Cement soil pressure irrigation pile planting equipment and process

Abstract

The invention relates to the technical field of building construction, in particular to cement soil pressure irrigation pile planting equipment which comprises a drilling mechanism and a screening mechanism, the drilling mechanism comprises a sliding frame, a spiral drilling rod driven by a motor to rotate is arranged on the sliding frame in a sliding mode, and the spiral drilling rod can move in the vertical direction of the sliding frame; a vibration base is further arranged on the sliding frame in a sliding mode, the vibration base can move in the vertical direction of the sliding frame, a pile casing is fixedly arranged on the vibration base, a vibration hammer used for vibrating the pile casing is arranged on the vibration base, the axis of the pile casing corresponds to the axis of the spiral drill rod, and the pile casing is arranged on the outer side of the spiral drill rod. The spiral drill rod penetrates through the vibration seat and extends into the pile casing, a soil taking hopper is further arranged on the vibration seat, and the soil taking hopper is arranged around the spiral drill rod and used for bearing drilled soil, sand and stones; the screening mechanism comprises a screening device and a reuse tank, the screening device is used for screening soil, sand and stones and introducing the soil, sand and stones into the reuse tank, and the reuse tank is used for storing the soil, sand and stones for reuse. And the soil is recycled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a cement soil pressure grouting pile planting equipment and process. BACKGROUND

[0002] Cement soil pressure grouting pile planting is a composite pile foundation technology combining cement soil mixing and pressure grouting process, mainly used for soft soil foundation treatment and foundation pit support engineering. Its core principle is to form a cement soil pile body through high-pressure grouting, and to implant a precast pile or a reinforcement cage in it, forming a composite structure with the functions of retaining soil, water isolation and load bearing.

[0003] When this construction method is carried out under the prior art, drilling is usually carried out first, and the soil is continuously discharged during the drilling process. A large amount of sand and soil is excavated in this process. The common treatment method is to discard or use it for filling. Discarding wastes resources, and using it for filling wastes the resources excavated. Both have the problem of resource waste. SUMMARY

[0004] To solve the problem that the prior art usually carries out drilling first, and the soil is continuously discharged during the drilling process, a large amount of sand and soil is excavated in this process, the common treatment method is to discard or use it for filling, discarding wastes resources, and using it for filling wastes the resources excavated, both have the problem of resource waste, the present application provides a cement soil pressure grouting pile planting equipment.

[0005] A cement soil pressure grouting pile planting equipment, comprising a drilling mechanism, a screening mechanism, the drilling mechanism comprising a sliding frame, a spiral drill rod driven to rotate by a motor is slidingly arranged on the sliding frame, the spiral drill rod can move along the vertical direction of the sliding frame, a vibrating seat is also slidingly arranged on the sliding frame, the vibrating seat can move along the vertical direction of the sliding frame, a casing is fixedly arranged on the vibrating seat, a vibrating hammer for vibrating the casing is arranged on the vibrating seat, the axis of the casing corresponds to the axis of the spiral drill rod, the casing is arranged outside the spiral drill rod, the spiral drill rod penetrates the vibrating seat and extends into the casing, a soil bucket is also arranged on the vibrating seat, the soil bucket surrounds the spiral drill rod and is used to receive the excavated soil and stones; The screening mechanism comprises a screen and a reuse tank, the screen is used to screen the soil and stones and pass them into the reuse tank, and the reuse tank is used to store the reused soil and stones.

[0006] Through the above technical scheme, the drilling mechanism can perform drilling and soil taking operations, the spiral drill rod can be vertically moved along the sliding frame for drilling, the vibration hammer can drive the casing to follow synchronously, and the soil bucket can receive the drilled soil, sand and stone; the screening mechanism can screen the soil, sand and stone, and store the screened soil, sand and stone in the reusable tank for reuse. The soil waste during the pit filling process is reduced, and the resource waste is reduced.

[0007] Optionally, the crawler crane is further provided, and the free-fall hammer is hoisted on the crawler crane.

[0008] Through the above technical scheme, the crawler crane and the free-fall hammer are added to the cement-soil pressure grouting pile planting equipment, and the crawler crane can move in the vertical direction. The impact force of the free-fall hammer can be used to assist the pile planting operation, and the pile planting effect is enhanced.

