Launch driving barge with ship launching balloon

Using ship launching balloons , Evergreen Maritime successfully launched a 1505 tonnes pile driving barge for CCCC Harbor Engineering Company on 4th June .That floating pile driver is 48 meters long , 22 meters wide and its molded depth is 4 meters . The designed maximum heavy piling it can drive is 55 tonnes .

Compared to some common vessels in the shipyards , the holder structure of the Pile driver has a much more higher vertical gravity center  .  Hence , during  the whole balloons  launching process , people should control the vessel’s titled angle . Also the unbalanced weight distribution of pile driver should be arranged by ship launching balloons carefully .

Considering the difference of launch conditions and avoid any safety problems, our engineering team made two launch plans . Each plan was calculated and designed carefully . On 4th June when all the launch preparations were finished and water level reached the demand height , people chopped up holding wire ropes to release the vessel . The pile driver entered into water with rolling bags quickly and smoothly . Total launch process took only 50 seconds from the launch start to vessel float .

Meanwhile , Some measure instruments were deployed to test the launch . The results turned out to be the tested titled angle during vessel launching is much bigger than expected . Then our engineers surveyed the launching area thoroughly twice  and found some data provided by shipbuilding  unaccurate . Even the launch is successful and safe , we still take this project as a big warning : no matter how rushed project it is , important information must be confirmed twice by two engineers from Eversafe Marine and Shipyard .