Cost Analysis For The Use Of Different Types Of Pile

  • November 2019
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Estimation $/m without additional cost Labor Charges Wage/Manday Skilled Labour/ Operator 40 Unskilled Labor 20 Supervisor 50

No. 1 2 1

Assume driven (m/day) Maximum operating hours per day (hrs/day) Time taken to drive pile in hour (hr/m)

Hours/ day Days/Month Wage/Month Bonus/Year 8 22 880 1760 8 22 440 880 8 22 1100 2200 Total Labour Charge per Hour ($/hr) 100 8 0.08

Total Labor Charge per metre run ($/m) Hire Rate inc. fuel &consumables per metre run ($/m) without mobilization Total Labor Charge plus Hire Rate per metre run ($/m) Type

Dimension

Length

Working Load

RC Precast RC Precast RC Precast RC Spun

(mm) 250x250 300x300 350x350 300

(m/pile) 9 12 12 12 12

RC Spun

600

$/hr 5.83 5.83 7.29 18.96

(tons) 60 80 100 84

Price of Material ($/m) 30 37 48 24

Labour & Hire Rate ($/m) 4.52 4.52 4.52 4.52

293

70.35

4.52

Note: The above exclude additional factors. Adjusted cost will include mobilzation of plant, wastage and fillet-weld of pile. These chiefly depended upon depth of pile work to be done and number of plant hired. Then only no. of piles can be estimated. Variable that depends on projects Standard information (information given) Functionised do not change

1.52 3 4.52 Inflation Estimation 10% of before Operation adjustment ($) ($/m) 0.45 34.97 0.45 41.97 0.45 52.97 0.45 28.97 0.45

75.32

Estimation $/m with additional factors on: Mobilization & Demobilization of Plant Fillet-Welding of joint Essential information: Cost of fillet-weld per no. ($/no.) Assume no of plant (item) Cost of Mobilization ($/item)

5.00 1 2000

Type

Dimension

Length

RC Precast RC Precast RC Precast

(mm) 250x250 300x300 350x350 300

(m) 9 12 12

(tons/ no. of pile) 60 80 100

(ton) 500 500 500

(no. of pile) 8.33 6.25 5.00

(no. of pile) 9 7 5

12

84

500

5.95

6

12

293

500

1.71

2

RC Spun RC Spun

600

Working Load

Assumed Qty of Pile Load

Considering Safety Factor Hence take Whole Qty

Adjusted Estimation including Fillet-Weld and Mobilization of Plant (without wastage) Type Dimension Length Calculated Qty. of Cost Cost Estimation Adjusted Depth pile of of before Estimation of including Fillet-Weld Plant adjustment without Pile safety Mobilization b/f wastage Work factor RC Precast RC Precast RC Precast RC Spun RC Spun

(mm) 250x250 300x300 350x350 300 600

(m/pile) 9 12 12

(m) 75.00 75.00 60.00

(no) 9 7 5

($) 40 30 20

($) 2000 2000 2000

($/m) 34.97 41.97 52.97

($) 4662.63 5177.75 5198.20

Adjusted Estimation without wastage cost per meter ($/m) 62.17 69.04 86.64

12

71.43

6

25

2000

28.97

4094.29

57.32

12

20.48

2

5

2000

75.32

3547.39

173.23

Estimation $/m with additional factors on: Wastage Essential Information: Wastage in metre (m) Wastage is Charge ($/trip) Assumed Trip Type

RC Precast RC Precast RC Precast RC Spun RC Spun

Dimension

(mm) 250x250 300x300 350x350 300 600

Calculated below 60 1 Length

Working Load

Assumed Load

Qty. of Pile

Considering Safety Factor Hence take Whole Qty

(m) 9 12 12

(tons/no.) 60 80 100

(ton) 500 500 500

(no. of pile) 8.33 6.25 5.00

12

84

500

5.95

6

12

293

500

1.71

2

(no. of pile) 9 7 5

Final Estimation including Fillet-Weld, Mobilization of Plant and wastage Type Dimension Length Calculated Qty. of Wastage Wastage Adjusted Final Depth of pile in disposed Estimation Estimation Pile Work including metre off-site without with Safety wastage wastage Factor b/f RC Precast RC Precast RC Precast RC Spun RC Spun

(mm) 250x250 300x300 350x350 300 600

Final Estimation with wastage

(m/pile) 9 12 12

(m) 75.00 75.00 60.00

(no) 9 7 5

(m) 6.00 9.00 0.00

($) 60 60 60

($) 4662.75 5177.75 5198.20

($) 4722.75 5237.75 5198.20

($/m) 62.97 69.84 86.64

12

71.43

6

0.57

60

4094.29

4154.29

58.16

12

20.48

2

3.52

60

3547.39

3607.39

176.16

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