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1、Block InspectionSeptember 2004Blocks in E/R double bottomSide shell blockTop side tank blockJoining two blocksScope of block inspectionProper use of materialContinuity of structure (1/3)Continuity of structure (2/3)Standard of lap length30Continuity of structure (3/3)Assembly accuracyLug connectionC
2、lip connectionSnip connectionBracket connection (lap)Bracket connection (butt)Required strength vs end connectionZreq = 7CShl2 S: space h: head l: spanEngine girderWorkmanship for engine girderGenerator engine bedDouble bottom constructionSure touchDefect around prepared edgeContinuous fillet weld (
3、1/3)Continuous fillet weld (2/3)Continuous fillet weld (3/3)Defect at circumference of block (1/4)Defect at circumference of block (2/4)Defect at circumference of block (3/4)Defect at circumference of block (4/4)Inner groove for small angleWithout “water cut weld”With “water cut weld”Air hole & drai
4、n holeCharging to tankDischarging from tankChecking off of block planStern frame (for “A” type)Stern frame (for “D” type)Fabrication of shoe piece (1/2)Fabrication of shoe piece (2/2)Air test of shoe pieceWelding of stern frameAccuracy in stern frameAlignment of rudder center line (1/5)Alignment of rudder center line (2/5)Alignment of rudder center line (3/5)Alignment of rudder center line (4/5)Alignment of rudder center line (5/5)Accuracy in hatch cover block
