Comments by "David Himmelsbach" (@davidhimmelsbach557) on "Suez Canal: Why is freeing the stranded ship so complicated? | DW News" video.

  1. The SOLUTION is to time-reverse the collision dynamic. That is -- Pull the ship out BACKWARDS. The bow was hammered into the bank by the inertia of the vessel. So it's REALLY stuck much deeper into the soft bank than is visually apparent. Instead of tuggs, you need to position a DREDGE with its ANCHOR POLE driven deep into the bottom to provide a HIGH TORQUE pulling action. When ganged tugs are used, their propulsion merely defeats itself. In confined waters (the canal) the water pushed back by their props is hitting the hull causing a COUNTER FORCE to that exerted by the tugs. They are TOO CLOSE to provide significant NET tugging force. The emphasis should be on the STERN. Because of LEVERAGE ACTION, a torque applied at the stern will cause that torque to be multiplied at the bow. BTW, some attempt should be made to LIQUIFY the soil at the bow by VIBRATION. You want to eliminate hydro-static SUCTION between the steel and the soil. This liquifaction is best achieved by PUMPING sea water into the soil to pressurize it. You use the soil -- itself -- as a hydraulic ram. To stop the soil from blowing straight up under the compelled water pressure -- place STEEL PLATES atop the soil, then drill and pump. The current approach is actually completely backwards. You're not using hydrostatic pressure to SPIT THE BOW OUT. If it's too late to lay down steel plate -- go with fast setting slurry// concrete that can set-up in sea water. The oil drilling industry has this stuff to hand by the TON. What you end up doing is forcing pressurized water to leak where the mud is adhering to the ship's hull. Get it? Duh.
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