plate shell; 122. Connecting frame; 123. Mobile wheel set; 124. Motor II; 2. Equipment platform; 20. Hydraulic cylinder I; 21. Platform; 210. Hydraulic cylinder II; 2 11. Main board; 212. Guide slide rod; 213. Connecting bend plate; 22. Movable frame; 221. I-beam frame; 222. Support block frame; 223. Side shaft frame; 224. Guide sleeve; 225. Matching slide groove; 3. Mud filter shell assembly; 30. Motor 1; 31. Polygonal ring frame; 311. Connecting ear seat; 32. Platform shell; 321. Positioning groove; 322. Drainage groove; 33. Divider plate assembly; 331. Snap-fit ​​plate assembly; 4. Filter screen frame 41. Frame; 42. Central grid frame; 43. Auxiliary pressure plate; 5. Slurry receiving shell; 51. Shell base; 511. Central shaft; 52. Diverting plate; 53. Outer frame; 6. Slurry diversion shell assembly; 61. Shell cover; 611. Feed chute; 612. Support plate; 613. Limiting plate; 62. Arc-shaped baffle; 621. Tilting frame; 63. Slurry diversion inclined shell; 631. Opening guide shell; 632. Slurry outlet head; 7. Overflow shell; 71. Main shell 711. Connector; 72. Secondary housing; 721. Outer arc housing; 722. Engaging inner plate; 723. Connecting top lug; 73. Sealing strip; 701. Outer insert housing; 7011. First half-shell; 7012. Second half-shell; 7013. Insert rod assembly; 7014. Mating head; 702. Converging inner shell; 7021. Inner half-pipe one; 7022. Inner half-pipe two; 7023. Drain housing; 7024. Conical half-shell; 8. Drilling hole. Detailed Implementation

[0062] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0063] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0064] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0065] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0066] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0067] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention. Example

[0068] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a mud circulation device for underwater row-and-row cast-in-place piles includes a mobile mud tank 1 and an overflow shell 7 installed in the borehole. The mobile mud tank 1 includes a main tank body 11 and a moving assembly 12. The moving assembly 12 is fixedly installed on the lower end face of the main tank body 11. An equipment platform 2 is provided in the middle of the main tank body 11. The equipment platform 2 is fixedly connected to the main tank body 11, and a mud filter shell assembly 3 is installed on the upper end face of the equipment platform 2. One end of the mud filter shell assembly 3 is rotatably connected to the equipment platform 2, and an adjusting mud is installed on the equipment platform 2. The filter housing assembly 3 uses a hydraulic cylinder 20 with an angle. Several filter screen frames 4 are installed along the circumferential direction at the edge of the mud filter housing assembly 3. The filter screen frames 4 are inserted and fixed to the mud filter housing assembly 3. A slurry receiving shell 5 is also rotatably installed at the center of the mud filter housing assembly 3. A motor 30 that drives the slurry receiving shell 5 to rotate is fixedly installed in the mud filter housing assembly 3. A slurry diversion shell assembly 6 is installed on the upper end face of the mud filter housing assembly 3. One end of the slurry diversion shell assembly 6 is connected to the overflow shell 7, and the other end of the slurry diversion shell assembly 6 is fixedly connected to the mud filter housing assembly 3. By designing the mobile mud tank 1 as a structure with a main tank body 11 and a moving component 12, the main tank body 11 can serve as a mud storage structure when easy to use, ensuring mud supply to the mud circulation device during mud circulation. Furthermore, by installing the moving component 12 at the lower end of the main tank body 11, the usage position can be flexibly adjusted during use. An equipment platform 2 is set in the middle of the main tank body 11, which supports the installation of the mud filter shell assembly 3, ensuring that the height of the mud filter shell assembly 3 can be adjusted during use. Simultaneously, the hydraulic cylinder 20 allows for adjustment of the usage angle. The mud filter shell assembly 3 stably mounts the mud receiving shell 5, ensuring... In use, the mud in the borehole can be received by the mud diversion shell assembly 6, and the discharged mud can be stably introduced into the mud receiving shell 5. After the mud enters the mud receiving shell 5, the mud receiving shell 5 can be driven to rotate rapidly by the motor 30. The rotating mud receiving shell 5 discharges the mud from all sides, and the mud can flow steadily down the slope of the mud filter shell assembly 3. At the same time, the filter screen frame 4 is set to ensure that the mud is filtered, and the filtered mud can flow into the main pool 11 of the mobile mud tank 1 for storage, which is convenient for external circulation pump to adsorb and use. The overflow shell 7 is set to be easily inserted into the head of the borehole and cooperate with the mud diversion shell assembly 6 to achieve stable diversion and use of the mud in the borehole.

