Pile stabilizing platform mounting process

Abstract

The invention relates to a pile stabilizing platform mounting process. The pile stabilizing platform mounting process is achieved based on a negative pressure cylinder pile stabilizing platform, the negative pressure cylinder pile stabilizing platform comprises a platform body (1) and a negative pressure cylinder (2) arranged at the bottom of the platform body (1), the platform body (1) comprises a top platform (101) and a bottom platform (102), and the top platform (101) and the bottom platform (102) are connected through a vertical steel pipe (103); the negative pressure cylinder pile stabilizing platform further comprises a positioning and guiding device (3), the positioning and guiding device (3) comprises a centering device (301) arranged on the top face of the top platform (101) and a guiding sleeve (302) arranged on the side portion of the bottom platform (102), and the centering device (301) and the guiding sleeve (302) vertically correspond to each other in position. The platform is simple and efficient in transportation and hoisting, the steel pipe pile sinking vertical precision is high, and the overall pile sinking construction efficiency is high.

Description

technical field [0001] The invention relates to a pile stabilization platform installation process, which belongs to the technical field of offshore wind power pile foundation construction. Background technique [0002] Jacket foundations are widely used in offshore oil platforms, offshore lighthouse construction and offshore wind power projects. The existing domestic wind turbine projects have developed from the early intertidal zone to sea areas with a water depth of 30 to 50 meters. Generally, steel pipe piles are firstly constructed for the foundation construction of the jacket, and then the jacket is installed. Accuracy, including verticality, spacing, elevation, etc., puts forward extremely high requirements; the shortened operation window period in deep waters puts forward higher requirements for construction efficiency. [0003] Chinese patent application 202110292880.4 discloses a negative pressure barrel-type guide frame platform and its construction method for pi...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent application 202110292880.4 discloses a negative pressure barrel-type guide frame platform and its construction method for pile sinking construction. Since the height of the pile stabilization platform used in deep waters exceeds 40 meters, ordinary floating cranes or barges are used to lie horizontally. When the platform is transported, it is inconvenient to hoist the platform and the hoisting efficiency is not high; in addition, the verticality of the steel pipe piles is adjusted in two stages by relying on the pile guide device:

[0004] The first stage of adjustment is to adjust the distance between the first adjustment frame and the second adjustment frame according to the thickness of the steel pipe pile, and then fix the positions of the first adjustment frame and the second adjustment frame by bolts. The adjustment range of this adjustment structure is limited. The bolt hole distance is limited, and seamless adjustment cannot be achieved; when the verticality of the steel pipe pile deviates too much, there are cases where the surface of the steel pipe pile is over-extruded and damaged beyond its distance range; it can only be adjusted manually, Adjustment is relatively inconvenient and inefficient

[0005] In the second stage of adjustment, the steel pipe pile is tightened and loosened by rotating the screw to drive the slider to move, so as to realize the verticality control of the steel pipe pile. Avoid the existence of transmission gap, resulting in indirect feedback and low sensitivity when adjusting the verticality of steel pipe piles. As the gap gradually increases during use, there may even be a problem that the verticality deviates and cannot be adjusted in place

[0006] From the above analysis, it can be seen that the existing technology still cannot completely solve the problem of vertical precision control of steel pipe piles, and there is still room for further improvement in the overall construction efficiency of pile sinking

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