CN117967197A - Bridge pile foundation reaming construction process - Google Patents
Bridge pile foundation reaming construction process Download PDFInfo
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- CN117967197A CN117967197A CN202410300258.7A CN202410300258A CN117967197A CN 117967197 A CN117967197 A CN 117967197A CN 202410300258 A CN202410300258 A CN 202410300258A CN 117967197 A CN117967197 A CN 117967197A
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- reaming
- fixedly connected
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- pile
- positioning
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000009527 percussion Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 28
- 238000005553 drilling Methods 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 17
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 17
- 241001330002 Bambuseae Species 0.000 abstract description 17
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 17
- 239000011425 bamboo Substances 0.000 abstract description 17
- 239000002689 soil Substances 0.000 abstract description 17
- 238000009434 installation Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000007711 solidification Methods 0.000 description 6
- 230000008023 solidification Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000010865 sewage Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a bridge pile foundation reaming construction process, which relates to the technical field of bridge pile foundations and comprises the following steps of; burying pile casings at preselected positions, positioning a drill rig frame body in a field, and constructing a drill bit in parallel for two times to form two pile foundation holes in parallel; performing reaming operation by adopting a percussion bit, and connecting and installing the reaming bit; thereby make rotary vane rotate through the rotation that expands a section of thick bamboo, thereby the frame body makes to expand a section of thick bamboo down sliding fit rotary vane take out soil, again with the bottom department that expands a section of thick bamboo of electric putter installation branch, the rotation of connecting the drill bit then makes the positioning shell rotate, the rotation of positioning shell is thereby the reaming head rotates and reams, the operation of No. two cylinders can be the expansion plate slip, the slip of expansion plate then can adjust the bore of the reaming head reaming, carry out reaming operation according to the work demand, do not need to switch reaming equipment and carry out reaming work alone, thereby improve bridge pile foundation reaming efficiency of construction.
Description
Technical Field
The invention relates to the technical field of bridge pile foundations, in particular to a bridge pile foundation reaming construction process.
Background
The bridge is a structure erected on rivers, lakes and seas to enable vehicles, pedestrians and the like to pass smoothly, and the pile foundation is a deep foundation formed by piles and pile caps connected with pile tops or a single pile foundation formed by connecting the piles with the pile foundation, which is called pile foundation for short.
The Chinese patent with the publication number of CN208996640U discloses a reaming device of a reaming drilling machine based on pile foundation engineering, which comprises a main shaft, a fixed steel frame and a limiting cylinder, wherein the bottom end of the main shaft penetrates through the surface of the fixed steel frame and extends to the lower part of the fixed steel frame, and the surface of the main shaft is in sliding connection with the inner surface of the fixed steel frame. According to the scheme, the second hydraulic oil cylinder is used for controlling the stretching degree of the first connecting steel rod and the second connecting steel rod so as to control the size of the flaring caliber, so that the construction speed of engineering is increased, and the working efficiency is improved;
the defects of the prior art scheme are that: the scheme can control the size of the flaring caliber, but can not drill a bridge pile foundation hole, two kinds of equipment are needed to be used for the flaring operation of the bridge pile foundation, the soil in the hole is taken out by using the spiral column to rotate, reaming is carried out by reaming equipment, and the equipment is very inconvenient to switch back and forth.
Disclosure of Invention
The invention aims to provide a bridge pile foundation reaming construction process which aims to solve the technical problem that bridge pile foundation reaming switching equipment is inconvenient in the prior art.
The technical problems to be solved by the invention can be realized by the following technical scheme:
a bridge pile foundation reaming construction process comprises the following steps:
s1, burying pile casings at preselected positions, placing a drill frame body in place, and constructing a drill bit in parallel for two times to form two pile foundation holes in parallel;
S2, reaming operation is carried out by adopting a percussion bit, the reaming bit is connected and installed, and the diameter of a pile foundation hole is enlarged to a designed size;
S3, after the impact reaming operation is completed, the prepared slurry is poured into pile foundation holes, a scraper type slag removal drilling tool is replaced, a drill bit is put into the bottom, and a drill rod is slowly rotated, so that coarse slag is primarily cleaned; and (3) after the hole cleaning is finished, the prefabricated reinforcement cage can be poured with cement to finish the pile foundation concrete pouring process.
