Three-dimensional stirring wall forming device

Abstract

The utility model discloses a three-dimensional stirring wall forming device in the technical field of foundation treatment. The three-dimensional stirring wall forming device comprises a frame body, two support plates; the plurality of stirring mechanisms are sequentially arranged at intervals left and right, each stirring mechanism comprises a drill rod which is vertically and rotatably mounted in the accommodating cavity, a rotary drill bit mounted at the bottom of the drill rod, and a plurality of outer digging modules which are arranged on the drill rod at intervals up and down; the three-dimensional stirring module comprises two stirring units which are installed on the supporting plates in a one-to-one correspondence mode, and the transmission unit is installed on the drill rod; the driving mechanism is mounted at the top of the frame body and is in transmission connection with the plurality of stirring mechanisms; the full-wall three-dimensional stirring device is used for full-wall three-dimensional stirring, stirring is more thorough and uniform, the necking, layering and slurry overflowing phenomena of a traditional stirring pile diaphragm wall are avoided, the cement mixing amount of the wall is guaranteed, and meanwhile the overall quality of the wall is improved in a large range; and the multiple stirring mechanisms are supported through the frame body and the supporting plate, so that the thickness of the wall body is ensured, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation anti-seepage treatment, in particular to a three-dimensional stirring wall forming device. Background Art

[0002] There are many ways to deal with foundation seepage prevention, among which cement soil mixing pile anti-seepage wall technology has been widely used in recent years as an effective treatment technology. Cement soil mixing pile anti-seepage wall is a process in which cement and soil are forced to mix in situ by a pile driver and adjacent piles are overlapped to form an anti-seepage wall. A series of physical and chemical reactions between cement and soil are used to improve the strength and anti-seepage performance of the reinforced soil. It has the advantages of high degree of mechanization, simple and fast construction, and can effectively improve the foundation's anti-seepage performance.

[0003] However, engineering practice has shown that during the construction of traditional cement-soil mixing pile anti-seepage walls, the single-horizontal mixing method causes a series of problems in the wall, such as incomplete and uneven mixing, wall stratification, etc., which in turn leads to poor local anti-seepage performance of the wall; the wall structure is less stable and is prone to excessive local stress, resulting in wall damage. Utility Model Content

[0004] The utility model aims to provide a three-dimensional mixing wall forming device, which solves the technical problems of incomplete and uneven mixing, serious wall stratification and poor wall structure stability existing in the prior art.

[0005] The utility model discloses a three-dimensional stirring wall forming device, comprising:

[0006] A frame body having a receiving cavity with front and rear openings;

[0007] Two support plates are respectively installed at the front and rear openings of the accommodating cavity;

[0008] A plurality of stirring mechanisms are arranged in sequence on the left and right sides, and the stirring mechanisms include

[0009] The drill rod is installed in the accommodating cavity for vertical rotation, and the bottom thereof passes through the frame body; the rotary drill bit is installed at the bottom of the drill rod.

[0010] A plurality of external excavation modules are arranged on the drill rod at intervals in the upper and lower parts;

[0011] At least one three-dimensional stirring module, the three-dimensional stirring module includes two stirring units, which are installed on the support plate one by one, a transmission unit, which is installed on the drill rod and is used to drive the two stirring units to move simultaneously; a driving mechanism, which is installed on the top of the frame and is transmission-connected to the multiple stirring mechanisms.

[0012] The present application uses an external excavation module and a three-dimensional mixing module to perform three-dimensional mixing of the entire wall, which makes the mixing more thorough and uniform, and avoids phenomena such as slurry bubbling and stratification in traditional cement-soil mixing pile anti-seepage walls. While ensuring the amount of cement added to the anti-seepage wall, the overall quality of the wall is greatly improved. Multiple mixing mechanisms are supported by a frame and a support plate to ensure the thickness of the wall and improve the construction effect.