[0069] Reference Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the main pool body 11 includes an annular pool bottom 111, a polygonal inner frame 112, and an inclined arc-shaped outer shell 113. The polygonal inner frame 112 and the arc-shaped outer shell 113 are installed on both sides of the annular pool bottom 111, and the annular pool bottom 111, the polygonal inner frame 112, and the arc-shaped outer shell 113 are integrally formed. A connecting shell 114 is also fixedly installed on the arc-shaped outer shell 113, and a mixing shell 115 is fixedly installed on the connecting shell 114. An external pipe 116 is fixedly installed at the head of the mixing shell 115, and symmetrical pipes are installed on both sides of the mixing shell 115. The assembly 12 includes a number of adsorption tubes 117 of varying lengths and a moving component 12, which includes a base shell 121, a connecting frame 122, and a set of moving wheels 123. The connecting frame 122 is inserted into the polygonal inner frame 112 and is fixedly connected to the polygonal inner frame 112. The base shell 121 is fixedly installed on the lower end face of the connecting frame 122. The set of moving wheels 123 is installed on both sides of the base shell 121 and is rotatably connected to the base shell 121. A motor 124 for driving the moving wheels 123 to rotate is also fixedly installed in the base shell 121.By designing the main tank 11 as a structure consisting of an annular bottom 111, a polygonal inner frame 112, and an arc-shaped outer shell 113, the polygonal inner frame 112 and the arc-shaped outer shell 113 can be installed on both sides of the annular bottom 111 for ease of use. This allows the annular bottom 111, polygonal inner frame 112, and arc-shaped outer shell 113 to form a corresponding mud storage structure. During use, the polygonal inner frame 112 can be supported on the lower end face of the mud filter shell assembly 3, while the arc-shaped outer shell 113 is inclined to ensure... To better receive the slurry left on the mud filter shell assembly 3, a connecting shell 114 is fixedly installed on the arc-shaped outer shell 113. This ensures that the mixing shell 115 can be installed through the connecting shell 114, and the mixing shell 115 is protected after being installed in the connecting shell 114. An external connecting pipe 116 is fixedly installed on the head of the mixing shell 115, so that the suction port of the circulation pump can be connected to the external connecting pipe 116 through a pipeline during use. Furthermore, symmetrical installations are made on both sides of the mixing shell 115... Several adsorption tubes 117 of varying lengths are used so that when the circulating pump adsorbs through the external pipe 116, the mud at different locations in the main tank 11 can be simultaneously adsorbed into the mixing shell 115 through the adsorption tubes 117. Then, it enters the circulating pump through the external pipe 116 and is injected into the borehole by the circulating pump. By designing the moving component 12 as a structure in which the base shell 121, the connecting frame 122, and the moving wheel set 123 cooperate, the base shell 121 can be connected to the main tank 11 through the connecting frame 122 on the upper end when it is easy to use. During installation, the connecting frame 122 is inserted into the polygonal inner frame 112 from the lower end, and then the connecting frame 122 and the polygonal inner frame 112 are fixed together with bolts. In use, the four moving wheel sets 123 on the base shell 121 can drive the equipment to move in position. Moreover, each moving wheel set 123 is controlled by a separate motor 124. In use, the angle can be adjusted by the speed difference between different moving wheel sets 123.

