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Cutter Suction Dredger Three-cable Positioning System Introduction

 Below we introduce the three-cable positioning system of the cutter suction dredger:
     The three-cable positioning system is currently the most mature positioning system for cutter suction dredgers in the world.
     The three-cable positioning system usually refers to three positioning anchors and three positioning cables. They are: tail anchor, left anchor, right anchor, tail cable, left cable, and right cable. The three-cable positioning system requires three winches to retract three anchor cables, and three cables to locate the center of the cable to fix the position of the vessel.
    During the operation of the cutter suction dredger, the three-cable positioning system cooperates with the transverse anchor system to complete the swing and forward movement of the vessel. Three-cable positioning is particularly suitable for operation in deep water areas, but because of its inherently flexible positioning, it is best suited for use in excavating softer soils. Of course, it can also be used to find hard soil, but when excavating hard soil, the hull often has intermittent vibrations, affecting the stability of the excavation. When the three cables are positioned, they occupy a large area of water and should not be used in small water areas. Because of the characteristics of the positioning method of the three-cutter suction suction dredger, the driver should adjust the tightness of the three positioning cables according to the tide conditions at any time during the construction of the port area with a large tidal range to ensure that the tide cables are tight and fall into the water during construction. The cable is too loose to move up. When the dredging vessel is advancing in construction, because the diameter of the cable on the cable strands is different, it is easy to cause the seizure to shift or advance too large when the vessel advances. The operator must pay attention to the adjustment at any time.


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