[0009] Optionally, the spiral drill rod is internally provided with a grouting flow channel, the grouting flow channel is arranged along the axis of the spiral drill rod, the grouting flow channel penetrates the spiral drill rod, and the top of the grouting flow channel is provided with a feeding pipe for injecting the slurry, and the feeding pipe is in communication with the grouting flow channel.

[0010] Through the above technical scheme, the grouting flow channel and the feeding pipe are arranged in the spiral drill rod. The slurry can be discharged from the bottom of the spiral drill rod after entering the grouting flow channel from the feeding pipe, the function of injecting the slurry into the drilling hole is realized, and the spiral drill rod is moved upward to complete the pile body pouring.

[0011] Optionally, the screen is internally provided with a vibrating screen, the vibrating screen is used for vibrating and screening the soil, the reusable tank is internally provided with a stirring paddle, the reusable tank is used for introducing the slurry, and the stirring paddle is used for stirring the screened soil and the slurry.

[0012] Through the above technical scheme, the vibrating screen can vibrate and screen the soil, and the stirring paddle can stir the screened soil and the slurry. This is helpful to realize the coarse and fine screening of the soil, sand and stone, and to make the fine soil, sand and stone into reusable slurry.

[0013] Optionally, the vibrating seat is provided with a soil taking groove, the soil taking groove is arranged corresponding to the spiral drill rod, the soil taking groove is provided with a primary screen corresponding to the position of the soil bucket, and the primary screen is used for primarily screening the soil.

[0014] Through the above technical scheme, when the spiral drill rod of the drilling mechanism drills the soil, the soil bucket receives the soil, sand and stone, and the primary screen corresponding to the position of the soil bucket on the vibrating seat can primarily screen the soil. This reduces the burden of the screening work of the subsequent screening mechanism, and improves the screening efficiency and quality.

[0015] Optionally, the preliminary screening net comprises two net plates, the two net plates are detachably connected, the net plates are arranged on the two sides of the auger rod respectively, the vibration seat is provided with a withdrawal groove corresponding to the net plate, the withdrawal groove is arranged on the two sides of the vibration seat, the withdrawal groove penetrates the vibration seat, the net plate can be sent into the vibration seat along the withdrawal groove, the vibration seat is provided with a sliding groove corresponding to the net plate, the net plate can slide up and down along the sliding groove, the net plate is provided with a spiral groove corresponding to the auger rod, the two net plates can be connected with the auger rod through the spiral groove, when the auger rod rotates, the two net plates can be driven by the auger rod to move upward, the auger rod is provided with a reverse spiral section on the upper side of the net plate, the reverse spiral section is opposite to the spiral of the auger rod, and the reverse spiral section drives the net plate to move downward after extending into the spiral groove.

[0016] By adopting the above technical scheme, the preliminary screening net is arranged as two detachably connected net plates, the net plates are convenient to install and detach, the net plates can be sent into the vibration seat along the withdrawal groove and slide up and down along the sliding groove, and the net plates can wrap the auger rod through the spiral groove, the net plates are driven by the blades of the auger rod to move up and down when the auger rod rotates, the net plates can be circulated to move up and down when the soil is continuously sent into the soil taking groove of the vibration seat, the soil is screened, the screening of the soil is assisted, the screening efficiency is improved, and the subsequent screening mechanism works more smoothly.

[0017] Optionally, the two net plates are both provided with a magnet strip, the two magnet strips are arranged at positions close to the other net plate, and the magnet strips can be attracted to each other.

[0018] By adopting the above technical scheme, the magnet strips are arranged to make the connection of the two net plates more close, thereby improving the stability during screening, and since the auger rod is formed on the upper and lower sides of the net plate, the auger rod is interfered even if the attraction is loose, and the net plate is difficult to fall off.

[0019] Optionally, the net plate is provided with an abrasion-reducing sheet at the position of the spiral groove, the abrasion-reducing sheet surrounds the spiral groove, and the abrasion-reducing sheet is used to abut against the auger rod.

[0020] By adopting the above technical scheme, the abrasion-reducing sheet can reduce the friction, can reduce the situation that the fine sand and soil are stuck between the auger rod and the net plate and are difficult to come out, can reduce the loss caused by the contact between the auger rod and the net plate, and thereby the service life is improved.

