A test pile double-tube pile sleeve and a preparation method thereof

Abstract

The application discloses a kind of test pile double-tube pile sleeve and preparation method thereof, including inner cylinder body, inner support component, closed component, positioning assembly, middle outer tube, bottom outer tube, first limit block, second limit block, top outer tube, reinforcing support and third limit block, the bottom of the middle outer tube is welded with bottom outer tube, and the inner wall top end of bottom outer tube is uniformly provided with first limit block, first limit block is slidably connected on inner cylinder body, the present application, positioning assembly is positioned to inner cylinder during hoisting, and the installation quality of pile sleeve is guaranteed;The gap between top outer tube and inner cylinder body is closed using closed component, improve the sealing effect of pile sleeve, prevent soil and gravel from falling into the gap between outer tube and inner cylinder during construction, guarantee the actual effect of pile sleeve clearance friction;Inner cylinder body is assisted and supported using the inner support component, to avoid deformation of inner cylinder body during hoisting, improve the practicability of pile sleeve.

Description

Technical Field

[0001] The invention relates to the technical field of building testing, in particular to a test pile double-tube pile sleeve and a preparation method thereof. Background Art

[0002] The invention relates to a kind of pile driving device for pile driving, which is a kind of pile driving device for pile foundation, and a kind of pile driving device for pile foundation is used for pile driving. The pile driving device is used for pile driving, and a pile driving device is used for pile driving. The pile driving device is used for pile driving, and a pile driving device is used for pile driving. The pile driving device is used for pile driving, and a pile driving device is used for pile driving. The pile driving device is used for pile driving, and a pile driving device is used for pile driving. The pile driving device is used for pile driving, and a pile driving device is used for pile driving. The pile driving device is used for pile driving, and a pile driving device is used for pile driving. Summary of the Invention

[0003] The object of the present invention is to provide a double-tube pile sleeve for a trial pile and a preparation method thereof, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-tube pile sleeve for a test pile, comprising an inner tube body, an inner support assembly, a closing assembly, a positioning assembly, a middle outer tube, a bottom outer tube, a first limit block, a second limit block, a top outer tube, a first reinforcement ring, a first reinforcement platform, a second reinforcement platform, a second reinforcement ring, a reinforcement rod, a reinforcement bracket and a third limit block, the bottom of the middle outer tube is welded with the bottom outer tube, and the top end of the inner wall of the bottom outer tube is evenly provided with a first limit block, the first limit block is slidably connected to the inner tube body, and the top end of the inner tube body is welded with a lifting ring in the inner support assembly.

[0005] Preferably, the inner support assembly consists of a lifting ring, a connecting rod, a support frame, a roller bracket and a support roller. The interior of the lifting ring is evenly provided with connecting rods, and one end of the connecting rod is fixed to the top of the support frame. The support frame is evenly provided with roller brackets, and the roller brackets are provided with support rollers. The support rollers are rollingly connected to the inner wall of the inner cylinder body.

[0006] Preferably, second limiting blocks are evenly arranged on the top of the inner cylinder body, and the second limiting blocks are slidably connected to the inner wall of the top outer cylinder, and a connecting ring in the closed assembly is welded to the top of the top outer cylinder.

[0007] Preferably, the closing assembly consists of a connecting ring, a connecting block, a closing bracket and a closing block. The connecting blocks are evenly arranged on the inner wall of the connecting ring, and the connecting blocks are slidably connected to the inner cylinder body. A closing bracket is welded to the top of the connecting ring, and closing blocks are evenly arranged on the inner wall of the closing bracket. The closing blocks are respectively fitted with the inner cylinder body and the connecting block.

[0008] Preferably, a positioning block in a positioning assembly is slidably connected to the outer wall of the top outer cylinder, and the positioning assembly consists of a positioning block, a positioning ring, a reinforcement shell, a support foot and a fixed column. The positioning block is evenly welded on the inner wall of the positioning ring, and support feet are evenly arranged on the side wall of the positioning ring. Fixed columns are sleeved in the through holes opened in the support feet, and a reinforcement shell is welded to the bottom of the positioning ring.

[0009] Preferably, a first reinforcement ring is welded to the bottom of the top outer cylinder, and the first reinforcement ring is sleeved on the first reinforcement platform, the top end of the first reinforcement platform is sleeved on the bottom of the top outer cylinder, and the first reinforcement platform is slidably connected to the inner cylinder body.

