CN110130345B - Static pile machine and tubular pile welding method - Google Patents
Static pile machine and tubular pile welding method Download PDFInfo
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- CN110130345B CN110130345B CN201910402065.1A CN201910402065A CN110130345B CN 110130345 B CN110130345 B CN 110130345B CN 201910402065 A CN201910402065 A CN 201910402065A CN 110130345 B CN110130345 B CN 110130345B
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- pile
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- lead
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- magnetic head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
Abstract
The invention discloses a static pile machine and a method for welding tubular piles, wherein the static pile machine comprises a rack and a walking leg arranged below the rack, and a hydraulic driving part of the rack is provided with a hoop for hooping pile sections; the static pile press further comprises an upper welding assembly and a lower welding assembly, wherein the upper welding assembly comprises a first lead and a fixed pulley positioned at the top of a mast of the crane, the first lead bypasses the fixed pulley, and an upper magnetic head used for adsorbing a lower end plate of an upper pile section is arranged at the free end of the first lead; the lower welding assembly comprises a second lead and a mechanical arm, a lower magnetic head used for adsorbing an upper end plate of the lower pile section is arranged at the free end of the second lead, the mechanical arm comprises a horizontal driving cylinder and a pneumatic finger used for clamping the lower magnetic head, and a piston rod of the horizontal driving cylinder is connected with a fixing part of the pneumatic finger; the key of the method is as follows: and two ends of the two wires are respectively close to and electrified with two end plates of the upper pile section and the lower pile section to realize welding. The static pile machine and the welding method can realize automatic welding without manual operation.
Description
Technical Field
The invention relates to the technical field of pile foundation construction in civil engineering, in particular to a static pile machine with a welding auxiliary assembly and a method for welding a tubular pile by using the static pile machine.
Background
The pipe pile has various forms such as PHC, PC, PTC and the like, is a mature pile foundation construction process, and has the advantages of simple process, easy control of construction quality, high construction efficiency, short construction period, strong vertical bearing capacity and the like, so the pipe pile is widely applied all over the country.
The tubular pile in the prior art is mainly constructed by welding section by section, specifically, a lower pile section is sunk into a soil body, an upper pile section is suspended to aim at the lower pile section, the upper pile section is lowered to enable two end plates of the two pile sections to be close to each other, a circle is welded around the joint of the two end plates to enable the upper pile section and the lower pile section to be integrated, pile sinking is continued, the other section of pile section is hoisted in place, welding is carried out again, pile sinking is carried out again, and the process is repeated.
The static pressure method is a pile sinking process for pressing a pile into the soil by a static pile machine through counter-force provided by the dead weight of the static pile machine and a counter weight on a frame.
The static pile machine in the prior art comprises a frame and four walking type supporting legs which are arranged at the front, the rear, the left and the right, and are arranged below the frame, a control tower, a hydraulic driving part, a balancing weight and a crane for suspending an upper pile section are arranged on the frame, an alignment hole for the upper pile section to pass through is penetrated through the frame, and a hoop for hooping the upper pile section is arranged on the hydraulic driving part. The working process of the pile driver comprises the steps that the crane lifts and lowers the upper pile section, the upper pile section penetrates through the alignment hole and aligns with the lower pile section, the upper pile section and the lower pile section are welded, the anchor ear is driven by the hydraulic driving part to tightly hold the upper pile section, the supporting legs are contracted again to descend the frame, and the tubular pile is pressed down by utilizing the dead weight and the balance weight of the frame.
The construction method for tubular pile welding in the prior art has the following disadvantages: the welding operation needs to be carried out manually, particularly when the pile is sunk in a static pressure mode, workers need to drill into a narrow space below a frame of the static pressure machine and hold a welding gun to weld a circle in an annular mode, the welding labor intensity is high, the welding site condition is poor, the limitation on the space is large, the operating light condition is not good, the operation is inconvenient, the welding quality is difficult to guarantee, and even potential safety hazards exist.
Disclosure of Invention
The invention aims to solve the technical problem of providing a static pressure installation machine which can respectively butt-joint and conduct two leads of a welding circuit with two end plates of an upper pile section and a lower pile section.