[0021] The application also provides a cement-soil pressure-grouting pile planting process, which comprises the cement-soil pressure-grouting pile planting device and adopts the following method. A, the drilling mechanism first drills the auger rod into the ground, and simultaneously, the vibration hammer drives the casing to follow the auger rod to the designed elevation; B, the screw drill stops the vertical movement, and the soil is taken out continuously until the soil at the elevation is completely taken out. At this time, the soil is preliminarily screened through the primary screening net; C, the soil is sent out along the soil taking hopper and conveyed to the screening mechanism, the screening mechanism screens the soil and sand according to the size, and the fine soil and sand are sent into the reusable tank and stirred into mud slurry; D, the mud slurry is passed through the grouting flow channel and introduced into the screw drill rod, the mud slurry is discharged from the bottom of the screw drill rod, and the screw drill rod is moved upward at the same time; E, after the screw drill rod is completely taken out, the outer cylinder is knocked into the ground by free fall, and the outer cylinder is located between the pile body and the pile body; F, after the pile body and the outer cylinder are formed, the free fall hammer is lifted out, the pile body is vibrated by the vibration hammer, and the pile body is moved upward to be taken out, so that the pile planting is completed.

[0022] By adopting the above technical scheme, the taken-out soil can be reused, which can effectively reduce resource waste and reduce the waste of electric power and equipment resources caused by the invalid work of digging out and re-filling the soil.

[0023] In summary, the present application has at least the following beneficial effects: The present application solves the problem that in the prior art, the soil is usually drilled first, and the soil is continuously discharged during the drilling process, a large amount of sand and soil is excavated, and the common treatment method is to discard or use for filling, which wastes resources, and using the excavated resources for filling also wastes resources, which causes resource waste. The present application reuses the soil taken out by drilling, and uses it for subsequent mud filling steps, thereby reducing resource waste and improving resource utilization. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a perspective view of the present embodiment.

[0025] Figure 2 is a perspective view of the present embodiment.

[0026] Figure 3 is a sectional view of the screening mechanism in the present embodiment.

[0027] Figure 4 is a sectional view of the drilling mechanism in the present embodiment

[0028] BRIEF DESCRIPTION OF DRAWINGS: 1, drilling mechanism; 11, sliding frame; 12, auger; 121, grouting flow channel; 122, feeding pipe; 13, vibrating seat; 131, soil bucket; 132, soil groove; 133, primary screen; 134, screen plate; 135, exit groove; 136, sliding groove; 137, auger groove; 138, magnet strip; 139, wear-reducing sheet; 14, casing; 15, vibrating hammer; 2, screening mechanism; 21, screener; 211, vibrating screen; 22, multiplex tank; 221, stirring paddle; 3, crawler crane; 31, free-fall hammer; DETAILED DESCRIPTION

[0029] The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] A cement-soil pressure-grouting pile planting device, as shown in Figure 1 and Figure 2 , comprises a drilling mechanism 1 and a screening mechanism 2. The drilling mechanism 1 comprises a sliding frame 11, a spiral auger 12 rotatably arranged on the sliding frame 11 and driven by a motor, the spiral auger 12 being movable along the vertical direction of the sliding frame 11, a vibrating seat 13 slidably arranged on the sliding frame 11, the vibrating seat 13 being movable along the vertical direction of the sliding frame 11, a casing 14 fixedly arranged on the vibrating seat 13, a vibrating hammer 15 arranged on the vibrating seat 13 and used for vibrating the casing 14, and the axis of the casing 14 corresponding to the axis of the spiral auger 12. The casing 14 is arranged outside the spiral auger 12, the spiral auger 12 penetrates through the vibrating seat 13 and extends into the casing 14, and a soil bucket 131 is further arranged on the vibrating seat 13 and surrounds the spiral auger 12 and is used for receiving the drilled soil and sand. In a specific implementation, the vibrating seat 13 and the spiral auger 12 are driven to slide in the vertical direction by a motor hoist or a linear mechanism. In drilling, the spiral auger 12 and the casing 14 are driven to move downward synchronously. When drilling, the spiral auger 12 continuously moves downward and does not take out most of the soil. When reaching a distance, the auger remains in position and continuously rotates under the action of the spiral rotation, and the soil is blocked by the casing 14 and is sent upward along the casing 14, so that the soil can be taken out. The vibrating hammer 15 is driven to vibrate by the same principle as the vibrating motor, so that the vibrating seat 13 vibrates.