[0010] Preferably, a second reinforcement platform is welded to the bottom of the first reinforcement platform, and a second reinforcement ring is sleeved on the second reinforcement platform, the second reinforcement ring is welded to the top of the middle outer cylinder, and the middle outer cylinder is sleeved on the bottom end of the second reinforcement platform, the second reinforcement platform is slidably connected to the inner cylinder body, and reinforcement rods are evenly arranged at the bottom of the second reinforcement platform, reinforcement brackets are welded on the reinforcement rods, and a third limit block is arranged at the bottom of the reinforcement rod, one side of the third limit block is slidably connected to the inner wall of the middle outer cylinder, and the other side of the third limit block is slidably connected to the inner cylinder body.

[0011] A preparation method for a double-tube pile sleeve for a test pile comprises the following steps: step 1, installing a positioning assembly; step 2, assembling an outer tube; step 3, hoisting the outer tube; step 4, hoisting the inner tube; step 5, reinforcing and sealing;

[0012] In the above step 1, a preset hole is drilled at the preset position of the test pile, and then the reinforcement shell is welded to the bottom of the positioning ring, and then the reinforcement shell is sleeved on the top of the preset hole, and then the support foot and the positioning ring are fixed by the fixing column to complete the installation of the positioning assembly;

[0013] In the above step 2, the first reinforcement ring is fixedly sleeved on the first reinforcement platform, and the top end of the first reinforcement platform is sleeved on the bottom of the top outer tube, and then the first reinforcement ring is welded to the bottom of the top outer tube, and then the second reinforcement ring is fixedly sleeved on the second reinforcement platform, and the bottom end of the second reinforcement platform is sleeved on the top of the middle outer tube, and at the same time, the reinforcement rod, reinforcement bracket and third limit block at the bottom of the second reinforcement platform are sleeved in the middle outer tube, and then the second reinforcement ring is welded to the top of the middle outer tube, and then the bottom outer tube is welded to the bottom of the middle outer tube, so that the first limit block at the top of the bottom outer tube is sleeved on the bottom end of the inner wall of the middle outer tube, and then the second reinforcement platform is welded to the bottom of the first reinforcement platform to complete the assembly of the outer tube components;

[0014] In the above step 3, the bottom outer tube, the middle outer tube and the top outer tube are hoisted and inserted into the positioning ring in sequence using a hoisting device. The positioning block is used to limit the hoisting process. The bottom outer tube is placed at the bottom of the preset hole. Gravel is then filled into the gap between the positioning ring and the top outer tube for pre-fixation. The top outer tube is then pressed with a vibrating hammer to sink the bottom outer tube into the soil, completing the hoisting process of the outer tube.

[0015] In the above step 4, the support frame is placed in the inner cylinder body, the support roller is connected to the inner wall of the inner cylinder body by rolling, and then the lifting ring is welded to the top of the inner cylinder body, and then the connecting ring is welded to the top of the top outer cylinder, and then the lifting ring and the inner cylinder body are placed into the interior of the outer cylinder component using a lifting device. During the process, the inner cylinder body is limited by the connecting block. After the inner cylinder body is placed at the bottom of the preset hole, the inner cylinder body and the lifting ring are cut and separated, and then the lifting ring and the support frame are removed from the inner cylinder body using a lifting device, and then the inner cylinder body is pressed with a vibrating hammer to fix the inner cylinder body;

[0016] In the above step 5, the closing bracket is welded and fixed to the top of the connecting ring, and the closing block is respectively fitted with the inner cylinder body and the connecting block, and the gap between the top outer cylinder and the inner cylinder body is closed by the closing block.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the double-tube pile sleeve for trial piles and the preparation method thereof utilize the provided fixing column to fix the positioning ring at a preset point, and then utilize the positioning block on the positioning ring to limit the lifting process of the inner tube during the lifting process, thereby ensuring the installation quality of the pile sleeve; utilize the mutual cooperation of the connecting block and the closing block on the connecting ring to close the gap between the top outer tube and the inner tube body, thereby improving the sealing effect of the pile sleeve and preventing soil and gravel from falling into the gap between the outer tube and the inner tube during construction, thereby ensuring the actual effect of the pile sleeve in clearing friction resistance; utilize the provided lifting ring to fix the supporting frame in the inner tube body, and then utilize the supporting rollers on the supporting frame to provide auxiliary support to the inner tube body, thereby avoiding deformation of the inner tube body during the lifting process and improving the practicality of the pile sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded view of the overall structure of the present invention;