[0070] Reference Figure 8 , Figure 9 and Figure 10As shown, the equipment platform 2 includes a base 21 and a movable frame 22. The base 21 includes a main board 211, guide slide rods 212, and connecting bent plates 213. A hydraulic cylinder 210 for driving the movable frame 22 to rise and fall is fixedly installed at the center of the main board 211. The guide slide rods 212 are installed at the four corners of the main board 211. The connecting bent plates 213 are symmetrically installed at the middle of both sides of the main board 211. The main board 211, guide slide rods 212, and connecting bent plates 213 are integrally formed. The movable frame 22 includes an I-beam frame 221, a block support frame 222, and a side shaft frame 223 for rotatably mounting the mud filter shell assembly 3. A guide sleeve 224 that slides with the guide slide rod 212 is fixedly installed on the I-beam frame 221. The block support frame 222 is fixedly installed at one end of the block support frame 222, and a matching groove 225 that matches the guide slide rod 212 is opened on the block support frame 222. The side shaft frame 223 is fixedly installed at the end of the I-beam frame 221 away from the block support frame 222. By designing the equipment platform 2 as a structure in which a base 21 and a movable frame 22 cooperate, the movable frame 22 can be slidably installed via the base 21 when easy to use. Simultaneously, by designing the base 21 as a structure in which a main plate 211, guide rods 212, and connecting elbows 213 cooperate, the main plate 211 can be fixedly installed in the polygonal inner frame 112 of the main tank body 11 when easy to use. Furthermore, by fixing guide rods 212 to the four corners of the upper surface of the main plate 211, the movable frame 22 can be slidably installed via the guide rods 212 when easy to use. Thus, when height adjustment is required, it can be achieved via hydraulic cylinder 213. The movable frame 22 is raised and lowered by the control of the 10. The movable frame 22 is designed as a structure in which the I-beam frame 221, the support block frame 222 and the side shaft frame 223 cooperate. When it is easy to use, the hydraulic cylinder 20 can be supported by the I-beam frame 221. The support block frame 222 is set on the I-beam frame 221 to support the mud filter shell assembly 3 when it is not flipped, so as to ensure that the mud filter shell assembly 3 is more stable during use. The two sets of side shaft frames 223 are set to facilitate the rotation connection of the mud filter shell assembly 3. The guide sleeve 224 and the matching slide groove 225 are set to facilitate the sliding connection with the guide slide rod 212.

[0071] Reference Figure 13 , Figure 14 and Figure 15As shown, the mud filter shell assembly 3 includes a polygonal ring frame 31, a platform shell 32, and a partition plate assembly 33. The lower end face of the polygonal ring frame 31 is symmetrically provided with two sets of connecting lugs 311 that are rotatably connected to the side shaft bracket 223. The connecting lugs 311 are fixedly connected to the polygonal ring frame 31. The platform shell 32 is fixedly installed on the upper end face of the polygonal ring frame 31, and the head of the platform shell 32 is provided with a positioning groove 321 for the rotatable installation of the slurry receiving shell 5. The platform shell 32 is provided with several drainage grooves 322 connected to the positioning grooves 321 along the circumferential direction. The partition plate assembly 33 is evenly installed between the polygonal ring frame 31 and the platform shell 32, and the partition plate assembly 33 is fixedly connected to both the polygonal ring frame 31 and the platform shell 32. The two sides of the partition plate assembly 33 near the outer end are provided with snap-fit ​​plate assemblies 331 for the installation of the filter screen frame 4. The snap-fit ​​plate assembly 331 and the partition plate assembly 33 are integrally formed. By designing the mud filter shell assembly 3 into a structure consisting of a polygonal ring frame 31, a platform shell 32, and a partition plate assembly 33, the platform shell 32 can be installed via the polygonal ring frame 31 during use. The platform shell 32 ensures that the mud can flow stably downwards along its outer surface during use. Two sets of connecting lugs 311 are symmetrically arranged on the lower end face of the polygonal ring frame 31, allowing for rotatable connection with the side shaft bracket 223 during use. A positioning groove 321 is provided at the head of the platform shell 32, facilitating stable rotation of the mud receiving shell 5 during use. It is installed in the positioning groove 321 for use. At the same time, by opening several drainage grooves 322 along the circumferential direction on the platform shell 32, the mud can be stably discharged from the drainage shell 7023 to the outer surface of the platform shell 32 when the mud receiving shell 5 rotates. Meanwhile, the partition plate group 33 is set to ensure that the outer surface of the platform shell 32 is isolated, so that the mud can be better diverted and discharged. By setting the snap-fit ​​plate group 331 on both sides of the partition plate group 33, it is convenient to use to clamp the two ends of the filter screen frame 4, so that the filter screen frame 4 can be stably inserted and installed, and it is also convenient to remove it quickly during cleaning.

