WO2022116916A1 - Procédé de construction permettant de retirer un pieu de tuyau en béton sur l'eau et outil d'enlèvement de pieu - Google Patents

Procédé de construction permettant de retirer un pieu de tuyau en béton sur l'eau et outil d'enlèvement de pieu Download PDF

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Publication number
WO2022116916A1
WO2022116916A1 PCT/CN2021/133600 CN2021133600W WO2022116916A1 WO 2022116916 A1 WO2022116916 A1 WO 2022116916A1 CN 2021133600 W CN2021133600 W CN 2021133600W WO 2022116916 A1 WO2022116916 A1 WO 2022116916A1
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WIPO (PCT)
Prior art keywords
pile
inner casing
pipe pile
phc
phc pipe
Prior art date
Application number
PCT/CN2021/133600
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English (en)
Chinese (zh)
Inventor
范御华
朱珍慧
张佳鸣
顾赛华
周伟宽
韩照晏
Original Assignee
中交第三航务工程局有限公司
中交三航局第二工程有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202022860055.3U external-priority patent/CN214033712U/zh
Priority claimed from CN202022857907.3U external-priority patent/CN214738055U/zh
Priority claimed from CN202011388866.6A external-priority patent/CN112900435A/zh
Application filed by 中交第三航务工程局有限公司, 中交三航局第二工程有限公司 filed Critical 中交第三航务工程局有限公司
Publication of WO2022116916A1 publication Critical patent/WO2022116916A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
    • E02D13/08—Removing obstacles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
    • E02D9/02—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof by withdrawing
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
    • E02D9/04—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof by cutting-off under water

Definitions

  • the invention relates to the field of pulling out piles on water, in particular to a construction method for pulling out concrete pipe piles on water and a pile pulling tool.
  • the demolition of the wharf includes the removal of the revetment, the removal of a public platform at the rear of the wharf, and the removal of two independent ship piers.
  • PHC (prestressed high-strength concrete) pipe piles need to be removed when the revetment and ship piers are removed.
  • the so-called PHC pipe pile that is, a prestressed high-strength concrete pipe pile, is a hollow cylindrical concrete prefabricated member made of a pre-tensioned prestressed centrifugal forming process.
  • the invention provides a construction method for pulling out concrete pipe piles on water and a pile pulling tool.
  • the inner casing and the PHC pipe pile are lifted together by means of the pile pulling tool and the friction between the inner casing and the PHC pipe pile.
  • the PHC pipe pile pulls out the PHC pipe pile, which has the advantage of high pile pulling efficiency.
  • a construction method for pulling out concrete pipe piles on water comprising the following steps:
  • Step 1 the pile pulling tool is hoisted to the position of a PHC pipe pile that needs to pull out the pile by the piling ship, so that the position of the pile pulling tool is consistent with the position of the described one PHC pipe pile;
  • Step 2 the pile pulling tool is piled to the bottom elevation position of the described PHC pipe pile, and the pile pulling tool relies on the friction force between the inner casing and the PHC pipe pile to lift the inner casing and the PHC pipe pile together;
  • Step 3 Use the hook of the piling ship to hoist the pile pulling tool and the PHC pipe pile to the shore;
  • Step 4 take out the PHC pipe pile
  • Step 5 Use a vibrating hammer to pull out the outer casing, and then assemble it with the inner casing again after hanging on the shore to pull out the next pile.
  • the invention uses a pile pulling tool, relies on the friction between the inner casing and the PHC pipe pile to hoist the inner casing and the PHC pipe pile together, and uses the hook of the piling ship to hoist the pile pulling tool together with a single PHC pipe pile. Hanging on the shore, the pile pulling process is simpler and the pile pulling efficiency is high.
  • step one is specifically:
  • Step 1.1 measure the PHC pipe pile to obtain the measurement parameters
  • Step 1.2 Lift the pile pulling tool to the position of the PHC pipe pile where the pile needs to be pulled out by the piling ship;
  • Step 1.3 Adjust the position of the pile driver according to the measurement parameters, so that the position of the pile pulling tool is consistent with the position of the PHC pipe pile.
