Positioning riprapping method for constructing island breakwater of artificial island

Abstract

The invention discloses a positioning riprapping method for constructing an island breakwater of an artificial island, which comprises the following steps: (1) positioning each steel pipe pile at places 15 to 17 meters away from the axial line of the island breakwater in turn at certain intervals by using a GPS positioning device, and driving the steel pipe piles into the soil at water bottom one by one; (2) simultaneously drawing a plurality of tuck net ships for transporting stones into each appointed pile site in a water area for constructing the island breakwater, wherein the prow and the stern of each tuck net ship are berthed alongside the steel pipe piles with cables, and the stern is thrown with a stern anchor to berth the tuck net ship in a riprapping area; (3) swinging the stones in cabins for multiple times by using shipborne cranes of the tuck net ships to riprap the stones at the appointed positions, and bearing off the ships from the site after riprapping the stones; and (4) drawing the next batch of the tuck net ships fully loaded with the stones into the riprapping site, and repeating the steps 1(2) to 1(3) until riprapping of the cross-section of the artificial island breakwater at that place is finished. The method adopts the steel pipe piles to replace positioning barges to greatly reduce the construction cost, improve the working efficiency, and shorten the construction period of the island breakwater of the artificial island.

Description

technical field [0001] The invention relates to a construction method of an artificial island embankment, in particular to a method for constructing an island embankment by using a net boat moored by positioning piles and used for riprap, and belongs to the technical field of hydraulic engineering. Background technique [0002] The construction of deep-water ports in some coastal areas lacking deep-water shorelines must rely on artificial islands in the open sea in deep-water areas far from the coast, with large tidal ranges and rapid tides, and be connected 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. The construction of the artificial island starts from the bottom of the island where the island is built. First, the steel sheet piles are laid, and then the soft row is laid on them. [0003] The existing method of riprapping artificial island dikes is to f...

AI Technical Summary

Problems solved by technology

In order to speed up the construction of artificial islands, it is necessary to use a large number of positioning barges for positioning, and a large number of transporting stone ships berthing and positioning barges throw stones. Each positioning barge must be positioned with a GPS positioning device, and tugboats are also required. The cost of use is very high; and positioning Barges have poor anti-wind and wave conditions and cannot adapt to harsh sea conditions

As the positioning barge anchors back and forth during positioning, in order to prevent the anchor cables of adjacent positioning barges from being entangled and interfering with each other, the positioning barges must be separated by more than 300 meters, which takes up too much space, and each positioning barge can only berth one transport The stone ship has low work efficiency and affects the progress of the project

Therefore, the method of using the positioning barge to locate first, and then letting the transport stone ship berth the positioning barge to build artificial island dikes by throwing stones can no longer meet the needs of large-scale construction of artificial islands by throwing stones in relatively concentrated areas.

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