subject: project scheduling and control

Demonstrate the understanding of project schedule and control The tabulation below (Table 2) shows a bill of quantity for the construction of an Earth Retaining Structure with the following information: i. Quantity estimated at start of the work & Rate quoted by the contractor ii. Progress updated after 4 months iii. Quantity of each item of work assessed after 5 months Item Description Unit Qty Rate Progress after 4 months Quantity assessed after 5 months 220 987.00 864.00 763.50 302,760 30% 40% 50% 240 5,400 12,650 1.2 15% 15,450 763.50 13,390 5% 763.50 118,790 5,250 2 m 972.00 5% 1 Diaphragm Walls 1.1 Structure A 1.1.1 Grade 40 in 600 mm thick m 1.1.2 Grade 40 in 1000 mm thick m 4,750 1.1.3 Grade 40 in 1200 mm thick m 11,750 1.1.4 Capping beams and guide walls Item Structure B 1.2.1 Grade 40 in 1200 mm thick 15,450 1.2.2 Capping beams and guide walls Item 1.3 Structure 1.3.1 Grade 40 in 1200 mm thick 5,250 1.3.2 Capping beams and guide walls Item Secant Pile Wall System (Grade 40) 2.1 Structure D 2.1.1 750 mm dia. primary and secondary piles 240 2.2 Structure E 1200 mm dia. primary and secondary 2.2.2 m piles Barrette Piles (Grade 40) 1200 mm wide x 2800 mm long (36 nos) 1,020 1200 mm wide x 3000 mm long (3 nos) 80 1200 mm wide x 7000 mm long (1 nos) 1200 mm wide x 10000 mm long (2 nos) Testing Micropiles (Grade 35) 300 mm diameter (Structure A 15 nos) 300 mm diameter (Structure D 18 nos) 295 Table 2: Bill of Quantities 270 580 896.90 625 3 3.1 30% 1,020 3.2 20% 90 32 3.3 3,995.40 3,823.00 10,302.00 7,845.00 685,850 21 15% 3.4 m 41 10% 45 3.5 Item 4 4.1 m 272 178.00 272 4.2 m 178.00 295 Compute the following: Total contract value (10 marks) (b) Weightage by Diaphragm Walls - by structure and overall (10 marks) (c) Weightage by Barrette Piles (5 marks) (d) Provide justification on the basis used to compute the weightage (5 marks) (e) Value of work done based on the progress information (5 marks) (1) Compute in percentage the Overall Progress (to 2 decimal places) (5 marks) (8) Weightage by Activity name after considering the variation (10 marks) (h) Explain the rationale behind your response in (9) (5 marks) (i) Compute in percentage the Overall Progress after Variation (to 2 decimal places) (5 marks) (60 marks) Demonstrate the understanding of project schedule and control The tabulation below (Table 2) shows a bill of quantity for the construction of an Earth Retaining Structure with the following information: i. Quantity estimated at start of the work & Rate quoted by the contractor ii. Progress updated after 4 months iii. Quantity of each item of work assessed after 5 months Item Description Unit Qty Rate Progress after 4 months Quantity assessed after 5 months 220 987.00 864.00 763.50 302,760 30% 40% 50% 240 5,400 12,650 1.2 15% 15,450 763.50 13,390 5% 763.50 118,790 5,250 2 m 972.00 5% 1 Diaphragm Walls 1.1 Structure A 1.1.1 Grade 40 in 600 mm thick m 1.1.2 Grade 40 in 1000 mm thick m 4,750 1.1.3 Grade 40 in 1200 mm thick m 11,750 1.1.4 Capping beams and guide walls Item Structure B 1.2.1 Grade 40 in 1200 mm thick 15,450 1.2.2 Capping beams and guide walls Item 1.3 Structure 1.3.1 Grade 40 in 1200 mm thick 5,250 1.3.2 Capping beams and guide walls Item Secant Pile Wall System (Grade 40) 2.1 Structure D 2.1.1 750 mm dia. primary and secondary piles 240 2.2 Structure E 1200 mm dia. primary and secondary 2.2.2 m piles Barrette Piles (Grade 40) 1200 mm wide x 2800 mm long (36 nos) 1,020 1200 mm wide x 3000 mm long (3 nos) 80 1200 mm wide x 7000 mm long (1 nos) 1200 mm wide x 10000 mm long (2 nos) Testing Micropiles (Grade 35) 300 mm diameter (Structure A 15 nos) 300 mm diameter (Structure D 18 nos) 295 Table 2: Bill of Quantities 270 580 896.90 625 3 3.1 30% 1,020 3.2 20% 90 32 3.3 3,995.40 3,823.00 10,302.00 7,845.00 685,850 21 15% 3.4 m 41 10% 45 3.5 Item 4 4.1 m 272 178.00 272 4.2 m 178.00 295 Compute the following: Total contract value (10 marks) (b) Weightage by Diaphragm Walls - by structure and overall (10 marks) (c) Weightage by Barrette Piles (5 marks) (d) Provide justification on the basis used to compute the weightage (5 marks) (e) Value of work done based on the progress information (5 marks) (1) Compute in percentage the Overall Progress (to 2 decimal places) (5 marks) (8) Weightage by Activity name after considering the variation (10 marks) (h) Explain the rationale behind your response in (9) (5 marks) (i) Compute in percentage the Overall Progress after Variation (to 2 decimal places) (5 marks) (60 marks)