  • the position of the pile pulling tool is adjusted to the position consistent with the PHC pipe pile before the pile pulling tool drives the pile, so as to facilitate the pile pulling tool to drive the pile and avoid damage to the underlying PHC pipe pile when the pile pulling tool is driving the pile. More conducive to pulling piles.
  • the measurement parameters in step 1.1 include: the slope of the water-borne concrete pipe pile and the torsion angle of the water-borne concrete pipe pile.
  • the pile pulling tool relies on the friction force between the inner casing and the PHC pipe pile to hoist the inner casing and the PHC pipe pile together, including:
  • the PHC pipe pile is located inside the pile pulling tool
  • the inner casing and the PHC pipe pile are lifted together by the friction between the inner casing and the PHC pipe pile.
  • the PHC pipe pile is located inside the pile pulling tool, including:
  • the pile pulling tool includes an inner casing and an outer casing
  • the inner casing and the outer casing and the inner and outer casings are assembled after the installation is completed, and then they are lifted to the top of the PHC pipe pile;
  • the inner casing and the outer casing are driven together with an impact hammer to the bottom elevation of the PHC pipe pile, at this time, the PHC pipe pile is inside the inner casing.
  • the pile pulling tool relies on the friction force between the inner casing and the PHC pipe pile to hoist the inner casing and the PHC pipe pile together, including:
  • the bottom surface of the outer casing is provided with a circular ring, and the circular ring is used to prevent the soil from entering the inner casing and the outer casing when the pile is driven, thereby generating friction;
  • the PHC pipe pile is located inside the inner casing
  • the inner casing and the PHC pipe pile are lifted together by the friction between the inner casing and the PHC pipe pile.
  • the friction between the inner casing and the PHC pipe pile is greater than the weight of the PHC pipe pile, the weight of the inner casing, and the PHC pipe pile.
  • the weight of the soil between the inner casing and the inner casing; the inner casing and the PHC pipe pile are lifted together, and the outer casing does not need to be moved at this time.
  • step 3 is specifically:
  • step 5 is further included after step 4: repeating steps 1 to 4 to pull out the next PHC pipe pile.
  • an impact hammer or a vibrating hammer is used to drive the pile pulling tool to the bottom elevation position of the PHC pipe pile.
  • a pile pulling tool includes an outer casing and an inner casing, the bottom end of the outer casing is provided with a circular ring, the outer peripheral wall of the circular ring is fixed with the inner peripheral wall of the outer casing, and the inner casing is placed on the outer casing.
  • the bottom surface of the inner sleeve is in contact with the end surface of the circular ring; the top end of the inner sleeve is provided with a lifting lug, and the lifting lug is connected with the hook of the piling ship.
  • the inner sleeve when the inner sleeve is sleeved into the outer sleeve, there is a gap between the inner wall of the outer sleeve and the outer wall of the inner sleeve; the inner wall of the outer sleeve also surrounds the circumferential direction
  • a plurality of blocking members are evenly arranged, each of the blocking members is located at the gap, and the blocking members ensure that at any position in the circumferential direction, the value of the gap is equal.
  • the blocking member is an iron piece, and the width of the iron piece is slightly smaller than the gap value; the length of the iron piece is slightly larger than the gap value.
  • the blocking member is arranged in the same plane 5 ⁇ 3 cm from the top of the outer sleeve. Since the inner and outer casings are both long, in actual use, the lower end of the blocking member is also installed; the inner upper and lower ends of the outer casing will be arranged, 6 at each end, and one at every 60°.
  • the bottom inner peripheral wall of the outer casing is in contact with the bottom outer peripheral wall of the inner casing to prevent debris from entering between the inner casing and the outer casing during pile driving.
  • a plurality of reinforcing ribs are further provided between the annular ring and the outer sleeve, and the reinforcing ribs connect the annular ring and the outer sleeve at the same time, so as to realize the connection between the annular ring and the outer sleeve. More reliable connection of the outer casing.
  • the inner diameter of the bottom end of the outer sleeve is gradually reduced, and the minimum inner diameter of the outer sleeve is consistent with the outer diameter of the outer sleeve, so as to realize that the bottom inner peripheral wall of the outer sleeve and the inner The bottom peripheral wall of the sleeve fits.
  • the outer sleeve is formed by welding a plurality of first steel pipes along the length direction, and the joints of adjacent first steel pipes are fully welded and a stiffening plate is fixed outside the welding seam.
