Structure Cofferdams and supported excavations and location Temporary Ref/Drawing Nos. works Ref No. Defect Identified Tick ( Completed Approved Signature √ Check Item ) 1 Current and approved drawings 2 Correct and serviceable materials used 3 Loading method statement 4 Design checks 5 Construction sequence clearly stated 6 The specified sheet pile section and quality is correct 7 Sheet pile penetration below final excavation level 8 Surcharge allowance as designed and within specified limits 9 Frames as drawings and at specified level 10 Web stiffeners aligned correctly 11 Are the frames aligned to preclude gaps/misalignment? 12 Have the correct bolts and grades been used? 13 Have the frames been manufactured from the correct steel grades 14 Welding is satisfactory and of the correct specification to suit the grade of steel in use 15 Framing members are suitably supported by hangers, king piles, brackets, chains etc. 16 Packing between frames and sheet piles bearing uniformly, i.e. as concrete bags. Packing of adequate size and suitable material 17 Cofferdams in water: is there adequate plan and vertical shear capacity? Is this required? 18 No gaps are left unplugged in the sheet piling, which could otherwise lead to instability of the surrounding ground through leaching/loss of fines Check Item Defect Identified Tick ( Completed Approved Signature √ )
Cofferdams and supported excavations Structure and location Ref/Drawing Nos. Temporary works Ref No. Check Item Defect Identified Tick ( √ ) Completed Approved Signature 1 Current and approved drawings 2 Correct and serviceable materials used 3 Loading method statement 4 Design checks 5 Construction sequence clearly stated 6 The specified sheet pile section and quality is correct 7 Sheet pile penetration below final excavation level 8 Surcharge allowance as designed and within specified limits 9 Frames as drawings and at specified level 10 Web stiffeners aligned correctly 11 Are the frames aligned to preclude gaps/misalignment? 12 Have the correct bolts and grades been used? 13 Have the frames been manufactured from the correct steel grades 14 Welding is satisfactory and of the correct specification to suit the grade of steel in use 15 Framing members are suitably supported by hangers, king piles, brackets, chains etc. 16 Packing between frames and sheet piles bearing uniformly, i.e. as concrete bags. Packing of adequate size and suitable material 17 Cofferdams in water: is there adequate plan and vertical shear capacity? Is this required? 18 No gaps are left unplugged in the sheet piling, which could otherwise lead to instability of the surrounding ground through leaching/loss of fines Check Item Defect Identified Tick ( √ ) Completed Approved Signature
DW42F09B%20-%20Temporary%20Works%20%96%20Record%20of%20Coffer%20DamExcavation%20Inspection.docx