[0031] As shown in Figure 1 and Figure 3As shown, the screening mechanism 2 includes a screening device 21 for screening the soil, sand and stone and entering a reuse tank 22, and the reuse tank 22 is used to store the soil, sand and stone for reuse. The screening device 21 is provided with a vibrating screen 211 for vibrating and screening the soil, and the reuse tank 22 is provided with a stirring paddle for stirring the screened soil and the slurry. In specific implementation, the screening adopts the common vibrating screening method on the market, and the large-particle soil cannot pass through the vibrating screen 211, and such soil is also difficult to be made into slurry, while the small-particle soil can pass through the vibrating screen 211, and is more convenient to be made into slurry. The removed soil needs to be sent into the screening device 21 by a shovel truck or the like, and the screened soil is sent into the reuse tank 22 by a conveyor belt, and the raw materials for making slurry are mixed in the reuse tank 22 to form slurry for reuse. In other embodiments, the screening can also be performed by other methods, and the earth bucket 131 can also be directly aimed at the screening device 21 to further improve the convenience.

[0032] As shown in Figure 1 and Figure 4 , a crawler crane 3 is also included, and the free-fall hammer 31 is hoisted on the crawler crane 3, and the crawler crane 3 can move in the vertical direction. In specific implementation, the free-fall hammer 31 is used to knock the outer cylinder for being sleeved on the outside of the pile body, and the knocking is achieved by gravity free fall without the need to apply additional force, thereby reducing the construction cost.

[0033] As shown in Figure 4 , the spiral drill rod 12 is internally provided with a grouting flow channel 121, the grouting flow channel 121 is arranged along the axis of the spiral drill rod 12, and the grouting flow channel 121 is arranged through the spiral drill rod 12. The top of the grouting flow channel 121 is provided with a feeding pipe 122 for injecting the slurry, and the feeding pipe 122 is in communication with the grouting flow channel 121. In specific implementation, the spiral drill rod 12 stops rotating during grouting, and the feeding pipe 122 needs to be inserted for the injection of the slurry. The slurry continuously moves upward from the bottom, and the slurry and the spiral drill rod 12 should move upward at the same speed to avoid the situation that the slurry covers the spiral drill rod 12 and causes adhesion on the spiral drill rod.

[0034] As shown in Figure 4As shown, the vibration seat 13 is provided with a soil taking groove 132 corresponding to the auger rod 12, and the soil taking groove 132 is provided with a primary screen 133 corresponding to the position of the soil taking hopper 131. The primary screen 133 is used for primary screening of the soil. The primary screen 133 includes two screen plates 134 which are detachably connected and arranged on both sides of the auger rod 12. The vibration seat 13 is provided with an exit groove 135 corresponding to the screen plate 134 and arranged on both sides of the vibration seat 13. The exit groove 135 is arranged through the vibration seat 13, and the screen plate 134 can be sent into the vibration seat 13 along the exit groove 135. The vibration seat 13 is provided with a sliding groove 136 corresponding to the screen plate 134, and the screen plate 134 can slide up and down along the sliding groove 136. In specific implementation, the exit groove 135 is arranged at the top of the soil taking groove 132, and the screen plate 134 can be taken out from the exit groove 135 only when it slides to the top of the sliding groove 136. The screen plate 134 can be installed on both sides of the soil taking groove 132 and taken out after the soil taking groove 132 is filled, so that the excessive soil can be conveniently treated. In other embodiments, the screen plate 134 can be driven by electricity to further improve the convenience.

[0035] As shown in the figure, Figure 4 The screen plate 134 is provided with a spiral groove 137 corresponding to the auger rod 12, and the two screen plates 134 can be connected with the auger rod 12 through the spiral groove 137. When the auger rod 12 rotates, the two screen plates 134 can be driven by the auger rod 12 to move upward. The auger rod 12 is provided with a reverse spiral section above the screen plate 134, and the reverse spiral section is opposite to the spiral of the auger rod 12. When the reverse spiral section extends into the spiral groove 137, it drives the screen plate 134 to move downward. In specific implementation, the primary screen 133 can first move upward under the cooperation of the spiral groove 137 and the auger rod 12, and then move downward when it reaches the reverse spiral section. When the soil is continuously sent into the soil taking groove 132, the soil will continuously move upward until it reaches the primary screen 133. At this time, the primary screen 133 moves up and down, and because the soil is continuously pushed upward from below, the fine particle soil can continue to move upward through the primary screen 133 and be sent into the soil taking hopper 131. The top of the primary screen 133 is slightly inclined to the soil taking hopper 131, so that the soil can be continuously sent into the soil taking hopper 131 under the guidance to avoid blockage. The coarse particle soil cannot pass through the primary screen 133 and is left in the soil taking groove 132. In order to further reduce the blockage, the soil particles screened by the primary screen 133 are not too small, so that only a small amount of oversized particles cannot pass through. In addition, the vibration hammer 15 at the vibration seat 13 can also start auxiliary screening. When vibrating, it can effectively vibrate the soil stuck on the primary screen 133 to avoid blockage.