  • the inner sleeve is formed by welding a plurality of second steel pipes along the length direction, and the joints, inner walls and outer walls of adjacent second steel pipes are fully welded.
  • the present invention uses a pile pulling tool, relies on the friction force between the inner casing and the PHC pipe pile to hoist the inner casing and the PHC pipe pile together, and lifts the pile pulling tool with the single PHC pipe pile by means of the hook of the piling ship. Hanging on the shore together, the pile pulling process is simpler and the pile pulling efficiency is high.
  • the present invention adjusts the position of the pile-pulling tool to the same position as the PHC pipe pile before the pile-pulling tool drives the pile, which is convenient for the pile-pulling tool to drive the pile and avoids damage to the root PHC pipe when the pile-pulling tool drives the pile.
  • the pile is more conducive to pulling the pile.
  • the present invention uses the pile pulling tool to hoist the inner casing and the PHC pipe pile together by relying on the friction force between the inner casing and the PHC pipe pile, utilizes the pile pulling tool to separate the PHC pipe pile from the soil under the water, and uses pile driving The boat lifts the pile pulling tool together with the PHC pipe pile to realize the rapid pile pulling of the PHC pipe pile.
  • the pile pulling tool of the present invention is to first install the outer casing and the inner casing together on the shore, wherein the iron ring welded at the bottom of the outer casing is used to withstand the inner casing, and no soil can enter during the pile driving process of the inner and outer casings. , to ensure that there is no friction between the inner and outer casings.
  • Fig. 1 is a kind of flow chart of the construction method of pulling out the concrete pipe pile on water
  • Fig. 2 is the structural representation of pile pulling tool
  • Fig. 3 is the A-A sectional view of Fig. 2;
  • Fig. 4 is the B-B sectional view of Fig. 2;
  • Fig. 5 is the structural representation of outer casing
  • FIG. 6 is a schematic view of the structure of the inner sleeve.
  • Figure 7 is a cross-sectional view of the inner sleeve.
  • PHC pipe piles are prestressed high-strength concrete pipe piles. It adopts the pre-tensioned prestressed centrifugal molding process, and after 10 atmospheric pressure (about 1.0Mpa) and steam curing at about 180 °C, a hollow cylindrical concrete prefabricated component is made.
  • the standard section length is 10m and the diameter ranges from 300mm ⁇ 800mm, concrete strength grade ⁇ C80.
  • the domestic pile pulling methods mainly focus on static pulling method, high pressure rotary jet mud pile pulling method, vibrating immersed tube high pressure water cutting pile pulling method, azimuth CD machine pile pulling, FECE azimuth pile pulling method, etc.
  • the static pulling method directly pulls the pipe pile out of the ground.
  • This method has high requirements on the strength of the pile body and is not suitable for the removal of prefabricated pipe piles.
  • the high-pressure swirling mud pile pulling method uses high-pressure swirling mud around the pile to destroy the soil around the pile.
  • the disadvantage is that it is easy to cause broken piles, is greatly affected by the compactness of the stratum, and the stratum disturbance is large, so it is not suitable for the removal of prefabricated piles.
  • the vibrating immersed tube high pressure water cutting pile pulling method uses vibration to liquefy the soil around the pile and penetrate into the steel pipe, and cooperate with high pressure water to destroy the soil between the pile body and the steel pipe, greatly reducing the pile side friction.
  • the high-pressure water cutting pile pulling method of vibrating immersed tube is mostly suitable for pulling piles on water. When this method is used for pulling piles on land, the construction speed is slow and the stratum disturbance is large.
  • the azimuth CD machine pile pulling is one of the most advanced methods for removing underground obstacles. It has the advantages of high verticality, adaptability to various complex geology, and no noise.
  • the disadvantage is that the hydraulically driven steel casing has a slow rotation and cutting speed, the mechanical equipment needs to be counterweight to press down the steel casing with the help of a counter force, and a crane must be used for walking, so accurate positioning is difficult.
  • the FECE full-rotation pile-pulling method adopts the method of double-layer casing rotary drilling to cut the soil around the pile to reduce the frictional resistance of the pile side.
