Method of pile-assembly and pile-pressing of double crane pile driving barge for construction of off-shore artificial island

Abstract

The invention discloses a method of pile-assembly and pile-pressing of a double crane pile driving barge for construction of an off-shore artificial island, comprising the following steps: (1) refitting a double crane box barge suitable for off-shore artificial island construction; (2) hoisting single-sheet steel plate piles to a pile area of the box barge; (3) assembling a group of 3 single-sheet steel plate piles into finished products of steel plate piles on the double crane pile driving barge; (4) facilitating the crane to insert lengthened steel sheet piles at the initiating terminal under underwater mud level; (5) facilitating a vibration hammer to press the lengthened steel sheet piles at the initiating terminal to a position the steel plate heads appear on the water surface; (6) facilitating the vibration hammer to press the steel sheet piles in sequence, facilitating the steel plate piles and the lengthened steel plate piles at the initiating terminal, the steel plate piles and the steel plate piles to be interlocked transversely pile by pile to form a steel plate wall under underwater mud level; (7) finishing pressing the lengthened steel plate piles at the initiating terminal to facilitate the head parts thereof to appear on the water surface. In the invention, the pile-assembly and pile-pressing are carried out simultaneously on the double crane pile driving barge with work efficiency being 9.6 times of the work efficiency of the prior art, thus greatly shortening construction cycle.

Description

technical field [0001] The invention relates to a construction method of an artificial island foundation, in particular to a steel sheet pile assembling and pile pressing method used for waterproofing an open sea artificial island with a large tidal range and belongs to the technical field of hydraulic engineering. Background technique [0002] In some coastal areas lacking deep-water shorelines, deep-water large ports must be built in deep-water areas far from the coast, with large tidal ranges and high tides, relying on artificial islands in the open sea, and connecting them to the land through bridges and pipelines. The artificial island project is the most important link in the construction of a deep-water port on a shallow coastline. In such an area, there is often no island shelter, and the seabed is severely scoured by the current to form a scour pit. For example, only the existing soft row is used to protect the bottom of the embankment If the method is used, the sta...

AI Technical Summary

Problems solved by technology

Due to the poor construction conditions in the open sea, there are strong winds and waves, many ships, and strong mutual interference. For example, when the wind and waves are strong, the transfer of the finished steel sheet piles between the assembly ship and the piling ship cannot be carried out. Low, a piling barge can only drive up to 10 steel sheet piles a day

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