[0072] Reference Figure 11 and Figure 12 As shown, the filter screen frame 4 includes a frame 41, a middle screen frame 42, and an auxiliary pressure plate 43. The two sides of the frame 41 are snapped into the snap-fit ​​plate assembly 331. The middle screen frame 42 is fixedly installed in the middle of the frame 41. The auxiliary pressure plate 43 is installed on the lower side of the front end face of the frame 41 and is fixedly connected to the frame 41. By designing the filter screen frame 4 into a structure in which the frame 41, the middle screen frame 42, and the auxiliary pressure plate 43 cooperate, the middle screen frame 42 is fixedly installed in the frame 41 for easy use. This allows the frame 41 to be inserted into the snap-fit ​​plate assembly 331 for easy installation. By fixing the auxiliary pressure plate 43 to the front end of the frame 41, the auxiliary pressure plate 43 ensures better slurry discharge during use.

[0073] Reference Figure 16 and Figure 17 As shown, the receiving shell 5 includes a shell base 51, a diverter plate 52, and an outer frame 53. The lower end face of the shell base 51 is provided with a central shaft 511 connected to the output shaft of the motor 30. The central shaft 511 is fixedly connected to the shell base 51. The diverter plates 52 are evenly installed on the upper end face of the shell base 51. The outer frame 53 is sleeved on the outer end of the diverter plates 52, and both the diverter plates 52 and the outer frame 53 are fixedly connected to the shell base 51. By designing the receiving shell 5 as a structure in which the shell base 51, the diverting plate 52, and the outer frame 53 cooperate, the shell base 51 can be rotated and mounted on the platform shell 32 through the central shaft 511 at the lower end when it is easy to use. The central shaft passes through the platform shell 32 and is connected to the motor 30, so that the motor 30 can stably drive the receiving shell 5 to rotate. By fixing the diverting plate 52 on the shell base 51, the mud can be quickly pushed out from all sides after entering the receiving shell 5 through the rotating diverting plate 52. The outer frame 53 ensures that the receiving shell 5 is more stable in the positioning groove 321. At the same time, the outer frame 53 can also be used to initially filter the sand and gravel in the mud.

[0074] Reference Figure 18 , Figure 19 and Figure 20As shown, the slurry drainage shell assembly 6 includes a shell cover 61, an arc-shaped baffle 62, and a drainage inclined shell 63. The shell cover 61 is fastened to the upper end face of the outer frame 53 and is fixedly installed on the upper end face of the platform shell 32. A feed chute 611 is provided at the center of the shell cover 61, and a bracket plate 612 supporting the drainage inclined shell 63 is fixedly installed on the upper end face of the shell cover 61. The arc-shaped baffles 62 are evenly arranged on the outer side of the shell cover 61, and the arc-shaped baffles... The head of the plate 62 is fixedly installed with a flipping frame 621 that rotates with the shell cover 61. The lower end face of the shell cover 61 is also fixedly installed with a limiting plate 613 that supports the flipping frame 621. The flow guide shell 63 includes an open flow guide shell 631 and a slurry outlet head 632. The open flow guide shell 631 is fixedly inclined in the bracket plate 612. The slurry outlet head 632 is fixedly installed at the lower end of the flow guide shell, and the lower end of the slurry outlet head 632 extends into the feed trough 611. By designing the slurry diversion shell assembly 6 as a structure consisting of a shell cover 61, an arc-shaped baffle 62, and a diversion inclined shell 63, it is easy to use. The shell cover 61 can be installed on the upper surface of the outer frame 53 to limit the position of the receiving shell 5, ensuring greater stability during rotation. Simultaneously, a flip-up arc-shaped baffle 62 is installed on the outer surface of the shell cover 61. During installation, the arc-shaped baffle 62 can be rotated and installed on the shell cover 61 via a head flipping frame 621. An inlet trough 611 is opened at the center of the shell cover 61 to facilitate stable flow of slurry from the diversion inclined shell 63. Furthermore, the bracket plate 612 is used to... To ensure the stable installation of the diversion inclined shell 63 on the upper end of the shell cover 61, a limiting plate 613 is fixedly installed on the lower end face of the shell cover 61. This ensures that after the tilting frame 621 is tilted down, it can be supported by the limiting plate 613. The diversion inclined shell 63 is designed as a structure in which the open guide shell 631 and the slurry outlet head 632 cooperate. This ensures that it can be connected to the overflow shell 7 through the open guide shell 631 during use. The upper end of the open guide shell 631 is not open, which facilitates better cleaning after use. The slurry outlet head 632 is set to control the flow direction of the slurry, ensuring that the slurry can stably pass through the feed trough 611 and enter the slurry receiving shell 5.

