Floating foundation overhead ship arresting facility with controllable resistance

Abstract

A floating foundation overhead ship arresting facility with controllable resistance is composed of floating foundations, supporting frames, damping boxes, an arresting net, an anchorage system and the like. A damping chain and an energy consumption cable are arranged in each damping box. When a ship collides with the arresting net, the arresting net drives the floating foundations to move towards a bridge location, the damping chains are pulled out, and therefore kinetic energy of the ship is consumed, and eventually the ship is prevented from moving towards the bridge location. The resistance of the damping chains can be designed, so that the out-of-control ship can be well protected. Even though part of the arresting net acts on a bow, the transversely-rotating angle of the ship and motion after transverse rotating of the ship is blocked are limited through the multiple floating foundations together, and arresting failures caused when the arrested ship transversely rotates can not occur. The floating foundations are used for supporting the arresting net, and the floating foundation overhead ship blocking facility can well adapt to variation of the water level, and be used in an abyssal region and used for transition and any extension. Under direct collision of the ship, the floating foundations deviate after being stressed, and therefore the arresting facility cannot break down.

Description

technical field [0001] The invention relates to an arresting vessel facility for protecting a bridge section of a non-navigation hole. Background technique [0002] At present, known bridge anti-ship collision engineering facilities mainly contain two types. [0003] One type is set on the pier, which uses the deformation of the anti-collision system to absorb the kinetic energy of the ship and prolong the impact time, thereby reducing the impact force of the ship. The technical level of such anti-collision engineering facilities is complicated, and the construction and installation costs are relatively high. For bridge sections with non-navigation holes, the net height under the bridge is usually limited, and it is necessary to protect both the pier and the superstructure at the same time, and it is difficult for such facilities to play a role. [0004] The other type is set at a certain distance from the ship’s side of the bridge section of the non-navigation hole, using...

AI Technical Summary

Problems solved by technology

For elevated fixed and hybrid types, the pile caps usually do not have the ability to withstand direct impact from large ships. If the pile caps are directly hit by ships, the arresting failure may occur

For the mooring type and the mixed type, the ship will inevitably turn horizontally during the arresting process, and the transverse flow force on the ship after the turnaround is much greater than the longitudinal flow force on the ship, and corresponding anchoring facilities are required. It will lead to high construction and installation costs, otherwise it will not be able to effectively arrest out-of-control ships

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