A digging construction method of the submarine foundation

Title:

A digging construction method of the submarine foundation

Document Type and Number:

Japanese Patent JP6069587

Kind Code:

B2

Abstract:

The present invention relates to a seabed ground excavation method for easily excavating the ground even in the seabed to construct a mono-pile by which a wind power generator, etc. can be installed. The seabed ground excavation method, according to the present invention, comprises: a mounting step (S100) for installing basic equipment for submarine excavation at a place where work is to be performed; a semicircular casing installation step (S130) for making a plurality of semicircular casings (60) form a circle in the seawater; a ground excavation step (S160) for excavating the seabed ground inside the plurality of semicircular casings (60); a mono-pile installation step (S180) for installing a mono-pile (90) in the seabed ground where the ground excavation step (S160) and a muck removal step (S170) are completely performed; an inside filling step (S190) for filling the inside of the lower end portion of the mono-pile (90) installed by the mono-pile installation step (S180); a semicircular casing removal step (S200) for removing the plurality of semicircular casings (60) outside the mono-pile (90) by extracting the semicircular casings (60) from the sea; and a mono-pile fixing step (S210) for fixing the mono-pile (90) by placing concrete outside the lower end portion of the mono-pile (90). The present invention as described above can facilitate work of installing a mono-pile having a large diameter in the seabed.

Inventors:

Chang Yun-Young
Yujifun
Kim yon il
Chattaehyun

Application Number:

JP2016515995A

Publication Date:

February 01, 2017

Filing Date:

September 15, 2014

Export Citation:

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