3D Point Cloud Data Basis Shape Management for Assembly of Modularized Large and Complicated Marine Structures

Table 2

Cost burden examples of existing methods for the leg block assembly.

	Dimensions	Weight (abt.)	Crane capacity	Additional cost caused by construction delay in the dock
				Crane	Man-hour	Construction delay	Additional cost
Case  1	65 m × 32 m	7,000 ton	9,000 ton	14 hours	37 m/h × 14 h	1.5 days	268,000; US dollars
Case  2	37 m × 34 m	4,500 ton	9,000 ton	10 hours	37 m/h × 10 h	1 day	250,000; US dollars
Case  3	37 m × 34 m	4,500 ton	9,000 ton	12 hours	37 m/h × 12 h	1 day	223,000; US dollars