Piling process of conduit frame pile pipes

Abstract

The invention discloses a piling process of conduit frame pile pipes. The piling process comprises the following steps that 1, a crane on a workboat lifts a first platform (1) to the target sea surface; 2, auxiliary piles inserted into auxiliary pile holes (1.1) of the first platform (1) are inserted into the seabed; 3, the crane lifts a second platform (2) onto the first platform (1); 4, the pilepipes are inserted into engineering pile upper guide holes (2.1) and engineering pile lower guide holes (2.2) of the second platform (2); and 5, after the tops of the pile pipes are located below theengineering pile upper guide holes (2.1), cohesion pipes are inserted into the engineering pile upper guide holes (2.1), and the engineering piles continues to be downwards inserted into the seabed in the engineering pile lower guide holes (2.2) through the cohesion pipes. The piling process of the conduit frame pile pipes has the advantages that construction cost is low, and construction efficiency is high.

Description

technical field [0001] The present invention relates to a jacket pile pipe piling process, in particular to a process for performing piling operations on pile pipes (engineering piles) used as jacket pile foundations in the early stage of jacket installation in offshore wind power construction, which belongs to offshore wind power technology field. Background technique [0002] At present, in the installation process of offshore wind turbines, the jacket as the platform of the wind turbine needs to be installed on pile pipes (engineering piles). The positioning of the pile pipe is very important, otherwise the accumulated errors will lead to the failure of the normal installation of the jacket; in today’s construction technology, in order to avoid and reduce errors, foreign companies have designed a sunken installation platform; during construction, the installation platform is directly lifted Go to the target sea surface, then sink it to the seabed, and then insert the pil...

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Problems solved by technology

[0003] However, this method is not suitable for my country's national conditions. Because the seabed silt layer in many sea areas of our country is thick, the installation platform will continue to sink after being hoisted to the seabed until it is submerged in the sea mud. Therefore, foreign installation platforms cannot be used in my country. At the same time, the above-mentioned installation platform needs to be equipped with an automatic adjustment mechanism so that it can ensure that the platform is in a horizontal state on the seabed, thereby greatly increasing the complexity of the entire platform and increasing the cost; Jacket Pile Insertion Technology Adapting to my country's National Conditions with Simple Structure and High Construction Efficiency

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