[0013] On the basis of the above technical solution, the solution of this application can also be improved as follows:

[0014] Preferably, the driving mechanism comprises

[0015] A protective cover is installed on the top of the frame;

[0016] A plurality of hydraulic motors are installed in the protective cover and are connected to the drill pipes in a one-to-one manner;

[0017] One end of the infusion pipeline passes through the protective cover and is connected to the multiple hydraulic motors. By adopting this solution, the drill rod can be driven to rotate stably and efficiently, and the actual application requirements of high torque and impact resistance can be met, thereby improving the use effect of the device.

[0018] Preferably, the external excavation module includes:

[0019] A plurality of external excavation stirring blades are evenly arranged around the outer circumference of the drill rod; by adopting this solution, sufficient horizontal stirring can be performed.

[0020] Preferably, the stirring unit comprises:

[0021] Support plate,

[0022] A plurality of stirring blades are installed around the outer periphery of the support plate.

[0023] The driving shaft has one end fixedly connected to the support plate, and the other end horizontally penetrates the support plate and is connected to the drill rod. By adopting this solution, vertical stirring can be carried out stably and fully, and its structure is simple and compact, production and assembly are convenient, stability is good, and the use effect is good.

[0024] Preferably, the transmission unit comprises:

[0025] A closing box, rotatably sleeved on the drill rod;

[0026] A first bevel gear is fixedly sleeved on the drill rod and is located inside the closed box;

[0027] Two second bevel gears are installed on one end of the drive shaft that passes through the closed box, and are both meshed with the first bevel gear. By adopting this solution, power can be transmitted stably and efficiently, and the structure is stable and not easily disturbed by external factors, thereby improving the anti-interference ability and extending the service life.

[0028] Preferably, the stirring blade is provided with a plurality of rake teeth arranged at intervals; adopting this solution can improve the vertical stirring effect and enhance the stirring efficiency.

[0029] Preferably, it includes:

[0030] A plurality of transfer boxes are installed on the top wall of the accommodating chamber and are sleeved on the drill rod in a one-to-one correspondence;

[0031] A slurry delivery pipeline, one end of which passes through the top of the frame and is connected to the plurality of transfer boxes;

[0032] Among them, a slurry delivery channel is provided in the drill rod, and a plurality of grouting holes are opened at one end of the drill rod close to the rotating drill bit, and the grouting holes are connected with the slurry delivery channel. The drill rod is provided with slurry inlet holes on the outer periphery in the transfer box, and the slurry inlet holes are connected with the slurry delivery channel. By adopting this scheme, cement slurry can be conveniently and quickly transported to the excavated soil, and the slurry is dispersedly transported and evenly distributed, thereby improving the mixing effect; the transportation operation is convenient, saving time and effort, reducing the labor intensity of operators, and improving the overall operation efficiency.

[0033] Preferably, both sides of the bottom of the frame are provided with arc-shaped transition sections; by adopting this solution, the soil is guided to move toward both sides, thereby reducing the resistance encountered during the downward pressing process and improving the use effect of the device.

[0034] Through the above technical solution, the utility model achieves the following beneficial effects:

[0035] 1. This application can perform three-dimensional mixing of the entire wall of the anti-seepage wall by setting up an external excavation module and a three-dimensional mixing module. The mixing is more thorough and uniform, and the shrinkage and slurry phenomena are avoided. While ensuring the amount of cement added to the anti-seepage wall, the overall quality of the wall is greatly improved; multiple mixing mechanisms are supported by a frame and a support plate, which ensures the thickness of the wall and improves the construction effect;

[0036] 2. The present application can conveniently and quickly transport cement slurry to the excavated soil by setting up a transfer box and a slurry pipeline, and setting up a slurry channel, a grouting hole and a slurry inlet hole on the drill rod. The slurry is transported in a dispersed manner and evenly distributed, thereby improving the mixing effect. The transportation operation is convenient, saving time and effort, reducing the labor intensity of the operators, and improving the overall operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 It is a front view of the three-dimensional mixing wall forming device according to a specific embodiment of the utility model;