As a further scheme of the invention: the pile expanding device comprises a machine frame body in the step S1, wherein a pile expanding cylinder is arranged at the side end of the machine frame body; the outer side wall of the pile expansion cylinder is fixedly connected with a rotary blade; a positioning frame is fixedly connected to the side end of the frame body; the bottom end of the pile expansion cylinder is connected with a connecting drill bit; the outer side wall of the connecting drill bit is fixedly connected with a positioning shell; the inner side wall of the positioning shell is fixedly connected with a second cylinder; the side end of the second cylinder is fixedly connected with a telescopic plate; and a reaming head is fixedly connected to the side end of the expansion plate.
As a further scheme of the invention: a first cylinder is fixedly connected in the expansion plate; the side end of the first cylinder is connected with a vibration ramming rod, and the inside of the reaming head is connected with the vibration ramming rod in a sliding manner.
As a further scheme of the invention: the bottom end of the pile expanding cylinder is spliced with a connecting block, and the bottom end of the connecting block is fixedly connected with a connecting drill bit; and the connecting bolts are connected with the inner threads of the connecting blocks.
As a further scheme of the invention: a material cavity is formed in the pile expanding cylinder; a concrete barrel is fixedly connected to the top end of the pile expansion cylinder; a material guide pipe is fixedly connected to the side end of the concrete barrel; an electric push rod is fixedly connected to the inner side wall of the top end of the concrete barrel; the bottom end of the electric push rod is fixedly connected with a sliding rod, and the sliding rod is connected inside the material cavity in a sliding manner; and a plurality of groups of material placing rods are fixedly connected to the outer side wall of the sliding rod.
As a further scheme of the invention: a concrete hole is formed in the pile expanding cylinder; a pushing plate is fixedly connected to the side end of the sliding rod, and the pushing plate is connected to the inside of the concrete hole in a sliding manner; a pushing sheet is fixedly connected to the top end of the pushing plate; and a magnet block is fixedly connected to the bottom end of the pushing plate.
As a further scheme of the invention: a positioning bottom plate is fixedly connected to the bottom end of the positioning frame; a positioning inserted rod is rotatably connected in the positioning bottom plate; the top end of the positioning inserted link is fixedly connected with a rotary disk.
As a further scheme of the invention: the inner side wall of the positioning frame is fixedly connected with a material pumping pump; a suction pipe is fixedly connected to the side end of the suction pump; the side end of the positioning bottom plate is connected with a limited material plate in a threaded manner, and a rotating blade is connected in the material limiting plate in a rotating manner.
The invention has the beneficial effects that: through the rotation that expands a section of thick bamboo thereby makes rotating vane rotate, the frame body makes to expand a section of thick bamboo down sliding fit rotating vane take out soil, the bottom department that expands a section of thick bamboo is installed to electric putter again, thereby expand the rotation of a section of thick bamboo and make the connecting bit rotate, the rotation of connecting bit and then make the positioning shell rotate, the rotation of positioning shell is thereby the reaming head rotates and reams, the operation of No. two cylinders can be the expansion plate slip, the aperture of reaming head reaming can be adjusted in the slip of expansion plate then, carry out the reaming operation according to the work demand, do not need to switch reaming equipment and carry out reaming work alone, thereby improve bridge pile foundation reaming efficiency of construction.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a flow chart of the process steps of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is a schematic diagram of the structure of the present invention;
FIG. 4 is a schematic view of a pile extension cylinder structure in the invention;
FIG. 5 is a perspective view of the overall structure of the positioning shell of the present invention;
FIG. 6 is a schematic view of the overall structure of the expansion plate according to the present invention;
fig. 7 is a perspective view of a positioning plunger structure according to the present invention.
