Roll-on and roll-off boarding method for offshore wind power foundation steel pipe pile

Abstract

The invention discloses a roll-on and roll-off boarding method for an offshore wind power foundation steel pipe pile, the roll-on and roll-off boarding method comprises the following steps: collectinghydrologic data of a wharf in the loading period; calculating the water pump flux of ballast water of a pile shipping barge and the boarding speed and the roll-on and roll-off operation time of a roll-on and roll-off vehicle; berthing the pile shipping barge near a roll-on and roll-off position of the wharf, regulating the posture of the wharf and the height of a deck by regulating the ballast water, reliably mooring a mooring rope between the pile shipping barge and the wharf; placing the steel pipe pile on the roll-on and roll-off vehicle; after the plane of the deck of the pile shipping barge and the plane of the wharf are basically level in the flood tide, arranging a roll-on and roll-off approach road between the wharf and the tail part of the pile shipping barge; driving the roll-onand roll-off vehicle to slowly move towards the pile shipping barge, constantly regulating the ballast water to regulate the posture of the pile shipping barge in the process, keeping the deck of thepile shipping barge to be level with the wharf all the time; and after finishing shipping, enabling the roll-on and roll-off vehicle to automatically unload and get off the pile shipping barge. The roll-on and roll-off boarding method is not only safe and reliable, but also saves the transportation money.

Description

technical field [0001] The invention relates to a rolling-on-rolling method for steel pipe piles of offshore wind power foundations. Background technique [0002] Offshore wind power foundation steel pipe piles are the key structures for wind power fixed on the sea. The diameter of the steel pipe pile is φ6.7m~φ7.3m, the wall thickness is 60mm~80mm, the length is 58m~78m, and the weight of the steel pipe pile is 900t~1100t. Supporting logistics services in the manufacturing process of steel pipe piles, including assisting segmental docking and short fall of steel pipe piles, whole pile short fall and roll-on services. Safely transferring such a heavy structure onto a barge for on-site installation offshore has always been a daunting construction project when performing ro-ro services. At present, foundation steel pipe piles in the wind power industry are shipped by sea. Due to their large volume and dead weight, thousand-ton gantry cranes or floating cranes are usually use...

AI Technical Summary

Problems solved by technology

However, the operation cost of thousand-ton hoisting equipment is relatively high, and the risk factor in the lifting process of heavy objects is extremely high. Not only does it require experienced operators and command personnel, but also when placing pile plates, the hull deck is instantly stressed, which is prone to personnel accidents. Therefore, the traditional The shipping method is not only a huge loss of funds, but also difficult to guarantee the safety situation

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