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A pile sleeve and prefabricated technology, applied in sheet pile wall, construction, infrastructure engineering and other directions, can solve the problems of long pile pulling period, high price and high cost, and achieve fast pile pulling speed, convenient production, and pile pulling technology. simple effect
Inactive Publication Date: 2018-09-21
MCC5 GROUP CORP SHANGHAI
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Abstract
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Problems solved by technology
Although the machine is capable of clearing and pulling piles, it is expensive, and the pile pulling period is long and the cost is high.
[0004] Therefore, there are above-mentioned inconveniences and problems in the known pile extraction mode
Method used
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Embodiment 1
[0042] The pile sleeve of the present invention is used for pile extraction operations of concrete prefabricated square piles, and comprises steel pipes, four tongues, water pipes and air pipes.
[0043] see now Figure 1-3 , figure 1 It is a structural schematic diagram of the pile pulling sleeve of the embodiment of the present invention, figure 2 for figure 1 The sectional view of A-A in, image 3 for figure 1 Middle B direction view. As shown in the figure, the steel pipe body is a welded steel pipe with a lifting lug fixedly welded at one end. The specification of the welded steel pipe is 800*26mm, and the length of the welded steel pipe is 25m. root steel pipe, four steel pipes for 180 o Symmetrically arranged, the corresponding two are the water pipe and the air pipe, the length of the water pipe and the air pipe is the same as the length of the steel pipe body, one end of the water pipe and the air pipe is respectively installed with a high-pressure nozzle, and ...
Embodiment 2
[0046] The use method of the pile pulling sleeve is used for the pile pulling operation of the concrete prefabricated square pile, including the following steps:
[0047] a. Preparatory work before pulling piles
[0048] (1) Organize relevant foremen, technicians and construction teams to be familiar with the construction drawings, and organize the self-examination, joint examination and technical disclosure of drawings before the start of construction.
[0049] (2) Do a good job of material planning, machinery and equipment planning, labor planning, construction progress planning, and prefabricated pile pulling sleeves before the start of construction.
[0050] (3) Site leveling: Use crawler cranes to walk the road for pulling out piles for compaction, and lay steel plates or roadbed boxes to ensure the safety of crawler cranes.
[0051] b. Determine the position of the pile head: According to the design position of the pile position, excavate the trench and expose the pile he...
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Abstract
The invention relates to a pile extracting sleeve which is used for concrete prefabricated square pile pulling operation. The pile extracting sleeve comprises a steel pipe, four tongues, a water pipeand an air pipe, and is characterized in that a steel pipe body is a welding steel pipe with one end fixedly provided with lifting lugs in a welded manner, the four tongues are arranged at the other end of the steel pipe body, four square holes are formed in the steel pipe body in a quartering circumferential manner, two seat plates are fixedly welded to the outer walls of the square holes in parallel, a through hole is formed in the center of each seat plate, and a pin shaft is contained in each through hole; and when the steel pipe is upwards pulled, the four tongues are opened toward the center in the pipe at the same time, one side of each tongue tip abuts against a pile pipe, and the other sides of the tongue tips are lined at the positions, where the square holes are formed, on the wall of the steel pipe body. The pile extracting sleeve and a using method of the pile extracting sleeve have the advantages that the pile extracting sleeve device is simple in structure, convenient tomanufacture, high in pile pulling speed, safe and reliable in construction quality, simple in pile pulling process and convenient to construct and reduces the engineering cost.
Description
technical field [0001] The invention relates to a pile pulling method, in particular to a pile pulling sleeve and its usage method. Background technique [0002] In large-scale urban reconstruction, it is sometimes necessary to demolish the original bridges, municipal facilities, and construction (structure) crops, including the pile foundations of the original bridges, municipal facilities, and construction (structure) crops, which involves square piles, prefabricated PHC Pipe piles, etc. Before the construction of the civil engineering pile foundation project for the directional resettlement of affordable housing in a garment factory in the south, the original square piles at the bottom of the original building foundations of the proposed 6 and 7# buildings had to be pulled out before new engineering piles could be constructed. The project needs to pull out the original square piles, the size is 350mm*350mm, the number is 114, and the length reaches 18 meters. It is divid...
Claims
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Application Information
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