[0075] Reference Figure 21 , Figure 22 and Figure 23As shown, the overflow shell 7 includes a main shell 71 and a secondary shell 72 that is engaged with the main shell 71. The head of the main shell 71 is equipped with a connector 711 that mates with the opening guide shell 631. The connector 711 is integrally formed with the main shell 71. The secondary shell 72 includes an outer arc shell 721 and a locking inner plate 722 that mates with the main shell 71. The locking inner plate 722 is installed at both ends of the outer arc shell 721 and is integrally formed with the outer arc shell 721. The head of the locking inner plate 722 is provided with a connecting lug 723, which is integrally formed with the locking inner plate 722. A sealing strip 73 is also installed between the main shell 71 and the outer arc shell 721. By designing the overflow shell 7 as a structure in which the main shell 71 and the secondary shell 72 cooperate, it can be easily used by interlocking the main shell 71 and the secondary shell 72 to form a cylindrical shell structure, which can be directly inserted into the head of the borehole. A connector 711 is installed at the head of the main shell 71, which cooperates with the open guide shell 631, ensuring that the mud in the main shell 71 flows into the open guide shell 631 after reaching the connector 711. The secondary shell 72 is designed as a structure in which the outer arc shell 721 and the engaging inner plate 722 cooperate, allowing the outer arc shell 721 to be stably engaged with the main shell 71 by the engaging inner plates 722 at both ends, achieving a stable connection. A connecting lug 723 is provided at the head of the engaging inner plate 722, allowing the main shell 71 and the secondary shell 72 to be connected and locked together with bolts. The sealing strip 73 further ensures a tighter connection between the main shell 71 and the outer arc shell 721.

[0076] Working principle: During processing, the overflow shell 7 can be divided into two parts: a main shell 71 and a secondary shell 72. These two parts are then fitted onto the drill pipe and secured together with bolts. After securing, the overflow shell 7 is inserted into the head of the borehole for use. The position of the movable mud tank 1 is adjusted using the moving component 12. Adjusting the position of the movable mud tank 1 changes the position and angle of the open guide shell 631, ensuring that the head of the open guide shell 631 mates with the connector 711 on the overflow shell 7. Once the head of the open guide shell 631 is connected to the connector 711, it can be used normally. Simultaneously, the outlet of the circulation pump is connected to the center of the drill pipe, and the circulation pump... The suction port is connected to the outer pipe 116 of the mixing shell 115, so that the circulation pump can be started during the drilling operation. This ensures that the circulation pump adsorbs mud from the main tank 11 of the mobile mud tank 1 and sprays it into the borehole. As the mud is poured into the borehole, it can carry out the sand and gravel in the borehole. Then, it overflows from the connector 711 of the overflow shell 7 and flows into the receiving shell 5 through the mud guide shell group 6. At the same time, the motor 30 is started to drive the receiving shell 5 to rotate. The receiving shell 5 throws the mud into the surrounding drainage channel 322 and flows into the outer surface of the platform shell 32 through the obstruction of the arc baffle 62. Finally, it flows into the main tank 11 for the circulation pump to adsorb after being filtered by the filter screen frame 4. Example

[0077] Reference Figure 1 , Figure 2 , Figure 3 and Figure 24 As shown, a mud circulation device for underwater row-and-row cast-in-place piles includes a mobile mud tank 1 and an overflow shell 7 installed in the borehole. The mobile mud tank 1 includes a main tank body 11 and a moving assembly 12. The moving assembly 12 is fixedly installed on the lower end face of the main tank body 11. An equipment platform 2 is provided in the middle of the main tank body 11. The equipment platform 2 is fixedly connected to the main tank body 11, and a mud filter shell assembly 3 is installed on the upper end face of the equipment platform 2. One end of the mud filter shell assembly 3 is rotatably connected to the equipment platform 2, and an adjusting mud is installed on the equipment platform 2. The filter housing assembly 3 uses a hydraulic cylinder 20 with an angle. Several filter screen frames 4 are installed along the circumferential direction at the edge of the mud filter housing assembly 3. The filter screen frames 4 are inserted and fixed to the mud filter housing assembly 3. A slurry receiving shell 5 is also rotatably installed at the center of the mud filter housing assembly 3. A motor 30 that drives the slurry receiving shell 5 to rotate is fixedly installed in the mud filter housing assembly 3. A slurry diversion shell assembly 6 is installed on the upper end face of the mud filter housing assembly 3. One end of the slurry diversion shell assembly 6 is connected to the overflow shell 7, and the other end of the slurry diversion shell assembly 6 is fixedly connected to the mud filter housing assembly 3.