In the figure: 1. a frame body; 2. a positioning frame; 3. expanding a pile cylinder; 4. rotating the blades; 5. connecting a drill bit; 6. positioning a shell; 7. a telescoping plate; 8. a reaming head; 9. vibrating the tamper; 10. a first air cylinder; 11. a second cylinder; 12. a connecting block; 13. a connecting bolt; 14. a concrete barrel; 15. an electric push rod; 16. a material guiding pipe; 17. a slide bar; 18. a material placing rod; 19. a concrete hole; 20. a pushing plate; 21. a magnet block; 22. pushing the material sheet; 23. positioning a bottom plate; 24. positioning the inserted link; 25. a rotating disc; 26. a material limiting plate; 27. a material pump; 28. and a suction pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-7, a bridge pile foundation reaming construction process comprises the following steps:
s1, burying pile casings at preselected positions, entering a drilling machine frame body 1 into place, and constructing a drill bit in parallel for two times to form two pile foundation holes in parallel;
S2, reaming operation is carried out by adopting a percussion bit, the reaming bit is connected and installed, and the diameter of a pile foundation hole is enlarged to a designed size;
S3, after the impact reaming operation is completed, the prepared slurry is poured into pile foundation holes, a scraper type slag removal drilling tool is replaced, a drill bit is put into the bottom, and a drill rod is slowly rotated, so that coarse slag is primarily cleaned; and (3) after the hole cleaning is finished, the prefabricated reinforcement cage can be poured with cement to finish the pile foundation concrete pouring process.
In the S1, a frame body 1 is arranged, and a pile expanding cylinder 3 is arranged at the side end of the frame body 1; the outer side wall of the pile expansion cylinder 3 is fixedly connected with a rotary blade 4; a positioning frame 2 is fixedly connected to the side end of the frame body 1; the bottom end of the pile expansion cylinder 3 is connected with a connecting drill bit 5; the outer side wall of the connecting drill bit 5 is fixedly connected with a positioning shell 6; the inner side wall of the positioning shell 6 is fixedly connected with a second cylinder 11; the side end of the second air cylinder 11 is fixedly connected with a telescopic plate 7; and a reaming head 8 is fixedly connected to the side end of the expansion plate 7.
During operation, the position of the frame body 1 is moved to the appointed position, the frame body 1 is started to enable the pile enlarging cylinder 3 to rotate, the rotation of the pile enlarging cylinder 3 enables the rotary blade 4 to rotate, the frame body 1 enables the pile enlarging cylinder 3 to downwards slide to be matched with the rotary blade 4 to take out soil, then the electric push rod 15 is installed at the bottom end of the pile enlarging cylinder 3, the rotation of the pile enlarging cylinder 3 enables the connecting drill bit 5 to rotate, the connecting drill bit 5 rotates, the positioning shell 6 rotates, the reaming head 8 rotates to conduct reaming, the operation of the second cylinder 11 can be that the expansion plate 7 slides, the sliding of the expansion plate 7 can adjust the caliber of the reaming head 8, reaming operation is conducted according to working requirements, only the connecting drill bit 5 is required to be installed and connected at the bottom end of the pile enlarging cylinder 3, reaming operation can be conducted, and reaming operation is conducted independently without switching reaming equipment, so that bridge pile foundation reaming construction efficiency is improved.
A first cylinder 10 is fixedly connected inside the expansion plate 7; the side end of the first cylinder 10 is connected with a vibration tamping rod 9, and the inside of the reaming head 8 is connected with the vibration tamping rod 9 in a sliding manner.
During operation, the rotation of reamer head 8 can carry out reaming work, but can see soil solidification body in the reaming working process, leads to reamer head 8 rotation to be difficult to carry out the reaming operation, starts cylinder 10 in reamer head 8 reaming in-process to slide vibration rammer 9 in the inside of reamer head 8, the slip of vibration rammer 9 can strike soil solidification body, thereby is soil solidification body dismantlement, makes things convenient for reamer head 8 to carry out the reaming work, improves reamer head 8's reaming work efficiency.
The bottom end of the pile expanding cylinder 3 is inserted with a connecting block 12, and the bottom end of the connecting block 12 is fixedly connected with a connecting drill bit 5; the connecting block 12 is internally screwed with a connecting bolt 13.
During operation, can carry out reaming work through reaming head 8, the bottom department at pile extension section of thick bamboo 3 need be installed before reaming head 8 work, insert the top of connecting block 12 and expand the inside of the bottom of pile extension section of thick bamboo 3, insert connecting bolt 13 this moment and expand the inside of pile extension section of thick bamboo 3 and connecting block 12, rotate connecting bolt 13 and be connected with connecting block 12, can install connecting block 12 and fix the bottom department at pile extension section of thick bamboo 3 through connecting bolt 13, can conveniently be connected the installation to connecting drill bit 5 and pile extension section of thick bamboo 3 through the cooperation of connecting block 12 and connecting bolt 13, conveniently carry out reaming work through reaming head 8, need not switching equipment just can carry out reaming and soil and take out the operation.
A material cavity is formed in the pile expanding cylinder 3; the top end of the pile expansion cylinder 3 is fixedly connected with a concrete barrel 14; a material guide pipe 16 is fixedly connected to the side end of the concrete barrel 14; an electric push rod 15 is fixedly connected to the inner side wall of the top end of the concrete barrel 14; the bottom end of the electric push rod 15 is fixedly connected with a sliding rod 17, and the sliding rod 17 is connected inside the material cavity in a sliding manner; the outer side wall of the sliding rod 17 is fixedly connected with a plurality of groups of material arranging rods 18.
During operation, after reaming is finished, concrete needs to be filled, the concrete can enter the inside of the concrete barrel 14 through the material guide pipe 16, the concrete can enter the material cavity inside the pile extension barrel 3 through the concrete barrel 14, the concrete enters the bridge pile foundation hole from the bottom end of the pile extension barrel 3, the problem of blockage exists in the conveying process, the conveying speed of the concrete is reduced, the sliding rod 17 is enabled to slide up and down through the electric push rod 15, the sliding rod 17 slides to enable the swinging rod 18 to slide, the sliding of the swinging rod 18 can swing the position of the concrete in the material cavity, and the condition of blockage of the concrete is reduced, so that the conveying speed of the concrete is improved.
A concrete hole 19 is formed in the pile expanding cylinder 3; the side end of the sliding rod 17 is fixedly connected with a pushing plate 20, and the pushing plate 20 is slidably connected inside the concrete hole 19; a pushing plate 22 is fixedly connected to the top end of the pushing plate 20; the bottom end of the pushing plate 20 is fixedly connected with a magnet block 21.
During operation, concrete is discharged from the concrete hole 19 through the material cavity, the sliding of the sliding rod 17 slides from the pulling-down pushing plate 20, the repeated vertical sliding of the sliding rod 17 can enable the pushing plate 20 to repeatedly slide, and then the sliding of the pushing plate 20 enables the pushing plate 22 to repeatedly push the concrete in the concrete hole 19, so that the condition that the concrete is blocked in the concrete hole 19 is reduced, the concrete conveying speed is improved, the bridge pile foundation construction efficiency is improved, the pushing plate 20 and the swinging rod 18 are made of rubber materials, and the bridge pile foundation is convenient to convey.
A positioning bottom plate 23 is fixedly connected to the bottom end of the positioning frame 2; a positioning inserted rod 24 is rotatably connected to the inside of the positioning bottom plate 23; the top end of the positioning inserted link 24 is fixedly connected with a rotary disk 25.
Before working, the positions of the locating frame 2 and the frame body 1 are required to be fixed, after the frame body 1 and the locating frame 2 are fixed at the specified positions, a worker rotates the rotary disk 25 to enable the locating inserted rod 24 to rotate downwards, then the locating inserted rod 24 is inserted into soil, the position of the locating bottom plate 23 is fixed through the locating inserted rod 24, and therefore the positions of the locating frame 2 and the frame body 1 are fixed, shake of the positions of the locating frame 2 and the frame body 1 in the construction process is avoided, and the construction environment of bridge pile foundations is affected.
The inner side wall of the positioning frame 2 is fixedly connected with a material pump 27; a suction pipe 28 is fixedly connected to the side end of the suction pump 27; the side end of the positioning bottom plate 23 is connected with a limiting plate 26 in a threaded mode, and a rotating blade 4 is connected inside the limiting plate 26 in a rotating mode.
During operation, the rotation of rotary vane 4 can take out soil, can diffuse subaerial after the soil takes out, will limit flitch 26 to the outside department of rotary vane 4 before the work, carry out threaded connection with positioning bottom plate 23, limit flitch 26 can restrict the diffusion scope of soil, start and take out the material pump 27 and make the suction pipe 28 absorb the inside mud of limit flitch 26 and sewage, conveniently collect mud, sewage and handle, work environment around the mud pollution is reduced, make things convenient for the staff to carry out reaming work, also do not need the staff to collect mud, sewage alone and handle, thereby improve bridge pile foundation reaming work efficiency.
The working principle of the invention is as follows: the method comprises the steps that the position of a frame body 1 is moved to a designated position, the frame body 1 is started to enable a pile expanding cylinder 3 to rotate, the rotation of the pile expanding cylinder 3 enables a rotary blade 4 to rotate, the frame body 1 enables the pile expanding cylinder 3 to downwards slide to be matched with the rotary blade 4 to take out soil, then an electric push rod 15 is installed at the bottom end of the pile expanding cylinder 3, the rotation of the pile expanding cylinder 3 enables a connecting drill bit 5 to rotate, the rotation of the connecting drill bit 5 enables a positioning shell 6 to rotate, the rotation of the positioning shell 6 enables a reaming head 8 to rotate for reaming, the operation of a second cylinder 11 can be that a telescopic plate 7 slides, the sliding of the telescopic plate 7 can further adjust the caliber of the reaming head 8 for reaming, reaming operation is carried out according to working requirements, only the connecting drill bit 5 is installed and connected at the bottom end of the pile expanding cylinder 3, reaming operation can be carried out without switching reaming equipment to independently conduct reaming operation, and bridge pile foundation reaming construction efficiency is improved; the rotation of the reaming head 8 can perform reaming operation, but soil solidification bodies can be encountered in the reaming operation process, so that the reaming head 8 is hard to rotate for reaming operation, a first cylinder 10 is started in the reaming process of the reaming head 8, so that the vibrating rammer 9 slides in the reaming head 8, and the sliding of the vibrating rammer 9 can impact the soil solidification bodies, so that the soil solidification bodies are disintegrated, the reaming head 8 can conveniently perform reaming operation, and the reaming operation efficiency of the reaming head 8 is improved; can carry out reaming work through reaming head 8, the bottom department at pile extension section of thick bamboo 3 need be installed before reaming head 8 work, insert the top of connecting block 12 and expand the inside of the bottom of pile extension section of thick bamboo 3, insert connecting bolt 13 and expand the inside of pile extension section of thick bamboo 3 and connecting block 12 this moment, rotate connecting bolt 13 and be connected with connecting block 12, can install connecting block 12 and fix the bottom department at pile extension section of thick bamboo 3 through connecting bolt 13, can conveniently be connected the installation to connecting drill bit 5 and pile extension section of thick bamboo 3 through the cooperation of connecting block 12 and connecting bolt 13, conveniently carry out reaming work through reaming head 8, just can carry out reaming and soil and take out the operation need not switching equipment.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (8)
1. The bridge pile foundation reaming construction process is characterized by comprising the following steps of:
S1, burying pile casings at preselected positions, entering a drilling machine frame body (1) into place, and constructing a drill bit in parallel for two times to form two pile foundation holes in parallel;
S2, reaming operation is carried out by adopting a percussion bit, the reaming bit is connected and installed, and the diameter of a pile foundation hole is enlarged to a designed size;
S3, after the impact reaming operation is completed, the prepared slurry is poured into pile foundation holes, a scraper type slag removal drilling tool is replaced, a drill bit is put into the bottom, and a drill rod is slowly rotated, so that coarse slag is primarily cleaned; and (3) after the hole cleaning is finished, the prefabricated reinforcement cage can be poured with cement to finish the pile foundation concrete pouring process.
2. The bridge pile foundation reaming construction process according to claim 1, wherein the frame body (1) in the S1 is provided with a pile-reaming barrel (3) at the side end of the frame body (1); the outer side wall of the pile expansion cylinder (3) is fixedly connected with a rotary blade (4); a positioning frame (2) is fixedly connected to the side end of the frame body (1); the bottom end of the pile expansion cylinder (3) is connected with a connecting drill bit (5); the outer side wall of the connecting drill bit (5) is fixedly connected with a positioning shell (6); the inner side wall of the positioning shell (6) is fixedly connected with a second air cylinder (11); the side end of the second air cylinder (11) is fixedly connected with a telescopic plate (7); and a reaming head (8) is fixedly connected to the side end of the expansion plate (7).
3. The bridge pile foundation reaming construction process according to claim 2, wherein a first cylinder (10) is fixedly connected inside the expansion plate (7); the side end of the first cylinder (10) is connected with a vibrating ramming rod (9), and the inside of the reaming head (8) is connected with the vibrating ramming rod (9) in a sliding manner.
4. The bridge pile foundation reaming construction process according to claim 3, wherein the bottom end of the pile enlarging cylinder (3) is inserted with a connecting block (12), and the bottom end of the connecting block (12) is fixedly connected with a connecting drill bit (5); the connecting bolt (13) is connected with the internal thread of the connecting block (12).
5. The bridge pile foundation reaming construction process according to claim 4, wherein a material cavity is formed in the pile-reaming barrel (3); the top end of the pile expansion cylinder (3) is fixedly connected with a concrete barrel (14); a material guide pipe (16) is fixedly connected to the side end of the concrete barrel (14); an electric push rod (15) is fixedly connected to the inner side wall of the top end of the concrete barrel (14); the bottom end of the electric push rod (15) is fixedly connected with a sliding rod (17), and the sliding rod (17) is connected in the material cavity in a sliding manner; the outer side wall of the sliding rod (17) is fixedly connected with a plurality of groups of material placing rods (18).
6. The bridge pile foundation reaming construction process according to claim 5, wherein a concrete hole (19) is formed in the pile-reaming barrel (3); a pushing plate (20) is fixedly connected to the side end of the sliding rod (17), and the pushing plate (20) is slidably connected to the inside of the concrete hole (19); a pushing sheet (22) is fixedly connected to the top end of the pushing plate (20); the bottom end of the pushing plate (20) is fixedly connected with a magnet block (21).
7. The bridge pile foundation reaming construction process according to claim 6, wherein the bottom end of the locating rack (2) is fixedly connected with a locating bottom plate (23); a positioning inserted rod (24) is rotatably connected in the positioning bottom plate (23); the top end of the positioning inserted link (24) is fixedly connected with a rotary disk (25).
8. The bridge pile foundation reaming construction process according to claim 7, wherein the inner side wall of the positioning frame (2) is fixedly connected with a material pumping pump (27); a suction pipe (28) is fixedly connected to the side end of the suction pump (27); the side end of the positioning bottom plate (23) is connected with a limiting plate (26) in a threaded mode, and a rotating blade (4) is connected inside the limiting plate (26) in a rotating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410300258.7A CN117967197A (en) | 2024-03-15 | 2024-03-15 | Bridge pile foundation reaming construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410300258.7A CN117967197A (en) | 2024-03-15 | 2024-03-15 | Bridge pile foundation reaming construction process |
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| Publication Number | Publication Date |
|---|---|
| CN117967197A true CN117967197A (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410300258.7A Pending CN117967197A (en) | 2024-03-15 | 2024-03-15 | Bridge pile foundation reaming construction process |
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| Country | Link |
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| CN (1) | CN117967197A (en) |
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- 2024-03-15 CN CN202410300258.7A patent/CN117967197A/en active Pending
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