  • FECE zigzag pile pulling has the advantages of wide application range and good construction effect, especially for inclined piles and buildings that are sensitive to settlement near the site, but this method requires a special FECE zigzag pile pulling machine, and the construction cost is high.
  • an embodiment of the present invention provides a construction method for pulling out a concrete pipe pile on water, comprising the following steps:
  • Step 1 The pile-pulling tool is hoisted to the position of a PHC pipe pile that needs to be pulled out by the piling ship, so that the position of the pile-pulling tool is consistent with the position of a PHC pipe pile;
  • Step 2 the pile pulling tool is driven to the bottom elevation position of the PHC pipe pile, and the pile pulling tool relies on the friction force between the inner casing and the PHC pipe pile to hoist the inner casing and the PHC pipe pile together;
  • Step 3 Use the hook of the piling ship to hoist the pile pulling tool and the PHC pipe pile to the shore;
  • Step 4 take out the PHC pipe pile
  • Step 5 Use a vibrating hammer to pull out the outer casing, and then assemble the inner casing and pull out the next pile after hanging on the shore.
  • the invention uses a pile pulling tool, relies on the friction between the inner casing and the PHC pipe pile to hoist the inner casing and the PHC pipe pile together, and uses the hook of the piling ship to hoist the pile pulling tool together with a single PHC pipe pile. Hanging on the shore, the pile pulling process is simpler and the pile pulling efficiency is high.
  • Step 1 of the embodiment of the present invention is specifically:
  • Step 1.1 Measure the PHC pipe pile to obtain the measurement parameters.
  • the measurement parameters include: the inclination of the water-borne concrete pipe pile and the torsion angle of the water-borne concrete pipe pile.
  • the parameters of the water PHC pipe pile are measured, calculated and positioned.
  • Step 1.2 Lift the pile pulling tool to the position of the PHC pipe pile where the pile needs to be pulled out by the piling ship.
  • Step 1.3 Adjust the position of the pile driver according to the measurement parameters, so that the position of the pile pulling tool is consistent with the position of the PHC pipe pile.
  • the position of the pile pulling tool is adjusted to the position consistent with the PHC pipe pile before the pile pulling tool drives the pile, so as to facilitate the pile pulling tool to drive the pile and avoid damage to the underlying PHC pipe pile when the pile pulling tool is driving the pile. More conducive to pulling piles.
  • the pile pulling tool relies on the friction between the inner casing and the PHC pipe pile to hoist the inner casing and the PHC pipe pile together, including: the PHC pipe pile is located inside the pile pulling tool; The friction between the pipe and the PHC piles lifts the inner casing and the PHC piles together.
  • the PHC pipe pile of the present invention is located inside the pile pulling tool, and includes: the pile pulling tool includes an inner casing and an outer casing; the inner casing and the outer casing are assembled after the installation is completed, and then hanged above the PHC pipe pile; the inner casing; After measuring and positioning with the outer casing, use the impact hammer to sink the inner casing and the outer casing together to the bottom elevation of the PHC pipe pile, at this time the PHC pipe pile is inside the inner casing.
  • the pile pulling tool of the present invention lifts the inner casing and the PHC pipe pile together by means of the friction force between the inner casing and the PHC pipe pile, including: a circular ring is arranged on the bottom surface of the outer casing, and the circular ring is used to allow the inner casing and the PHC pipe pile to be hoisted together.
  • the outer casing does not enter the soil when the pile is driven, so as to generate friction; the PHC pipe pile is located inside the inner casing.
  • the inner casing and the PHC pipe pile are lifted together by the friction between the inner casing and the PHC pipe pile.
  • the invention relies on the friction force between the inner casing and the PHC pipe pile to hoist the inner casing and the PHC pipe pile together, including: when the pile pulling tool sinks the pile to the bottom elevation position of the PHC pipe pile, the inner casing and the outer casing Slightly exceed the bottom of the PHC pipe pile; when the inner and outer casings are piled to the bottom of the PHC pipe pile, or slightly exceed the bottom of the PHC pipe pile, rely on the friction between the inner casing and the PHC pipe pile (mainly refers to the inner casing.