[0078] Reference Figure 24 , Figure 25 , Figure 26 and Figure 27As shown, the overflow shell 7 includes an outer shell 701 and a converging inner shell 702 fixedly installed in the outer shell 701. The outer shell 701 includes a first half-shell 7011 and a second half-shell 7012, which are snapped together. Connecting plug rods 7013 are installed on the first half-shell 7011 and the second half-shell 7012. The head of the second half-shell 7012 is fitted with a fitting that mates with the opening guide shell 631. The head 7014 and the converging inner shell 702 include an inner half-pipe 1 7021 and an inner half-pipe 2 7022, which are interlocked and fixedly connected by bolts. The head of the inner half-pipe 1 7021 is provided with a drain shell 7023 corresponding to the mating head 7014, and the lower end face of both the inner half-pipe 1 7021 and the inner half-pipe 2 7022 is provided with a conical half-shell 7024. By designing the overflow shell 7 as a structure in which the outer insert shell 701 and the converging inner shell 702 cooperate, it is easy to install by using the outer insert shell 701 to install it at the head of the borehole. At the same time, by installing the converging inner shell 702 in the outer insert shell 701, the diameter of the mud discharge can be reduced, thereby facilitating the faster discharge of mud. Furthermore, by designing the outer insert shell 701 as a structure in which the first half shell 7011 and the second half shell 7012 cooperate, it is easy to use by using the first half shell 7011 and the second half shell 7012 to interlock with each other. This makes the installation more convenient and flexible, and will not interfere with the drill pipe, ensuring that the drill pipe can perform normal drilling operations.

[0079] Working principle: During the actual installation of the overflow shell 7, the first half-shell 7011 and the second half-shell 7012 are separated from each other. After clamping the first half-shell 7011 and the second half-shell 7012 onto the drill pipe, they can be interlocked together. Then, two sets of insertion rods 7013 are used to lock the first half-shell 7011 and the second half-shell 7012 together. After fixing, the first half-shell 7011 and the second half-shell 7012 can be inserted into the head of the drill hole. Then, in the... A flow-gathering inner shell 702 is installed between half shell 7011 and the second half shell 7012. After the inner half tube 7021 and the inner half tube 7022 are fastened together, they can be inserted into the outer shell 701. The drain shell 7023 is then engaged in the mating head 7014. In this way, when the drilling mud enters the overflow shell 7, it can enter the flow-gathering inner shell 702 through the conical half shell 7024 and finally enter the mating head 7014 through the drain shell 7023.

[0080] A method for circulating slurry in cast-in-place piles includes the following steps:

[0081] S1: First, determine the drilling location, remove debris, and then install the drilling platform;

[0082] S2: Start the drilling setup to begin drilling operations. After drilling to the specified depth, install the overflow shell. After inserting and fixing the overflow shell to the head of the borehole, connect the drainage mud shell assembly.

[0083] S3: Adjust the position of the mobile mud pit according to the location of the borehole, and connect the drainage mud shell assembly and the overflow shell on the mobile mud pit through the moving component;

[0084] S4: Then connect the circulation pump, connecting the suction port and discharge port of the circulation pump to the mobile mud pit and the center of the drill rod of the drilling machine, respectively.

[0085] S5: Start the circulation pump to start the mud circulation operation.