The invention provides a static pile press, which comprises a pile body, a pile driving device and a pile driving device, wherein the pile driving device comprises a pile driving device, a pile driving device and a pile driving device; the walking type tubular pile support comprises a rack and walking type supporting legs arranged below the rack, wherein a control tower, a hydraulic driving part, a balancing weight and a crane are arranged on the rack, an alignment hole for a pile section of a tubular pile to pass through is penetrated in the rack, and a hoop for hooping the pile section is arranged on the hydraulic driving part; the static pile press further comprises an upper welding assembly and a lower welding assembly, wherein the upper welding assembly comprises a first lead and a fixed pulley positioned at the top of a mast of the crane, the first lead bypasses the fixed pulley, and an upper magnetic head used for adsorbing a lower end plate of an upper pile section is arranged at the free end of the first lead; the lower welding assembly comprises a second lead and a mechanical arm, a lower magnetic head used for adsorbing an upper end plate of the lower pile section is arranged at the free end of the second lead, the mechanical arm comprises a horizontal driving cylinder and a pneumatic finger used for clamping the lower magnetic head, and a piston rod of the horizontal driving cylinder is connected with a fixing part of the pneumatic finger.
Compared with the prior art, the static pressure pile machine adopting the structure has the following advantages.
The pile machine realizes butt joint and separation of two leads of a welding circuit and two end plates of an upper pile section and a lower pile section, particularly, a fixed pulley is used for lowering a first lead, an upper magnetic head is lowered to the elevation of a lower end plate of the upper pile section, and the upper magnetic head and the lower end plate are automatically in magnetic attraction butt joint; the first lead wire is pulled, so that the first lead wire can be automatically separated from the lower end plate; the pneumatic fingers are advanced or retracted towards the driving cylinder by utilizing the level of the mechanical arm, and the lower magnetic head is grasped or loosened by opening and closing the fingers, so that the magnetic adsorption butt joint of the lower magnetic head and the upper end plate of the lower pile section can be completed by grasping and advancing the lower magnetic head; then the pneumatic finger is loosened and retracted, so that the distance between the mechanical arm and the welding point can be kept during welding, and welding damage is avoided; after welding is finished, the pneumatic finger is advanced again, the lower magnetic head is grasped tightly, and then the pneumatic finger is retracted, so that the lower magnetic head is completely separated from the upper end plate, and interference to subsequent pile sinking is avoided; moreover, the magnetic head and the corresponding end plate are reasonably designed in an adsorption mode, the adsorption force is moderate, the current can be used for further increasing the suction force during electrifying so as to ensure that the lead and the corresponding end plate are firmly connected and the welding is stable, and the lead can be easily pulled or pulled to be separated by a driving cylinder when the lead needs to be separated after the welding is completed and the power is cut off; moreover, the arrangement mode of the two leads is very ingenious, the first lead vertically advances along the central hole of the upper pile section, the second lead horizontally advances outside the pipe wall of the lower pile section, the two leads are positioned inside and outside one pile section, and cannot be contacted in advance under the separation of the side wall of the pile section, so that the possibility of mistakenly contacting and short-circuiting before welding is avoided, and the safety is improved.
The upper welding assembly preferably further comprises a winch mounted on the frame, the non-free end of the first wire being connected to the winch; therefore, the winch can be used for controlling the first lead to ascend and descend in a forward and reverse rotating mode, and the magnetic head on the first lead is in magnetic attraction butt joint with and automatically separated from the lower end plate of the upper pile section.
The lower welded assembly is preferably: the mechanical arm further comprises a vertical driving cylinder, and a piston rod of the vertical driving cylinder is fixed with a cylinder body of the horizontal driving cylinder; therefore, the height of the pneumatic finger and the height of the lower magnetic head can be adjusted by utilizing the vertical driving cylinder, so that the pneumatic finger and the lower magnetic head are accurately aligned to the upper end plate of the lower pile section, and the butt joint accuracy of the lower magnetic head and the upper end plate of the lower pile section is improved.
The lower welding component further preferably comprises a transverse track and a trolley which is in sliding fit with the track, and a fixing part of the vertical driving cylinder is arranged on the trolley; the transverse track is vertical to the horizontal driving cylinder; therefore, the moving range of the mechanical arm is firstly increased, the distance between the mechanical arm and a welding point during welding is enlarged, welding damage of the mechanical arm is further avoided, and the track and the horizontal driving cylinder are vertically distributed, so that the whole lower welding assembly is compact and reasonable in layout.