[0039] Figure 2 for Figure 1 The front cross-sectional view of the three-dimensional mixing wall forming device shown;

[0040] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0041] Figure 4 for Figure 1 A side cross-sectional view of the three-dimensional mixing wall forming device shown;

[0042] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0043] Figure 6 for Figure 1 A top view cross-sectional view of the three-dimensional mixing wall forming device shown;

[0044] Description of Reference Numerals

[0045] 1. Frame; 2. Support plate; 3. Stirring mechanism; 4. Driving mechanism; 5. Transfer box; 6. Slurry pipeline;

[0046] 11. Accommodating chamber; 12. Arc-shaped transition section; 31. Drill rod; 32. Rotating drill bit; 33. External excavation module; 34. Three-dimensional stirring module; 41. Protective cover; 42. Hydraulic motor; 43. Infusion pipeline;

[0047] 311, slurry delivery channel; 312, slurry spraying hole; 313, slurry inlet hole; 341, stirring unit; 342, transmission unit; 331, external excavation stirring blade;

[0048] 341a, support plate; 341b, stirring blade; 341c, drive shaft; 341d, rake teeth; 342a, closing box; 342b, first bevel gear; 342c, second bevel gear. DETAILED DESCRIPTION

[0049] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0050] First of all, it should be noted that in the following description, some directional words involved in order to clearly illustrate the technical solution of the utility model, such as "front and back", "left and right", etc., all have meanings that are inferred from the normal directions of components in a three-dimensional mixing wall device. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the utility model.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features.

[0052] In this application, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0053] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0054] Example:

[0055] like Figure 1 and Figure 4 As shown, an embodiment of the present application discloses a three-dimensional mixing wall forming device for constructing cement soil anti-seepage walls, and its specific structure includes: a frame 1, two support plates 2, multiple mixing mechanisms 3 and a driving mechanism 4.

[0056] The frame 1 has a receiving cavity 11 with front and rear openings. The frame 1 is a circular structure for supporting other components, and has a high structural stability.

[0057] The two support plates 2 are respectively installed at the front and rear openings of the accommodating cavity 11 . The support plates 2 are in an X-shaped structure, and are used to support the stirring unit 341 , and improve the structural stability of the frame 1 .

[0058] A plurality of stirring mechanisms 3 are arranged in sequence at intervals on the left and right for three-dimensional stirring. In the present embodiment, there are three stirring mechanisms 3, but the number is not limited thereto and may be two, four or more stirring mechanisms 3 without limitation.

[0059] Specifically, the stirring mechanism 3 includes:

[0060] The drill rod 31 is vertically rotatably installed in the accommodating cavity 11, and the bottom thereof passes through the frame 1. The bottom of the drill rod 31 is a conical structure to improve the soil drilling effect;

[0061] The rotary drill bit 32 is installed at the bottom of the drill rod 31 and has a conical structure as a whole and a spiral groove is provided on the outside for digging soil;

[0062] A plurality of external excavation modules 33 are arranged on the drill rod 31 at intervals in the upper and lower parts to perform horizontal mixing on the soil;

[0063] At least one three-dimensional mixing module 34 is used to perform three-dimensional mixing on the soil.

[0064] For example, Figure 5 As shown, the three-dimensional stirring module 34 includes:

[0065] Two stirring units 341 are mounted on the support plate 2 in a one-to-one correspondence. The two stirring units 341 are arranged front and back opposite to each other and are used to stir the soil on the front and back sides of the drill rod 31;

[0066] The transmission unit 342 is installed on the drill rod 31 and is used to drive the two stirring units 341 to move simultaneously by utilizing the rotation of the drill rod 31 .

[0067] The driving mechanism 4 is installed on the top of the frame 1 and is transmission-connected with the plurality of stirring mechanisms 3 .

[0068] Preferably, the external excavation module 33 and the three-dimensional mixing module 34 which are generally located in the frame 1 are arranged alternately in the horizontal and vertical directions to ensure uniform mixing of the soil and improve the use effect. In this embodiment, it is set to three rows and three columns, but it is not limited to this and is not limited to this.

[0069] In the above technical solution, the device is first placed in a suitable position, and then the multiple mixing mechanisms 3 are driven to move by the driving mechanism 4, and then the entire device is pressed downward into the soil to be reinforced. The specific process is: the drill rod 31 is driven to rotate forward, and the drill rod 31 drives the rotary drill bit 32 to rotate, so that the soil is excavated during the downward pressing process, so that the device can gradually sink into the soil to be reinforced, and cement slurry is transported to the excavated soil during this process, so that the multiple external excavation modules 33 and three-dimensional mixing modules 34 on the drill rod 31 stir the cement slurry and soil in all directions until it sinks to the designed depth, and then the cement slurry delivery is stopped, and the drill rod continues to rotate until the pile driver lifts the device to the ground and stops.

[0070] It should be noted that the frame 1 can serve as overlapping and limiting support for multiple mixing mechanisms 3, thereby ensuring the verticality of the drill rod 31 during operation and avoiding lateral deviation of the mixing mechanism 3, thereby ensuring the thickness of the wall and improving the construction effect.

[0071] The utility model can carry out three-dimensional mixing of the whole wall of the anti-seepage wall through the external excavation module 33 and the three-dimensional mixing module 34, and the mixing is more thorough and uniform, and the phenomena of stratification and slurry bubbling are avoided, while ensuring the amount of cement added to the wall, the overall quality of the anti-seepage wall is greatly improved; the multiple mixing mechanisms 3 are supported by the frame 1 and the support plate 2, so the thickness of the wall is guaranteed and the construction effect is improved.

[0072] In some embodiments, Figure 2 to Figure 4 As shown, the driving mechanism 4 is further designed to include:

[0073] A protective cover 41 is installed on the top of the frame 1 to seal and protect the internal components and can be disassembled for easy maintenance;

[0074] A plurality of hydraulic motors 42 are installed in the protective cover 41 and are connected to the drill rods 31 in a one-to-one manner. The driving end of the hydraulic motor 42 is fixedly connected to the top of the drill rod 31.

[0075] One end of the infusion pipeline 43 passes through the protection cover 41 and is connected to the plurality of hydraulic motors 42 , so as to transport hydraulic oil to each hydraulic motor 42 .

[0076] It should be noted that the hydraulic motor 42 can provide a fairly powerful driving force, and is particularly suitable for application scenarios that require high torque and high power output. The working characteristics of its hydraulic system enable it to better resist load shocks and overloads, thereby improving the reliability and durability of the equipment.

[0077] During operation, the external device supplies hydraulic oil to the plurality of hydraulic motors 42 simultaneously through the fluid delivery pipeline 43, so that the hydraulic motors 42 drive the drill rod 31 to rotate.

[0078] Through the above-mentioned design of the driving mechanism 4, the drill rod 31 can be driven to rotate stably and efficiently, and the actual application requirements of high torque and impact resistance are met, thereby improving the use effect of the device.

[0079] In some embodiments, Figure 6 As shown, the external excavation module 33 includes:

[0080] A plurality of external excavation stirring blades 331 are evenly arranged around the outer circumference of the drill rod 31 .

[0081] Preferably, the outer digging stirring blades 331 are rod-shaped and are provided in four numbers to perform sufficient lateral stirring, but it is not limited thereto, and the number may also be three, five or more.

[0082] In some embodiments, Figure 5 As shown, the stirring unit 341 is further designed to include:

[0083] The support plate 341a is a circular plate-shaped structure, which reduces the rotation resistance and is used to support the stirring blade 341b;

[0084] A plurality of stirring blades 341b are mounted around the outer periphery of the support plate 341a, are rod-shaped, and are provided with four blades to perform vertical stirring;

[0085] The driving shaft 341c has one end fixedly connected to the support disk 341a, and the other end horizontally penetrates the support plate 2 and is connected to a drill rod 31. The driving shaft 341c is rotatably connected to the support plate 2 via a bearing, thereby improving the rotational stability.

[0086] During operation, the drill rod 31 drives the driving shaft 341c to rotate, the driving shaft 341c drives the supporting plate 341a to rotate, and the supporting plate 341a drives the plurality of mixing blades 341b to rotate vertically, thereby fully mixing cement and soil vertically.

[0087] Preferably, a plurality of rake teeth 341d arranged at intervals are provided on the stirring blade 341b. The rake teeth 341d are preferably arranged at intervals along the axial direction of the stirring blade 341b and distributed front to back, which can improve the stirring effect.

[0088] Through the above-mentioned design of the stirring unit 341, vertical stirring can be performed stably and fully, and its structure is simple and compact, production and assembly are convenient, stability is good, and use effect is good.

[0089] Based on the above embodiments, Figure 5 As shown, the transmission unit 342 is further designed to include:

[0090] The closed box 342a is rotatably sleeved on the drill rod 31, and the front and rear sides of the closed box 342a are fixedly connected to the support plate 2 through connecting rods, thereby improving the overall structural stability;

[0091] The first bevel gear 342b is fixedly sleeved on the drill rod 31 and is located inside the closed box 342a;

[0092] The two second bevel gears 342c are mounted on one end of the driving shaft 341c that passes through the closed box 342a, and are both meshed with the first bevel gear 342b.

[0093] During transmission, the drill rod 31 drives the first bevel gear 342b to rotate, the first bevel gear 342b drives the two second bevel gears 342c to rotate, and the second bevel gear 342c drives the driving shaft 341c to rotate, thereby driving the two mixing units 341 to complete mixing in the front and back at the same time; wherein, the closed box 342a protects other components to prevent the meshing transmission between the gears from being affected by factors such as cement and soil.

[0094] Through the above-mentioned design of the transmission unit 342, power can be transmitted stably and efficiently, and the structure is stable and not easily disturbed by external factors, thereby improving the anti-interference ability and extending the service life.

[0095] In some embodiments, Figure 2 and Figure 3 As shown, in order to facilitate the transportation of cement slurry, it includes:

[0096] A plurality of transfer boxes 5 are installed on the top wall of the accommodating chamber 11 and are sleeved on the drill rod 31 one by one. The transfer boxes 5 and the drill rod 31 are rotatably connected and sealed to prevent the slurry from leaking from the gap between them.

[0097] A slurry delivery pipeline 6, one end of which passes through the top of the frame 1 and is connected to a plurality of transfer boxes 5;

[0098] Among them, a slurry delivery channel 311 is provided in the drill rod 31, and a plurality of grouting holes 312 are opened at one end of the drill rod 31 close to the rotating drill bit 32, and the grouting holes 312 are connected to the slurry delivery channel 311. A slurry inlet hole 313 is opened on the outer periphery of the drill rod 31 in the transfer box 5, and the slurry inlet hole 313 is connected to the slurry delivery channel 311.

[0099] When conveying cement slurry, cement slurry is added to the slurry delivery pipeline 6, and then the cement slurry is input into each transfer box 5 through the slurry delivery pipeline 6, and then enters the slurry delivery channel 311 in the drill rod 31 through the slurry inlet hole 313. It will not interfere with the rotation of the drill rod 31, thereby ensuring the stirring effect. Then the cement slurry flows downward in the slurry delivery channel 311, and is finally sprayed into the soil through the spray hole 312.

[0100] Through the above arrangement, cement slurry can be conveniently and quickly transported to the excavated soil, and it is dispersedly transported and evenly distributed, thereby improving the mixing effect; the transportation operation is convenient, saving time and effort, reducing the labor intensity of operators, and improving overall operating efficiency.

[0101] In some embodiments, Figure 1 As shown, arc-shaped transition sections 12 are provided on both sides of the bottom of the frame 1 .

[0102] Specifically, the arc-shaped transition section 12 can guide the soil to move toward both sides during the downward pressing process of the frame 1, thereby reducing the resistance encountered during the downward pressing process and improving the use effect of the device.

[0103] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0104] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A three-dimensional stirring wall forming device, characterized in that: include: A frame (1) having a receiving cavity (11) with front and rear openings; Two support plates (2) are respectively installed at the front and rear openings of the accommodating cavity (11); A plurality of stirring mechanisms (3) are arranged in sequence at intervals on the left and right sides, and the stirring mechanisms (3) include The drill rod (31) is vertically rotatably installed in the accommodating cavity (11), and the bottom thereof passes through the frame (1). A rotary drill bit (32) is installed at the bottom of the drill rod (31). A plurality of external excavation modules (33) are arranged on the drill rod (31) at intervals in the upper and lower parts; At least one three-dimensional stirring module (34), the three-dimensional stirring module (34) comprising Two stirring units (341) are mounted on the support plate (2) in a one-to-one correspondence, and a transmission unit (342) is mounted on the drill rod (31) and is used to drive the two stirring units (341) to move simultaneously; The driving mechanism (4) is installed on the top of the frame (1) and is transmission-connected to the plurality of stirring mechanisms (3).

2. The three-dimensional stirring wall forming device according to claim 1, characterized in that: The driving mechanism (4) comprises A protective cover (41) is installed on the top of the frame (1); A plurality of hydraulic motors (42) are installed in the protective cover (41) and are transmission-connected to the drill rods (31) in a one-to-one correspondence; One end of the infusion pipeline (43) passes through the protection cover (41) and is connected to the plurality of hydraulic motors (42).

3. The three-dimensional stirring wall forming device according to claim 1, characterized in that: The external excavation module (33) comprises: A plurality of external excavation stirring blades (331) are evenly arranged around the outer circumference of the drill rod (31).

4. The three-dimensional stirring wall forming device according to claim 1, characterized in that: The stirring unit (341) comprises: Support plate (341a), A plurality of stirring blades (341b) are installed around the outer periphery of the support plate (341a). The driving shaft (341c) has one end fixedly connected to the supporting plate (341a) and the other end transversely penetrates the supporting plate (2) and is drivingly connected to a drill rod (31).

5. The three-dimensional stirring wall forming device according to claim 4, characterized in that: The transmission unit (342) comprises: A closing box (342a) is rotatably sleeved on the drill rod (31); A first bevel gear (342b) is fixedly sleeved on the drill rod (31) and is located inside the closed box (342a); Two second bevel gears (342c) are mounted on one end of the driving shaft (341c) that passes through the closed box (342a), and are both meshed with the first bevel gear (342b).

6. The three-dimensional stirring wall forming device according to claim 4, characterized in that: The stirring blade (341b) is provided with a plurality of rake teeth (341d) arranged at intervals.

7. The three-dimensional stirring wall forming device according to claim 1, characterized in that: include: A plurality of transfer boxes (5) are installed on the top wall of the accommodating chamber (11) and are sleeved on the drill rod (31) in a one-to-one correspondence; A slurry conveying pipeline (6), one end of which passes through the top of the frame (1) and is connected to the plurality of transfer boxes (5); A slurry delivery channel (311) is provided in the drill rod (31), a plurality of grouting holes (312) are provided at one end of the drill rod (31) close to the rotary drill bit (32), the grouting holes (312) are communicated with the slurry delivery channel (311), and a slurry inlet hole (313) is provided on the outer periphery of the drill rod (31) in the transfer box (5), the slurry inlet hole (313) is communicated with the slurry delivery channel (311).

8. The three-dimensional stirring wall forming device according to claim 1, characterized in that: The frame (1) has arc-shaped transition sections (12) on both sides of the bottom.

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