  • the friction force between the contact surface with the soil is greater than the weight of the PHC pipe pile (if the interior of the PHC pipe pile contains soil, the weight of the PHC pipe pile itself, and the The weight of the soil), the weight of the inner casing, and the weight of the soil between the PHC pipe pile and the inner casing; lift the inner casing and the PHC pipe pile together, and the outer casing does not need to be moved.
  • the lengths of the piles vary. Generally speaking, it is about 22m from the sea level, so the two 12m steel casings used are welded;
  • the friction between the inner casing and the PHC pipe pile is greater than the weight of the PHC pipe pile, the weight of the inner casing, and the weight of the soil between the PHC pipe pile and the inner casing are discussed in detail as follows:
  • the value is 2m per layer
  • the self-weight of the soil plug inside the PHC pipe pile (the depth of the soil plug is considered to be 10m):
  • Inner casing (steel pipe pile):
  • Step 3 in the embodiment of the present invention is specifically:
  • step 5 is further included: repeating steps 1 to 4 to pull out the next PHC pipe pile.
  • the inner casing is inside the outer casing, and a 16Ton hydraulic impact hammer is used for the pile sinking of the inner casing and the outer casing. , Stop hammering, then hang the lifting ring of the inner casing with the hook of the piling ship, and directly pull out the inner casing and the PHC pipe pile together. After the inner casing is hoisted ashore, the soil in the inner casing is poured out, and the PHC pipe pile is poured out together with the soil. Clamp the outer casing with a pile clamp, and start the vibrating hammer to vibrate to pull out the outer casing.
  • an embodiment of the present invention provides a pile pulling tool, which includes an outer casing 1 and an inner casing 2 , and the bottom end of the outer casing 1 is provided with a circular Ring 3, the outer peripheral wall of the ring 3 is fixed with the inner peripheral wall of the outer casing 1, the inner casing 2 is placed in the inner cavity of the outer casing 1, and the top of the inner casing 2 and the outer casing 1 are clamped by the same pile clamp, The bottom surface of the inner casing 2 is in contact with the end face of the ring 3; the top end of the inner casing 2 is provided with a lifting lug 5, which is connected with the hook of the piling ship.
  • the invention adopts the method of double casing drilling to cut off the soil around the PHC pipe pile, and the soil body is pulled up together with the PHC pipe pile.
  • the outer casing 1 of the embodiment of the present invention is made of a steel pipe with an outer diameter of 1000 mm and a wall thickness of 24 mm, and is welded and connected by two steel pipes with a length of 12 m. block stiffener.
  • the bottom of the outer casing 1 is cut into a circular ring with a 4cm thick iron plate and welded to the outer casing 1. After the iron ring is welded, the inner casing 2 can directly act on the iron ring.
  • the ring generally does not change during the construction process. If the soil is too hard, the ring will be deformed to an ellipse. If the deformation is too large, the ring will hit the pile, and the ring needs to be corrected or reprocessed. Specifically, weld a ring at the bottom first. ring, and then weld a reinforcing iron sheet on the outside of the ring, and finally seal the surrounding area.
  • the inner casing 2 of the embodiment of the present invention is made of a steel pipe with an outer diameter of 908 mm and a wall thickness of 24 mm, and is welded and connected by two steel pipes with a length of 12 m. Both inside and outside need to be welded.
  • the inner side of the inner sleeve 2 is welded with two lifting ears 5, and the size is 20cm*20cm*4cm.
  • the inner wall of the outer sleeve 1 is also provided with a plurality of blocking members 4 evenly around the circumference, and each blocking member is 4 are all located at the gap, and the blocking member 4 ensures that the gap value is equal at any position in the circumferential direction.
  • the blocking member 4 is arranged in the same plane 5 ⁇ 3 cm from the top of the outer sleeve 1 .
  • the blocking member 4 is an iron piece, and the width of the iron piece is slightly smaller than the gap value; the length of the iron piece is slightly larger than the gap value.
  • 6 iron pieces are evenly arranged, and the size of the iron pieces is 5cm*5cm*2cm, which can ensure that the inner and outer casings 1 can be evenly distributed after assembling.
  • the purpose of providing the blocking member 4 in the present invention is to ensure that the inner sleeve 2 and the outer sleeve 1 can be evenly distributed after being assembled.
  • the bottom inner peripheral wall of the outer casing 1 is fitted with the bottom outer peripheral wall of the inner casing 2 to prevent debris from entering between the inner casing 2 and the outer casing 1 during pile driving.