[0086] The above are preferred embodiments of the present invention. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A mud circulation device for underwater row-and-row cast-in-place piles, comprising a mobile mud tank (1) and an overflow shell (7) installed in the borehole, characterized in that: The mobile mud tank (1) includes a main tank body (11) and a mobile assembly (12). The mobile assembly (12) is fixedly installed on the lower end face of the main tank body (11). An equipment platform (2) is provided in the middle of the main tank body (11). The equipment platform (2) is fixedly connected to the main tank body (11), and a mud filter shell assembly (3) is installed on the upper end face of the equipment platform (2). One end of the mud filter shell assembly (3) is rotatably connected to the equipment platform (2), and a hydraulic cylinder (20) for adjusting the angle of the mud filter shell assembly (3) is installed on the equipment platform (2). Several filter screen frames (4) are installed along the circumferential direction at the edge of the mud filter shell assembly (3). The filter screen frames (4) are inserted and fixed to the mud filter shell assembly (3). At the center of the mud filter shell assembly (3) The equipment platform (2) is equipped with a slurry receiving shell (5) and a motor (30) for driving the slurry receiving shell (5) to rotate is fixedly installed in the mud filter shell group (3). A slurry diversion shell group (6) is installed on the upper end face of the mud filter shell group (3). One end of the slurry diversion shell group (6) is connected to the overflow shell (7), and the other end of the slurry diversion shell group (6) is fixedly connected to the mud filter shell group (3). The equipment platform (2) includes a base (21) and a movable frame (22). The base (21) includes a main board (211), a guide slide rod (212), and a connecting bend plate (213). A hydraulic cylinder (210) for driving the movable frame (22) to rise and fall is fixedly installed at the center of the main board (211). The guide slide rod (212) is installed on the main board. The four corners of the plate part (211) are symmetrically installed with connecting bent plates (213) on the middle of both sides of the main plate part (211). The main plate part (211), guide slide rod (212) and connecting bent plates (213) are integrally formed. The movable frame (22) includes an I-beam frame (221), a block support frame (222) and a side shaft frame (223) for rotating the mud filter shell assembly (3). The I-beam frame (221) is fixedly installed with a guide sleeve (224) that slides with the guide slide rod (212). The block support frame (222) is fixedly installed at one end of the block support frame (222), and the block support frame (222) is provided with a matching groove (225) that matches the guide slide rod (212). The side shaft frame (223) The mud filter shell assembly (3) is fixedly installed at the end of the I-beam frame (221) away from the support block frame (222). The mud filter shell assembly (3) includes a polygonal ring frame (31), a platform shell (32), and a partition plate assembly (33). The lower end face of the polygonal ring frame (31) is symmetrically provided with two sets of connecting lugs (311) that are rotatably connected to the side shaft frame (223). The connecting lugs (311) are fixedly connected to the polygonal ring frame (31). The platform shell (32) is fixedly installed on the upper end face of the polygonal ring frame (31), and the head of the platform shell (32) is provided with a positioning groove (321) for the slurry receiving shell (5) to be rotatably installed. The platform shell (32) has several drainage grooves (322) connected to the positioning grooves (321) along the circumferential direction.The partition plate assembly (33) is evenly installed between the polygonal ring frame (31) and the platform shell (32), and the partition plate assembly (33) is fixedly connected to both the polygonal ring frame (31) and the platform shell (32). The partition plate assembly (33) has snap-fit ​​plate assemblies (331) on both sides near its outer end for mounting the filter screen frame (4). The snap-fit ​​plate assemblies (331) are integrally formed with the partition plate assembly (33).

2. The mud circulation device for underwater continuous-row cast-in-place piles according to claim 1, characterized in that: The main pool body (11) includes an annular pool bottom (111), a polygonal inner frame (112), and an inclined arc-shaped outer shell (113). The polygonal inner frame (112) and the arc-shaped outer shell (113) are installed on both sides of the annular pool bottom (111), and the annular pool bottom (111), the polygonal inner frame (112), and the arc-shaped outer shell (113) are integrally formed. A connecting shell (114) is also fixedly installed on the arc-shaped outer shell (113), and a mixing shell (115) is fixedly installed on the connecting shell (114). An outer pipe (116) is fixedly installed at the head of the mixing shell (115), and several long pipes are symmetrically installed on both sides of the mixing shell (115). The suction tubes of varying lengths (117) are used. The moving component (12) includes a seat shell (121), a connecting frame (122), and a set of moving wheels (123). The connecting frame (122) is inserted into the polygonal inner frame (112) and is fixedly connected to the polygonal inner frame (112). The seat shell (121) is fixedly installed on the lower end face of the connecting frame (122). The set of moving wheels (123) is installed on both sides of the seat shell (121) and is rotatably connected to the seat shell (121). A second motor (124) for driving the moving wheels (123) to rotate is also fixedly installed in the seat shell (121).

3. The mud circulation device for underwater continuous-row cast-in-place piles according to claim 2, characterized in that: The filter frame (4) includes a frame (41), a middle screen frame (42), and an auxiliary pressure plate (43). The two sides of the frame (41) are snapped into the snap-fit ​​plate assembly (331). The middle screen frame (42) is fixedly installed in the middle of the frame (41). The auxiliary pressure plate (43) is installed on the lower side of the front end face of the frame (41) and is fixedly connected to the frame (41).