[0036] As shown in the figure, Figure 4As shown, each of the two mesh plates 134 is provided with a magnetic strip 138, which is positioned close to the other mesh plate 134. The magnetic strips 138 can attract each other. In practice, the magnetic strips 138 can help connect the two mesh plates 134, but in reality, the two mesh plates 134 are blocked by the spiral of the auger rod 12, so the mesh plates 134 are difficult to detach from the auger rod 12.

[0037] like Figure 4 As shown, the mesh plate 134 is provided with a friction-reducing plate 139 at the position of the spiral groove 137. The friction-reducing plate 139 is arranged around the spiral groove 137 and is used to abut against the spiral drill rod 12. In specific implementation, the friction-reducing plate 139 is made of low-friction and high-durability materials such as polytetrafluoroethylene, which can effectively reduce the situation where soil is stuck in the spiral groove 137, and reduce the situation where the spiral drill rod 12 is stuck and cannot rotate. Coarse sand particles have difficulty entering this position, and fine particles can slide out quickly under the action of the friction-reducing plate 139 after entering this position. Furthermore, the soil can also be squeezed out through the reverse spiral section, which further improves the stability of use.

[0038] This embodiment also provides a cement-soil pressure grouting pile planting process: including the cement-soil pressure grouting pile planting equipment described in the claims above, and employing the following method: A. The drilling mechanism 1 first drills the spiral drill rod 12 into the ground, and at the same time, the casing 14 is synchronously advanced to the design elevation through the vibratory hammer 15. At this time, only part of the soil is upward, which will support part of the soil at the ground. B. The spiral borehole stops moving vertically and continues to rotate to extract soil until the soil at the elevation is completely removed. At this point, the soil is preliminarily screened by the primary screen 133. C. The soil is sent out along the soil hopper 131 and transported to the screening mechanism 2. The screening mechanism 2 separates the soil and gravel into coarse and fine sections. The fine soil and gravel are sent into the reuse tank 22 and stirred into mud. Equipment such as a loader is required for transport. D. The mud made from reclaimed soil is directly introduced into the spiral drill rod 12 through the grouting channel 121. The mud is discharged from the bottom of the spiral drill rod 12, and the spiral drill rod 12 is moved upward at the same time. E. After the spiral drill rod 12 is completely removed, the outer cylinder is driven into the pile body by free fall. The outer cylinder is located between the casing 14 and the pile body. F. After the pile body and outer cylinder are formed, the free-fall hammer 31 is lifted out, and the casing 14 is vibrated by the vibratory hammer 15. At the same time, the casing 14 is moved upward and removed to complete the pile planting.

[0039] Working principle: By reusing the soil extracted from the ground as drilling mud and using it directly in the construction process, the utilization rate of resources is improved.

[0040] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, and thus: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A cement-soil press-grouting pile-planting apparatus, characterized by: The device comprises a drilling mechanism (1) and a screening mechanism (2). The drilling mechanism comprises a sliding frame (11) on which a screw drill rod (12) driven by a motor is arranged to rotate and move along the vertical direction of the sliding frame (11). A vibrating seat (13) is also arranged on the sliding frame (11) to move along the vertical direction of the sliding frame (11). A casing (14) is fixedly arranged on the vibrating seat (13). A vibrating hammer (15) is arranged on the vibrating seat (13) to vibrate the casing (14). The axis of the casing (14) corresponds to the axis of the screw drill rod (12). The casing (14) is arranged outside the screw drill rod (12). The screw drill rod (12) penetrates the vibrating seat (13) and extends into the casing (14). A soil bucket (131) is also arranged on the vibrating seat (13) to surround the screw drill rod (12) and receive the drilled soil and sand. The screening mechanism (2) comprises a screen (21) and a reuse tank (22). The screen (21) is used to screen the soil and sand and pass into the reuse tank (22). The reuse tank (22) is used to store the reused soil and sand.