  • the inner diameter of the inner casing 2 is larger than the outer diameter of the water-borne concrete pipe pile; the water-borne concrete pipe pile is located in the inner cavity of the inner casing 2, and the inner casing 2 pulls out the water-borne concrete pipe pile together with the surrounding soil.
  • a plurality of reinforcement ribs are further provided between the ring 3 and the outer sleeve 1 , and the reinforcement ribs connect the ring 3 and the outer sleeve 1 at the same time, so as to realize a more reliable connection between the ring 3 and the outer sleeve 1 .
  • the inner diameter of the bottom end of the outer casing 1 is gradually reduced, and the minimum inner diameter of the outer casing 1 is consistent with the outer diameter of the outer casing 1, so as to realize the bottom outer peripheral wall of the inner casing 2 and the bottom outer circumference of the inner casing 2 Wall fit.
  • the outer casing 1 is formed by welding a plurality of first steel pipes along the length direction, and the joints of the adjacent first steel pipes are fully welded and a stiffening plate is fixed outside the welding seam.
  • the inner casing 2 is formed by welding a plurality of second steel pipes along the length direction, and the joints, inner walls and outer walls of adjacent second steel pipes are fully welded.
  • the construction process of the pile pulling tool is as follows:
  • the surveyor will measure the slope and torsion angle of the PHC pipe piles of the wharf in advance.
  • the piling boat cooperates with a 180T crawler crane to install the inner and outer casings 1 together, and then the piling boat lifts the inner and outer casings 1 together to the PHC pipe pile that needs to be pulled out.
  • the surveyor's instructions adjust the position and angle of the boat to match.
  • the stakes are perfectly matched.
  • Pile pulling effect Pile pulling tool, its construction progress is: 1 / 4 hours. Specifically, the casing is positioned for 20 minutes, the inner and outer casings 1 sink for 1 hour, the pipe piles are removed for 20 minutes, the inner casing 2 and the PHC pipe piles are cleaned for 2 hours, and the outer casing 1 is pulled out for 20 minutes. The method improves the success rate and efficacy of pile pulling.
  • the inner wall of the inner casing 2 is also equipped with a pile pulling assembly, and each group of the pile pulling assembly includes a water pipe 6, an air pipe 7 and a guard, and the guard is fixed on the inner wall of the casing 1, A cavity is formed between the guard and the inner wall of the sleeve 1, the water pipe 6 and the air pipe 7 are fixed in the cavity, and the water pipe 6 and the air pipe 7 penetrate the cavity along the axial direction of the sleeve 1; the water pipe 6 and the air pipe 7 are fixed in the cavity.
  • Each group of pile pulling assemblies also includes a nozzle, which is fixed at the bottom of the water pipe 6 .
  • the ejection port of the nozzle is arranged on its peripheral wall, and the water flow flowing through the water pipe 6 is ejected from the ejection port after the nozzle is turned 90°.
  • the nozzle is conical, the large end of the nozzle is connected with the water pipe 6, and the small end of the nozzle is provided with a spray outlet.
  • each water pipe 6 and air pipe 7 at the top are connected to a water pump and an air compressor with a rubber hose.