4. A mud circulation device for underwater continuous-row cast-in-place piles according to claim 3, characterized in that: The receiving shell (5) includes a shell base (51), a diverter plate (52), and an outer frame (53). The lower end face of the shell base (51) is provided with a central shaft (511) connected to the output shaft of motor (30). The central shaft (511) is fixedly connected to the shell base (51). The diverter plate (52) is evenly installed on the upper end face of the shell base (51). The outer frame (53) is sleeved on the outer end of the diverter plate (52), and both the diverter plate (52) and the outer frame (53) are fixedly connected to the shell base (51).

5. A mud circulation device for underwater continuous-row cast-in-place piles according to claim 4, characterized in that: The slurry drainage shell assembly (6) includes a shell cover (61), an arc-shaped baffle (62), and a sloping drainage shell (63). The shell cover (61) is fastened to the upper end face of the outer frame (53), and the shell cover (61) is fixedly installed on the upper end face of the platform shell (32). A feed trough (611) is provided at the center of the shell cover (61), and a bracket plate (612) supporting the sloping drainage shell (63) is fixedly installed on the upper end face of the shell cover (61). The arc-shaped baffle (62) is evenly arranged on the outer side of the shell cover (61), and the arc-shaped baffle (62) is... The head of the shell (61) is fixedly installed with a flipping frame (621) that rotates with the shell cover (61). The lower end face of the shell cover (61) is also fixedly installed with a limiting plate (613) that supports the flipping frame (621). The flow guide shell (63) includes an open flow guide shell (631) and a slurry outlet head (632). The open flow guide shell (631) is fixedly inclined in the bracket plate (612). The slurry outlet head (632) is fixedly installed at the lower end of the open flow guide shell (631), and the lower end of the slurry outlet head (632) extends into the feed trough (611).

6. A mud circulation device for underwater continuous-row cast-in-place piles according to claim 2, characterized in that: The overflow shell (7) includes a main shell (71) and a secondary shell (72) that is engaged with the main shell (71). The head of the main shell (71) is equipped with a connector (711) that cooperates with the opening guide shell (631). The connector (711) is integrally formed with the main shell (71). The secondary shell (72) includes an outer arc shell (721) and a locking inner plate (722) that cooperates with the main shell (71). The locking inner plate (722) is installed at both ends of the outer arc shell (721) and is integrally formed with the outer arc shell (721). The head of the locking inner plate (722) is provided with a connecting top ear (723). The connecting top ear (723) is integrally formed with the locking inner plate (722). A sealing strip (73) is also installed between the main shell (71) and the outer arc shell (721).

7. A mud circulation device for underwater continuous-row cast-in-place piles according to claim 2, characterized in that: The overflow shell (7) includes an outer shell (701) and a converging inner shell (702) fixedly installed in the outer shell (701). The outer shell (701) includes a first half-shell (7011) and a second half-shell (7012). The first half-shell (7011) and the second half-shell (7012) are fastened to each other, and the first half-shell (7011) and the second half-shell (7012) are equipped with connected plug rod assemblies (7013). The head of the second half-shell (7012) is equipped with a fitting that mates with the open guide shell (631). The head (7014) and the flow-gathering inner shell (702) include an inner half-pipe one (7021) and an inner half-pipe two (7022), which are fastened to each other and are fixedly connected by bolts. The head of the inner half-pipe one (7021) is provided with a drain shell (7023) corresponding to the mating head (7014), and the lower end face of the inner half-pipe one (7021) and the inner half-pipe two (7022) are both provided with a conical half-shell (7024).

8. A method for circulating slurry in cast-in-place piles using the slurry circulation device described in any one of claims 1-7, characterized in that, Includes the following steps: S1: First, determine the drilling location, remove debris, and then install the drilling platform; S2: Start the drilling setup to begin drilling operations. After drilling to the specified depth, install the overflow shell. After inserting and fixing the overflow shell to the head of the borehole, connect the drainage mud shell assembly. S3: Adjust the position of the mobile mud pit according to the location of the borehole, and connect the drainage mud shell assembly and the overflow shell on the mobile mud pit through the moving component; S4: Then connect the circulation pump, connecting the suction port and discharge port of the circulation pump to the mobile mud pit and the center of the drill rod of the drilling machine, respectively. S5: Start the circulation pump to start the mud circulation operation.

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