[0019] Figure 2 for Figure 1 A magnified view of the local structure of area A in the middle;

[0020] Figure 3 for Figure 1 A magnified view of the local structure of area B in the middle;

[0021] Figure 4 for Figure 1 A magnified view of the local structure of the middle C area;

[0022] Figure 5 for Figure 1 A magnified view of the local structure of the middle D area;

[0023] Figure 6 It is a top view of the overall structure of the present invention;

[0024] Figure 7 It is a three-dimensional diagram of the overall structure of the present invention;

[0025] Figure 8 for Figure 7 A magnified view of the local structure of the middle E region;

[0026] Figure 9 for Figure 7 A magnified view of the local structure of the middle F region;

[0027] Figure 10 is a flow chart of the method of the present invention;

[0028] In the figure: 1. Inner tube body; 3. Inner support assembly; 4. Closing assembly; 5. Positioning assembly; 6. Middle outer tube; 7. Bottom outer tube; 8. First limit block; 9. Second limit block; 10. Top outer tube; 11. First reinforcement ring; 12. First reinforcement platform; 13. Second reinforcement platform; 14. Second reinforcement ring; 15. Reinforcement rod; 16. Reinforcement bracket; 17. Third limit block; 301. Lifting ring; 302. Connecting rod; 303. Support frame; 304. Roller bracket; 305. Support roller; 401. Connecting ring; 402. Connecting block; 403. Closing bracket; 404. Closing block; 501. Positioning block; 502. Positioning ring; 503. Reinforcement shell; 504. Support foot; 505. Fixing column. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1-9The application provides a test pile double-pipe pile sleeve, which comprises an inner cylinder body 1, an inner support assembly 3, a closing assembly 4, a positioning assembly 5, a middle outer cylinder 6, a bottom outer cylinder 7, a first limiting block 8, a second limiting block 9, a top outer cylinder 10, a first reinforcing ring 11, a first reinforcing table 12, a second reinforcing table 13, a second reinforcing ring 14, a reinforcing rod 15, a reinforcing support 16 and a third limiting block 17. The bottom outer cylinder 7 is welded to the bottom of the middle outer cylinder 6, and the inner wall top end of the bottom outer cylinder 7 is uniformly provided with the first limiting block 8. The first limiting block 8 is slidingly connected to the inner cylinder body 1. The top end of the inner cylinder body 1 is welded with a lifting ring 301 in the inner support assembly 3. The inner support assembly 3 is composed of the lifting ring 301, a connecting rod 302, a support framework 303, a roller support 304 and a supporting roller 305. The inside of the lifting ring 301 is uniformly provided with the connecting rod 302. One end of the connecting rod 302 is fixed to the top of the support framework 303. The support framework 303 is uniformly provided with the roller support 304, and the roller support 304 is provided with the supporting roller 305. The supporting roller 305 is rollingly connected to the inner wall of the inner cylinder body 1. The top of the inner cylinder body 1 is uniformly provided with the second limiting block 9, and the second limiting block 9 is slidingly connected to the inner wall of the top outer cylinder 10. The top of the top outer cylinder 10 is welded with a connecting ring 401 in the closing assembly 4. The closing assembly 4 is composed of the connecting ring 401, a connecting block 402, a closing support 403 and a closing block 404. The inner wall of the connecting ring 401 is uniformly provided with the connecting block 402, and the connecting block 402 is slidingly connected to the inner cylinder body 1. The top of the connecting ring 401 is welded with the closing support 403, and the inner wall of the closing support 403 is uniformly provided with the closing block 404. The closing block 404 is respectively attached to the inner cylinder body 1 and the connecting block 402. The outer wall of the top outer cylinder 10 is slidingly connected with a positioning block 501 in the positioning assembly 5. The positioning assembly 5 is composed of the positioning block 501, a positioning ring 502, a reinforcing shell 503, a supporting leg 504 and a fixed column 505. The positioning block 501 is uniformly welded to the inner wall of the positioning ring 502. The side wall of the positioning ring 502 is uniformly provided with the supporting leg 504. The supporting leg 504 is provided with the fixed column 505. The bottom of the positioning ring 502 is welded with the reinforcing shell 503. The bottom of the top outer cylinder 10 is welded with the first reinforcing ring 11, and the first reinforcing ring 11 is sleeved on the first reinforcing table 12. The top end of the first reinforcing table 12 is sleeved on the bottom of the top outer cylinder 10, and the first reinforcing table 12 is slidingly connected to the inner cylinder body 1. The bottom of the first reinforcing table 12 is welded with the second reinforcing table 13, and the second reinforcing table 13 is sleeved with the second reinforcing ring 14. The second reinforcing ring 14 is welded to the top of the middle outer cylinder 6, and the middle outer cylinder 6 is sleeved to the bottom end of the second reinforcing table 13. The second reinforcing table 13 is slidingly connected to the inner cylinder body 1, and the bottom of the second reinforcing table 13 is uniformly provided with the reinforcing rod 15. The reinforcing rod 15 is welded with the reinforcing support 16, and the bottom of the reinforcing rod 15 is provided with the third limiting block 17.One side of the third limit block 17 is slidably connected to the inner wall of the middle outer cylinder 6, and the other side of the third limit block 17 is slidably connected to the inner cylinder body 1.

[0031] See also Figure 10 The present invention provides an embodiment: a method for preparing a double-tube pile sleeve for a test pile, comprising the following steps: step 1, installing a positioning assembly; step 2, assembling an outer tube; step 3, hoisting the outer tube; step 4, hoisting the inner tube; step 5, reinforcing and sealing;

[0032] In the above step 1, a preset hole is drilled at the preset position of the test pile, and then the reinforcement shell 503 is welded to the bottom of the positioning ring 502, and then the reinforcement shell 503 is sleeved on the top of the preset hole, and then the support leg 504 and the positioning ring 502 are fixed by the fixing column 505 to complete the installation of the positioning assembly;

[0033] In the above step 2, the first reinforcement ring 11 is fixedly sleeved on the first reinforcement platform 12, and the top of the first reinforcement platform 12 is sleeved on the bottom of the top outer tube 10, and then the first reinforcement ring 11 is welded to the bottom of the top outer tube 10, and then the second reinforcement ring 14 is fixedly sleeved on the second reinforcement platform 13, and the bottom of the second reinforcement platform 13 is sleeved on the top of the middle outer tube 6, and at the same time, the reinforcement rod 15, reinforcement bracket 16 and third limit block 17 at the bottom of the second reinforcement platform 13 are sleeved in the middle outer tube 6, and then the second reinforcement ring 14 is welded to the top of the middle outer tube 6, and then the bottom outer tube 7 is welded to the bottom of the middle outer tube 6, so that the first limit block 8 at the top of the bottom outer tube 7 is sleeved on the bottom end of the inner wall of the middle outer tube 6, and then the second reinforcement platform 13 is welded to the bottom of the first reinforcement platform 12 to complete the assembly of the outer tube components;

[0034] In the above step three, the bottom outer tube 7, the middle outer tube 6 and the top outer tube 10 are hoisted and extended into the positioning ring 502 in sequence using a hoisting device. At the same time, the positioning block 501 is used to limit the hoisting process. The bottom outer tube 7 is placed at the bottom of the preset hole. Then, gravel is filled in the gap between the positioning ring 502 and the top outer tube 10 for pre-fixation. Subsequently, a vibrating hammer is used to press the top outer tube 10 so that the bottom outer tube 7 is submerged in the soil, completing the hoisting process of the outer tube;

[0035] In the above step 4, the support skeleton 303 is placed in the inner cylinder body 1, so that the support roller 305 is rolled and connected to the inner wall of the inner cylinder body 1, and then the lifting ring 301 is welded to the top of the inner cylinder body 1, and then the connecting ring 401 is welded to the top of the top outer cylinder 10, and then the lifting ring 301 and the inner cylinder body 1 are placed into the interior of the outer cylinder component using a lifting device. During the process, the inner cylinder body 1 is limited by the connecting block 402. After the inner cylinder body 1 is placed at the bottom of the preset hole, the inner cylinder body 1 and the lifting ring 301 are cut and separated, and then the lifting ring 301 and the support skeleton 303 are removed from the inner cylinder body 1 using a lifting device, and then the inner cylinder body 1 is pressed with a vibration hammer to fix the inner cylinder body 1;

[0036] In the above step five, the closing bracket 403 is welded and fixed to the top of the connecting ring 401, and the closing block 404 is respectively fitted with the inner cylinder body 1 and the connecting block 402, and the closing block 404 is used to close the gap between the top outer cylinder 10 and the inner cylinder body 1.

[0037] Based on the above, the advantage of the present invention is that, the present invention utilizes the fixed column 505 that is provided to fix the positioning ring 502 on the preset point, and then utilizes the positioning block 501 on the positioning ring 502 to limit the lifting process of the inner tube during the lifting process, thereby ensuring the installation quality of the pile sleeve; utilizes the mutual cooperation of the connecting block 402 and the closing block 404 on the connecting ring 401 to seal the gap between the top outer tube 10 and the inner tube body 1, thereby improving the sealing effect of the pile sleeve, preventing soil and gravel from falling into the gap between the outer tube and the inner tube during the construction process, thereby ensuring the actual effect of the pile sleeve clearing friction resistance; utilizes the lifting ring 301 that is provided to fix the support skeleton 303 in the inner tube body 1, and then uses the support roller 305 on the support skeleton 303 to provide auxiliary support to the inner tube body 1, avoids the inner tube body 1 from being deformed during the lifting process, and improves the practicality of the pile sleeve.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A double-tube pile sleeve for a test pile, comprising an inner tube body (1), an inner support assembly (3), a closing assembly (4), a positioning assembly (5), a middle outer tube (6), a bottom outer tube (7), a first stopper (8), a second stopper (9), a top outer tube (10), a first reinforcement ring (11), a first reinforcement platform (12), a second reinforcement platform (13), a second reinforcement ring (14), a reinforcement rod (15), a reinforcement bracket (16) and a third stopper (17), characterized in that: The bottom of the middle outer cylinder (6) is welded with a bottom outer cylinder (7), and the top of the inner wall of the bottom outer cylinder (7) is evenly provided with a first limit block (8), the first limit block (8) is slidably connected to the inner cylinder body (1), and the top of the inner cylinder body (1) is welded with a lifting ring (301) in the inner support assembly (3); The inner support assembly (3) is composed of a lifting ring (301), a connecting rod (302), a support frame (303), a roller bracket (304) and a support roller (305); the connecting rods (302) are evenly arranged inside the lifting ring (301), and one end of the connecting rod (302) is fixed to the top of the support frame (303); the roller brackets (304) are evenly arranged on the support frame (303), and the roller brackets (304) are provided with support rollers (305); the support rollers (305) are rollingly connected to the inner wall of the inner cylinder body (1); The top of the inner cylinder body (1) is evenly provided with a second limiting block (9), and the second limiting block (9) is slidably connected to the inner wall of the top outer cylinder (10), and the top of the top outer cylinder (10) is welded with a connecting ring (401) in the closing component (4); The closing assembly (4) is composed of a connecting ring (401), a connecting block (402), a closing bracket (403) and a closing block (404); the connecting blocks (402) are evenly arranged on the inner wall of the connecting ring (401), and the connecting blocks (402) are slidably connected to the inner cylinder body (1); the closing bracket (403) is welded to the top of the connecting ring (401), and the closing blocks (404) are evenly arranged on the inner wall of the closing bracket (403); the closing blocks (404) are respectively fitted to the inner cylinder body (1) and the connecting block (402); A positioning block (501) in a positioning assembly (5) is slidably connected to the outer wall of the top outer cylinder (10). The positioning assembly (5) is composed of a positioning block (501), a positioning ring (502), a reinforcement shell (503), a support leg (504) and a fixed column (505). The positioning block (501) is evenly welded to the inner wall of the positioning ring (502), and the side wall of the positioning ring (502) is evenly provided with a support leg (504). The fixed column (505) is sleeved in a through hole provided in the support leg (504). The bottom of the positioning ring (502) is welded with a reinforcement shell (503). A first reinforcement ring (11) is welded to the bottom of the top outer cylinder (10), and the first reinforcement ring (11) is sleeved on the first reinforcement platform (12). The top end of the first reinforcement platform (12) is sleeved on the bottom of the top outer cylinder (10), and the first reinforcement platform (12) is slidably connected to the inner cylinder body (1); A second reinforcement platform (13) is welded to the bottom of the first reinforcement platform (12), and a second reinforcement ring (14) is sleeved on the second reinforcement platform (13). The second reinforcement ring (14) is welded to the top of the middle outer cylinder (6), and the middle outer cylinder (6) is sleeved on the bottom end of the second reinforcement platform (13). The second reinforcement platform (13) is slidably connected to the inner cylinder body (1), and reinforcement rods (15) are evenly arranged at the bottom of the second reinforcement platform (13). A reinforcement bracket (16) is welded to the reinforcement rod (15), and a third limit block (17) is arranged at the bottom of the reinforcement rod (15). One side of the third limit block (17) is slidably connected to the inner wall of the middle outer cylinder (6), and the other side of the third limit block (17) is slidably connected to the inner cylinder body (1).

2. The method for preparing the double-tube pile sleeve for the trial pile according to claim 1 comprises the following steps: Step 1: Install the positioning assembly; Step 2: Assemble the outer cylinder; Step 3: Hoist the outer cylinder; Step 4: Hoist the inner cylinder; Step 5: Reinforce and seal; It is characterized by: In the above step 1, a preset hole is drilled at a preset position of the test pile, and then the reinforcement shell (503) is welded to the bottom of the positioning ring (502), and then the reinforcement shell (503) is sleeved on the top of the preset hole, and then the support leg (504) and the positioning ring (502) are fixed by the fixing column (505), thereby completing the installation of the positioning assembly; In the above step 2, the first reinforcement ring (11) is fixedly sleeved on the first reinforcement platform (12), and the top of the first reinforcement platform (12) is sleeved on the bottom of the top outer tube (10), and then the first reinforcement ring (11) is welded to the bottom of the top outer tube (10), and then the second reinforcement ring (14) is fixedly sleeved on the second reinforcement platform (13), and the bottom of the second reinforcement platform (13) is sleeved on the top of the middle outer tube (6), and at the same time, the bottom of the second reinforcement platform (13) is fixedly sleeved on the second reinforcement platform (13). The reinforcing rod (15), the reinforcing bracket (16) and the third limiting block (17) are sleeved in the middle outer tube (6), and then the second reinforcing ring (14) is welded to the top of the middle outer tube (6), and then the bottom outer tube (7) is welded to the bottom of the middle outer tube (6), so that the first limiting block (8) at the top of the bottom outer tube (7) is sleeved on the bottom end of the inner wall of the middle outer tube (6), and then the second reinforcing platform (13) is welded to the bottom of the first reinforcing platform (12), completing the assembly of the outer tube components; In the above step 3, the bottom outer cylinder (7), the middle outer cylinder (6) and the top outer cylinder (10) are sequentially hoisted and extended into the positioning ring (502) using a hoisting device, and the hoisting process is limited by the positioning block (501). The bottom outer cylinder (7) is placed at the bottom of the preset hole, and then gravel is filled in the gap between the positioning ring (502) and the top outer cylinder (10) for pre-fixation. Subsequently, a vibrating hammer is used to press the top outer cylinder (10) so that the bottom outer cylinder (7) is submerged in the soil, completing the hoisting process of the outer cylinder; In the above step 4, the support frame (303) is placed in the inner cylinder body (1), and the support roller (305) is connected to the inner wall of the inner cylinder body (1) by rolling, and then the lifting ring (301) is welded to the top of the inner cylinder body (1), and then the connecting ring (401) is welded to the top of the top outer cylinder (10), and then the lifting ring (301) and the inner cylinder body (1) are placed inside the outer cylinder component using a lifting device, and the inner cylinder body (1) is limited by the connecting block (402) during the process. After the inner cylinder body (1) is placed at the bottom of the preset hole, the inner cylinder body (1) and the lifting ring (301) are cut and separated, and then the lifting ring (301) and the support frame (303) are taken out from the inner cylinder body (1) using a lifting device, and then the inner cylinder body (1) is pressed with a vibration hammer to fix the inner cylinder body (1); In the above step 5, the closing bracket (403) is welded and fixed to the top of the connecting ring (401), and the closing block (404) is respectively fitted with the inner cylinder body (1) and the connecting block (402), and the gap between the top outer cylinder (10) and the inner cylinder body (1) is closed by the closing block (404).

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