The lower magnetic head preferably comprises a cylinder shell, wherein a through hole is formed in a back plate of the cylinder shell, a second lead extends into the cylinder shell through the through hole, a convex contact is fixed at the free end of the second lead, a pressure spring is arranged between a large diameter part of the convex contact and the back plate of the cylinder shell, a limiting magnetic ring is arranged at a front opening of the cylinder shell, the small diameter part of the convex contact extends out of a central hole of the limiting magnetic ring, and an annular step of the convex contact is clamped with the central hole of the limiting magnetic ring; like this, when the magnetic spacing ring adsorbs the upper end plate, under the pressure spring effect, the convex contact is ensured to support with the upper end plate and is leaned on firmly, and then ensures second wire and upper end plate firm in connection, further improves welding stability.
The invention aims to solve another technical problem of providing a method for welding a tubular pile by using the static pile machine, which can realize automatic welding and does not need manual operation.
The other technical scheme of the invention is to provide a method for welding a tubular pile by using the static pile machine, which comprises the following steps:
sinking the lower pile section into the soil body, suspending and aligning the upper pile section by using a crane, then lowering the first lead around the fixed pulley, so that the upper magnetic head of the first lead descends along the central hole of the upper pile section, and adsorbing the lower end plate by the upper magnetic head after the upper magnetic head descends to the same elevation as the lower end plate of the upper pile section;
placing annular welding fluxes on the upper end plate of the lower pile section, and then descending the upper pile section to enable the two end plates of the upper pile section and the lower pile section to be close;
starting a vertical driving cylinder of the mechanical arm to enable the lower magnetic head of the second lead to be located at the same elevation as the upper end plate of the lower pile section, driving the horizontal driving cylinder to enable the lower magnetic head to be abutted against and adsorbed by the upper end plate of the lower pile section, loosening the pneumatic finger, retracting the trolley, and enabling the mechanical arm to be far away from the welding point;
the welding circuit is conducted, so that the upper end plate and the lower end plate are electrified, the welding flux between the two end plates is further melted, and welding is realized; and in the welding process, the hoop holds the upper pile section tightly, and a static pressure machine is used for providing pressure for the welding position.
Compared with the prior art, the method for welding the tubular pile has the following advantages.
The method has the advantages that a novel tubular pile welding mode is creatively provided, namely two end plates are electrified by two leads, the two end plates which are originally close to each other are electrified and short-circuited, the generated high temperature melts the solder between the two end plates to realize welding, and in the welding process, a static pressure pile machine can be used for providing continuous, stable and strong static pressure, so that the welding quality and the welding efficiency are remarkably improved; moreover, the two groups of welding accessories are utilized to realize the full-automatic butt joint and the full-automatic separation of the two leads and the two end plates, the process of manually and annularly welding a circle in the prior art is completely replaced, the production efficiency is greatly improved, the construction period is shortened, the labor intensity is reduced, and workers are relieved from a narrow and narrow severe welding environment; moreover, the method does not additionally increase other mechanical equipment, only improves the original static pile press, reasonably utilizes the existing mechanical equipment, does not greatly increase the construction cost, reasonably integrates the welding and static pressure procedures, further improves the labor efficiency, and has huge economic value and popularization potential; moreover, the two wires are respectively positioned on the inner side and the outer side of the pipe wall of the tubular pile, so that the tubular pile is prevented from contacting short circuit in advance, the whole welding process does not need manual operation, and the tubular pile is safe and stable and avoids hidden dangers.
Drawings
Fig. 1 is a schematic structural diagram of a static pile press of the present invention.
Fig. 2 is a schematic structural view of the static pile press of the present invention after being deflected by a certain angle.
Fig. 3 is a schematic front view structure diagram of the static pile press of the present invention.
Fig. 4 is a schematic structural diagram of a lower welding assembly of the static pile press of the invention.
FIG. 5 is a schematic cross-sectional structure diagram of a lower magnetic head of the static pile press of the present invention.
