TY  - GEN
AB  - This paper considers the issue of gaining access to the full extent of a vessel’s bottom plating whilst it is dry docked. The current methods of secondary docking positions and block removals are reviewed and a new approach using jacks is presented. The development of an initial version of the new approach is described. This covers the elements of removal and replacement concept, general arrangement, limitations of the existing equipment, removal equipment and wood compression properties. These aspects are then brought together to create the requirements for the jacks. Operational experience on the first three dockings using the initial version at Babcock’s Devonport site is discussed. The limitations of the initial approach are quantified and a fully developed solution which allows 100% block removal is presented. The paper concludes that the new approach of using jack-able super blocks provides benefits to both the shipyard and the ship operator. This project has been achieved through new research and the application of a sound knowledge of engineering and tolerances. The intellectual property of the paper is the subject of a pending patent. 
AD  - Babcock International Group – Energy and Marine Technology, Devonport, UK
AD  - Babcock International Group – Energy and Marine Technology, Devonport, UK
AU  - Kerr, G
AU  - Georgantzi, N
DA  - 2018-10-03
ID  - 7616
JF  - Conference Proceedings of INEC
KW  - Dry dock
KW  - Super dock blocks
KW  - Dock blocks
KW  - Block removal
KW  - Block replacement
KW  - Jack
L1  - https://library.imarest.org/record/7616/files/INEC%202018%20Paper%20071%20Georgantzi%20FINAL.pdf
L2  - https://library.imarest.org/record/7616/files/INEC%202018%20Paper%20071%20Georgantzi%20FINAL.pdf
L4  - https://library.imarest.org/record/7616/files/INEC%202018%20Paper%20071%20Georgantzi%20FINAL.pdf
LK  - https://library.imarest.org/record/7616/files/INEC%202018%20Paper%20071%20Georgantzi%20FINAL.pdf
N2  - This paper considers the issue of gaining access to the full extent of a vessel’s bottom plating whilst it is dry docked. The current methods of secondary docking positions and block removals are reviewed and a new approach using jacks is presented. The development of an initial version of the new approach is described. This covers the elements of removal and replacement concept, general arrangement, limitations of the existing equipment, removal equipment and wood compression properties. These aspects are then brought together to create the requirements for the jacks. Operational experience on the first three dockings using the initial version at Babcock’s Devonport site is discussed. The limitations of the initial approach are quantified and a fully developed solution which allows 100% block removal is presented. The paper concludes that the new approach of using jack-able super blocks provides benefits to both the shipyard and the ship operator. This project has been achieved through new research and the application of a sound knowledge of engineering and tolerances. The intellectual property of the paper is the subject of a pending patent. 
PY  - 2018-10-03
T1  - An introduction to the Babcock designed super dock blocks
TI  - An introduction to the Babcock designed super dock blocks
UR  - https://library.imarest.org/record/7616/files/INEC%202018%20Paper%20071%20Georgantzi%20FINAL.pdf
VL  - INEC 2018
Y1  - 2018-10-03
ER  -