"Underwater guided mud attacker" is also called "deep sea horizontal directional drilling system", which is mainly used for large shipwrecks at sea and for salvage. Through the remote directional drilling device, the “underwater guided tapping device†passes through the seabed under the sunken ship and the sinking object, so as to achieve the purpose of fishing and attracting the steel cable. The “Shenzhen I†developed by Shanghai Jiaotong University adopts the most advanced continuous tube drilling, inertial navigation positioning and terminal hydraulic control reversing technology in the world to realize independent design, development and integration. More than 90% of key equipments have been realized. Localization. The system has a complete underwater monitoring system, which can be completely remotely operated by water surface. It can realize horizontal directional crossing of seabed with maximum water depth of 200 meters and maximum drilling distance of 100 meters. It is the most advanced deep sea salvage system in the world.
It is understood that the "Sanhang Sand Pile 8" wreck salvage site is in a harsh environment and complicated. Due to the thick silt layer on the seabed, the wrecking ship is deeper and the seabed has a large adsorption force. It is necessary to first complete two jacking projects at the stern, and then lift the stern through the crane vessel to further inflate and float. However, because the lower layer of silt is a harder clay, the traditional method of artificially wearing a pound is not feasible. In this case, “Squat I†embodies a strong working ability. The two journeys are 30 minutes and 60 minutes respectively, and the return journey is about 25 minutes. The independently developed inertial positioning system and remote telemetry system are also It ensures that the positioning of the jacks on the seabed is highly accurate.
Hong Chong, director of the Guangzhou Salvage Bureau, said that in the case of insufficient processing capacity, a ship accident may cause long-term main channel or important sea area pollution. The successful application of “Shenzhen I†not only created a precedent for the use of mechanization and automation technology to achieve the salvage of steel cables within 200 meters of water depth, which enabled China's related technologies to reach the world's leading level, and greatly improved the emergency of shipwrecks in China. Processing capacity.
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