The device comprises a frame 1, a frame 2, supporting legs 3, a control tower 4, a hydraulic driving part 5, a crane 6, a hoop 7, a first lead 8, a fixed pulley 9, an upper pile section 10, a lower end plate 11, an upper magnetic head 12, a second lead 13, a lower pile section 14, an upper end plate 15, a lower magnetic head 16, a horizontal driving cylinder 17, a pneumatic finger 18, a winch 19, a vertical driving cylinder 20, a transverse track 21, a trolley 22, a barrel shell 23, a convex contact 24, a pressure spring 25, a limiting magnetic ring 26 and an annular step.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the static pile press of the present invention includes a frame 1 and four sets of walking legs 2 installed below the frame 1, wherein the four sets of walking legs 2 are distributed in four directions of the frame 1.
The frame 1 is provided with a control tower 3, a hydraulic driving part 4, a balancing weight and a crane 5, an alignment hole for a pile section of the tubular pile to pass through is penetrated through the frame 1, and the hydraulic driving part 4 is provided with a hoop 6 for hooping the pile section. The figures of the application show the invention point, namely the mechanical arm, and the front and rear two groups of walking type supporting legs 2 and all the balancing weights are omitted, and the omitted parts are completely the same as those of the static pressure machine in the prior art.
The static pile press further comprises an upper welding assembly and a lower welding assembly, wherein the upper welding assembly comprises a first lead 7, a fixed pulley 8 positioned at the top of a mast of a crane 5 and a winch 18 installed on the frame 1. The first lead 7 passes around the fixed pulley 8, and the free end of the first lead 7 is provided with an upper magnetic head 11 for absorbing a lower end plate 10 of the upper pile section 9; the non-free end of the first wire 7 is connected to a winch 18. More specifically, the first wire 7 is wound around a rotating shaft of the hoist 18 and includes a conductor portion thereon, and a metal core of a non-free end of the first wire 7 is fixed to the conductor portion of the rotating shaft and the conductor portion is connected to a positive electrode or a negative electrode of a power source of a welding circuit.
The lower weld assembly includes a second wire 12, a robotic arm, a transverse rail 20, and a trolley 21 that is a sliding fit within the rail 20. The free end of the second lead 12 is provided with a lower magnetic head 15 for adsorbing an upper end plate 14 of the lower pile section 13, and the non-free end of the second lead 12 is connected with the negative pole or the positive pole of the welding circuit power supply.
The robot arm comprises a vertical drive cylinder 19, a horizontal drive cylinder 16 and a pneumatic finger 17 for gripping the lower head 15. The fixed part of the vertical driving cylinder 19 is arranged on the trolley 21, the piston rod of the vertical driving cylinder 19 is fixed with the cylinder body of the horizontal driving cylinder 16, and the piston rod of the horizontal driving cylinder 16 is connected with the fixed part of the pneumatic finger 17. The transverse rails 20 are perpendicular to the horizontal drive cylinder 16.
The lower magnetic head 15 preferably comprises a cylinder shell 22, a through hole is arranged on the rear plate of the cylinder shell 22, the second lead 12 extends into the cylinder shell 22 through the through hole, a convex contact 23 is fixed at the free end of the second lead 12, a pressure spring 24 is arranged between the large diameter part of the convex contact 23 and the rear plate of the cylinder shell 22, a limit magnetic ring 25 is arranged at the front opening of the cylinder shell 22, the small diameter part of the convex contact 23 extends out of the central hole of the limit magnetic ring 25, and the annular step 26 of the convex contact 23 is tightly clamped with the central hole of the limit magnetic ring 25.
As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the method for welding the tube pile by using the static pile machine of the invention comprises the following steps.
The lower pile section 13 is sunk into the soil body, the upper pile section 9 is suspended by the crane 5 to pass through the alignment hole of the frame 1, after the upper pile section and the lower pile section are aligned, the first lead 7 is lowered by the winch 18 around the fixed pulley 8, the upper magnetic head 11 of the first lead 7 descends along the center hole of the upper pile section 9, and when the upper magnetic head 11 descends to the same elevation as the lower end plate 10 of the upper pile section 9, the upper magnetic head 11 can automatically adsorb the lower end plate 10, so that the butt joint of the first lead 7 and the lower end plate 10 of the upper pile section 9 is completed.