  • the guard is changed from the original angle joint plate 2 to The circular pipe 8, the bottom of the gas pipe 7 is stretched into the circular pipe 8, the water pipe 6 and the gas pipe 7 are welded on both sides of the circular pipe 8 respectively, and the inner wall of the inner casing 2 is fully welded, and the reinforced plate is used for welding reinforcement at the connection. , the top of the round tube 8 is fully welded and sealed with steel plates. Extend the life of pile pulling components.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

Un procédé de construction permettant de retirer un pieu de tuyau en béton sur l'eau comprend un outil d'enlèvement de pieu et les étapes suivantes : 1 : une barge d'enfoncement de pieu soulève l'outil d'enlèvement de pieu jusqu'à la position d'un pieu de tuyau PHC de telle sorte que la position de l'outil d'enlèvement de pieu correspond à celle du pieu de tuyau PHC ; 2 : l'outil d'enlèvement de pieu est enfoncé jusqu'à l'élévation inférieure du pieu de tuyau PHC, et soulève un manchon interne (2) et le pieu de tuyau PHC ensemble au moyen d'un frottement entre le manchon interne (2) et le pieu de tuyau PHC ; 3 : l'outil d'enlèvement de pieu et le pieu de tuyau PHC sont amenés sur le rivage au moyen d'un crochet de la barge d'enfoncement de pieu ; 4 : le pieu de tuyau PHC est sorti ; 5: un manchon externe (1) est retiré et amené sur le rivage au moyen d'un marteau à vibrations, et le manchon interne et le manchon externe (2, 1) sont assemblés pour extraire le pieu suivant. L'outil d'enlèvement de pieu soulève le manchon interne (2) et un unique pieu de tuyau PHC au moyen d'un frottement entre le manchon interne (2) et le pieu de tuyau PHC, et l'outil d'enlèvement de pieu et l'unique pieu de tuyau PHC sont amenés sur le rivage à l'aide du crochet de la barge d'enfoncement de pieu. Le processus d'enlèvement de pieu est plus simple et l'efficacité de l'enlèvement de pieu est élevée.
PCT/CN2021/133600 2020-12-01 2021-11-26 Procédé de construction permettant de retirer un pieu de tuyau en béton sur l'eau et outil d'enlèvement de pieu WO2022116916A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN202022857907.3 2020-12-01
CN202022860055.3U CN214033712U (zh) 2020-12-01 2020-12-01 一种用于水冲拔桩的拔桩工具
CN202022860055.3 2020-12-01
CN202022857907.3U CN214738055U (zh) 2020-12-01 2020-12-01 一种拔出水上混凝土管桩的施工工具
CN202011388866.6 2020-12-01
CN202011388866.6A CN112900435A (zh) 2020-12-01 2020-12-01 一种拔出水上混凝土管桩的施工方法

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WO2022116916A1 true WO2022116916A1 (fr) 2022-06-09

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002188145A (ja) * 2000-12-22 2002-07-05 Sanwa Kizai Co Ltd 地中コンクリート杭の引き抜きケーシング
CN104196026A (zh) * 2014-05-27 2014-12-10 天津二十冶建设有限公司 水中桥梁临时工程用钢管桩拔除方法
CN106869126A (zh) * 2017-03-20 2017-06-20 大成科创基础建设股份有限公司 城市废旧基础的快速绿色施工清除装置
CN110747854A (zh) * 2019-10-30 2020-02-04 中南大学 一种用于有限空间拔除超长桩的双套管拔桩装置
CN110747855A (zh) * 2019-10-30 2020-02-04 中南大学 一种采用双套管拔除超长桩的方法
CN112900435A (zh) * 2020-12-01 2021-06-04 中交第三航务工程局有限公司 一种拔出水上混凝土管桩的施工方法
CN214033712U (zh) * 2020-12-01 2021-08-24 中交第三航务工程局有限公司 一种用于水冲拔桩的拔桩工具
CN214738055U (zh) * 2020-12-01 2021-11-16 中交第三航务工程局有限公司 一种拔出水上混凝土管桩的施工工具

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002188145A (ja) * 2000-12-22 2002-07-05 Sanwa Kizai Co Ltd 地中コンクリート杭の引き抜きケーシング
CN104196026A (zh) * 2014-05-27 2014-12-10 天津二十冶建设有限公司 水中桥梁临时工程用钢管桩拔除方法
CN106869126A (zh) * 2017-03-20 2017-06-20 大成科创基础建设股份有限公司 城市废旧基础的快速绿色施工清除装置
CN110747854A (zh) * 2019-10-30 2020-02-04 中南大学 一种用于有限空间拔除超长桩的双套管拔桩装置
CN110747855A (zh) * 2019-10-30 2020-02-04 中南大学 一种采用双套管拔除超长桩的方法
CN112900435A (zh) * 2020-12-01 2021-06-04 中交第三航务工程局有限公司 一种拔出水上混凝土管桩的施工方法
CN214033712U (zh) * 2020-12-01 2021-08-24 中交第三航务工程局有限公司 一种用于水冲拔桩的拔桩工具
CN214738055U (zh) * 2020-12-01 2021-11-16 中交第三航务工程局有限公司 一种拔出水上混凝土管桩的施工工具

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