2. The cement-soil press-grouting pile-planting apparatus according to claim 1, characterized in that: A crawler crane (3) is also included. The free-fall hammer (31) is hoisted on the crawler crane (3). The crawler crane (3) can move along the vertical direction.

3. The cement-soil press-grouting pile-planting equipment according to claim 1, characterized in that: A grouting flow channel (121) is arranged inside the screw drill rod (12). The grouting flow channel (121) is arranged along the axis of the screw drill rod (12) and penetrates the screw drill rod (12). A feeding pipe (122) is arranged at the top of the grouting flow channel (121) to inject the slurry. The feeding pipe (122) is in communication with the grouting flow channel (121).

4. The cement-soil press-grouting pile-planting apparatus according to claim 1, characterized in that: A vibrating screen (211) is arranged in the screen (21) to vibrate and screen the soil. A stirring paddle is arranged in the reuse tank (22) to stir the screened soil and the slurry.

5. The cement-soil press-grouting pile-planting apparatus according to claim 4, characterized in that: A soil groove (132) is arranged on the vibrating seat (13) and corresponds to the screw drill rod (12). An initial screen (133) is arranged at the soil groove (132) and corresponds to the position of the soil bucket (131). The initial screen (133) is used to initially screen the soil.

6. The cement-soil press-grouting pile-planting apparatus according to claim 5, characterized in that: The primary screening net (133) comprises two net plates (134), the two net plates (134) are detachably connected, the net plates (134) are respectively arranged on the two sides of the auger rod (12), the vibration seat (13) is provided with an exit groove (135) corresponding to the net plate (134), the exit groove (135) is arranged on the two sides of the vibration seat (13), the exit groove (135) is arranged through the vibration seat (13), the net plate (134) can be sent into the vibration seat (13) along the exit groove (135), the vibration seat (13) is provided with a sliding groove (136) corresponding to the net plate (134), the net plate (134) can slide up and down along the sliding groove (136), the net plate (134) is provided with a spiral groove (137) corresponding to the auger rod (12), the two net plates (134) can be connected through the spiral groove (137) and the auger rod (12), when the auger rod (12) rotates, the two net plates (134) can be driven by the auger rod (12) to move upwards, the auger rod (12) is provided with a reverse spiral section on the upper side of the net plate (134), the reverse spiral section is opposite to the spiral of the auger rod (12), after the reverse spiral section extends into the spiral groove (137), the net plate (134) is driven to move downwards.

7. The cement-soil press-grouting pile-planting apparatus according to claim 6, characterized in that: The two net plates (134) are provided with a magnet strip (138), the two magnet strips (138) are arranged at positions close to the other net plate (134), and the magnet strips (138) can be attracted to each other.

8. The cement-soil press-grouting pile-planting apparatus according to claim 7, characterized in that: The net plate (134) is provided with an abrasion-reducing sheet (139) at the position of the spiral groove (137), the abrasion-reducing sheet (139) is arranged around the spiral groove (137), and the abrasion-reducing sheet (139) is used for abutting the auger rod (12).

9. A cement-soil pressure-grouting pile planting process, comprising the cement-soil pressure-grouting pile planting equipment in any one of claims 1-9, and adopting the following method: A. The drilling mechanism (1) first drills the auger rod (12) into the ground, and simultaneously, the vibrator hammer (15) synchronously follows the auger rod (12) to the design elevation with the casing (14); B. The auger drilling stops the movement in the vertical direction, continuously rotates to take out the soil, until the soil at the elevation is completely taken out, at this time, the soil is preliminarily screened through the primary screening net (133); C. The soil is sent out along the soil taking hopper (131) and carried to the screening mechanism (2), the screening mechanism (2) screens the soil and sand according to the fineness, and the fine soil and sand is sent into the reusable tank (22) to be stirred into the slurry; D. The slurry is introduced into the auger rod (12) through the grouting flow channel (121), the slurry is discharged from the bottom of the auger rod (12), and simultaneously, the auger rod (12) is moved upwards; E. After the auger rod (12) is completely taken out, the outer cylinder is knocked and planted by the free fall, and the outer cylinder is located between the casing (14) and the pile body; F. After the pile body and the outer cylinder are formed, the free fall hammer (31) is lifted out, the casing (14) is moved upwards and taken out by the vibrator hammer (15) vibration, so that the pile planting is completed.

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