At this moment, the annular solder can be placed on the upper end plate 14 of the lower pile section 13, or before each pile section is lifted, the solder is bonded on the upper end plate 14 at the top of the pile section, so that after the pile section is pressed into the soil, the solder is automatically positioned on the upper end plate 14 of the lower pile section 13, and thus, the solder is convenient to place, and a constructor does not need to drill into a narrow space below the frame 1.
Then the upper pile section 9 is lowered, so that the two end plates of the upper pile section and the lower pile section are closed.
And starting a vertical driving cylinder 19 of the mechanical arm, enabling the lower magnetic head 15 of the second lead 12 to be located at the same elevation as the upper end plate 14 of the lower pile section 13, driving the horizontal driving cylinder 16, enabling the lower magnetic head 15 to be abutted and adsorbed with the upper end plate 14 of the lower pile section 13, loosening the pneumatic finger 17, and returning the horizontal driving cylinder 16 or the returning trolley 21 to enable the mechanical arm to avoid and keep away from the welding point.
The switch of the welding circuit is switched on, so that the upper end plate 14 and the lower end plate 10 are electrified and short-circuited, and the generated high temperature melts the welding flux between the two end plates to realize welding; and in the welding process, the hoop 6 tightly holds the upper pile section 9, the contraction walking type supporting leg 2 descends the frame 1, and the self weight of the static pressure machine and the weight of the balancing weight are used for providing pressure for the welding position.
Certainly, the welding method is not limited to pipe piles, solid square piles or hollow square piles with end plates can be constructed by the method, even the welding process can be independent of a static pile press, even when hammering is carried out for pile sinking, two magnetic heads of two leads can be manually butted with the two end plates of the upper pile section and the lower pile section by workers respectively, and then electric welding is carried out, and better welding quality and better welding effect can be achieved.
Claims (6)
1. A static pile machine comprises a rack (1) and a walking type landing leg (2) arranged below the rack (1), wherein a control tower (3), a hydraulic driving part (4), a balancing weight and a crane (5) are arranged on the rack (1), an alignment hole for a pile section of a tubular pile to pass through is formed in the rack (1), and a hoop (6) for hooping the pile section is arranged on the hydraulic driving part (4); the method is characterized in that: the static pile press further comprises an upper welding assembly and a lower welding assembly, wherein the upper welding assembly comprises a first lead (7) and a fixed pulley (8) positioned at the top of a mast of a crane (5), the first lead (7) bypasses the fixed pulley (8), and the free end of the first lead (7) is provided with an upper magnetic head (11) used for absorbing a lower end plate (10) of an upper pile section (9); the lower welding assembly comprises a second lead (12) and a mechanical arm, a lower magnetic head (15) used for adsorbing an upper end plate (14) of the lower pile section (13) is arranged at the free end of the second lead (12), the mechanical arm comprises a horizontal driving cylinder (16) and a pneumatic finger (17) used for clamping the lower magnetic head (15), and a piston rod of the horizontal driving cylinder (16) is connected with a fixing part of the pneumatic finger (17).
2. The static pile machine of claim 1, wherein: the upper welding assembly further comprises a winch (18) mounted on the frame (1), and the non-free end of the first conductor (7) is connected with the winch (18).
3. The static pile machine of claim 1, wherein: the mechanical arm further comprises a vertical driving cylinder (19), and a piston rod of the vertical driving cylinder (19) is fixed with a cylinder body of the horizontal driving cylinder (16).
4. The static pile machine of claim 3, wherein: the lower welding assembly also comprises a transverse track (20) and a trolley (21) which is in sliding fit with the track (20), and the fixed part of the vertical driving cylinder (19) is arranged on the trolley (21); the transverse rail (20) is perpendicular to the horizontal drive cylinder (16).
5. The static pile machine of claim 1, wherein: the lower magnetic head (15) comprises a cylinder shell (22), a through hole is formed in the rear plate of the cylinder shell (22), a second lead (12) extends into the cylinder shell (22) through the through hole, a convex contact (23) is fixed at the free end of the second lead (12), a pressure spring (24) is arranged between the large-diameter part of the convex contact (23) and the rear plate of the cylinder shell (22), a limiting magnetic ring (25) is arranged at the front opening of the cylinder shell (22), the small-diameter part of the convex contact (23) extends out of the central hole of the limiting magnetic ring (25), and an annular step (26) of the convex contact (23) is clamped with the central hole of the limiting magnetic ring (25).
6. The method for welding the tubular pile by using the static pile machine as claimed in any one of claims 1-5, is characterized in that: the method comprises the following steps:
sinking a lower pile section (13) into a soil body, suspending an upper pile section (9) by using a crane (5) to align, then lowering a first lead (7) around a fixed pulley (8) to enable an upper magnetic head (11) of the first lead (7) to descend along a central hole of the upper pile section (9), and enabling the upper magnetic head (11) to adsorb a lower end plate (10) after the upper magnetic head (11) descends to the same elevation as the lower end plate (10) of the upper pile section (9);
placing annular welding materials on an upper end plate (14) of a lower pile section (13), and then descending an upper pile section (9) to enable two end plates of the upper pile section and the lower pile section to be close;
starting a vertical driving cylinder (19) of a mechanical arm, enabling a lower magnetic head (15) of a second lead (12) to be located at the same elevation of an upper end plate (14) of a lower pile section (13), driving a horizontal driving cylinder (16) to enable the lower magnetic head (15) and the upper end plate (14) of the lower pile section (13) to be abutted and adsorbed, then loosening a pneumatic finger (17), and retracting a trolley (21) to enable the mechanical arm to be far away from a welding point;
the welding circuit is conducted, so that the upper end plate (14) and the lower end plate (10) are electrified, and further, the welding flux between the two end plates is melted, and welding is realized; and in the welding process, the hoop (6) holds the upper pile section (9) tightly, and a static pressure machine is used for providing pressure for the welding position.
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| CN201910402065.1A CN110130345B (en) | 2019-05-15 | 2019-05-15 | Static pile machine and tubular pile welding method |
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| CN201910402065.1A CN110130345B (en) | 2019-05-15 | 2019-05-15 | Static pile machine and tubular pile welding method |
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| CN110130345B true CN110130345B (en) | 2020-10-02 |
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| CN111188336B (en) * | 2020-01-14 | 2021-06-11 | 中国十七冶集团有限公司 | Method for piling and feeding PHC piles in backfilled and dug foundation area |
| CN111926813B (en) * | 2020-08-19 | 2021-12-28 | 管云民 | Static pile machine with column pile positioning system and column pile construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH108466A (en) * | 1996-06-20 | 1998-01-13 | Isamu Kuramoto | Steel pipe holding device for driving steel pipe pile |
| US6548790B1 (en) * | 2000-02-24 | 2003-04-15 | Trucco Horacio Andres | Apparatus for manufacturing solid solder deposit PCBs |
| CN108797579B (en) * | 2018-05-30 | 2020-06-02 | 浙江大学宁波理工学院 | Connecting device and connecting method for precast tubular piles |
| CN108480873A (en) * | 2018-06-01 | 2018-09-04 | 南通振华重型装备制造有限公司 | A kind of folding method of jack up wind-powered electricity generation mounting platform spud leg epimere and spud leg hypomere |
| CN109137915B (en) * | 2018-09-14 | 2021-03-30 | 安徽省路港工程有限责任公司 | Pile plate type roadbed pipe pile dry-digging implantation module structure and construction method thereof |
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Address after: 518000 Room 501, building a, innovation building, 198 Daxin Road, majialong community, Nantou street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Zhongdi Junhao Hi Tech Co.,Ltd. Address before: No.2401, 24 / F, West building, Huizhi Plaza, No.399, Qunli Fourth Avenue, Daoli District, Harbin City, Heilongjiang Province Patentee before: ZHONGDI JUNHAO CONSTRUCTION ENGINEERING Co.,Ltd. |
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Address after: 518000 b1-701-21, building B, Kexing Science Park, 15 Keyuan Road, Science Park community, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Zhongdi Junhao Hi Tech Co.,Ltd. Address before: 518000 Room 501, building a, innovation building, 198 Daxin Road, majialong community, Nantou street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: Zhongdi Junhao Hi Tech Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |