1. DOZER (D – 6)
Speed = 1.5 Km / Hr.
No. of Passes = 3
Width of Blade = 2 Mtr.
Operating Efficiency = 75%
CAPACITY = (1500 X 2 X 0.75) /3
Levelling Earth (750 x 0.2) 150 Cum / Hr.
2. LOADER
(a) 3.1 cum. Bucket
Bucket = 3.1 Cum
Cycle Time in Plat= 1 Minute
Efficiency = 80%
CAPACITY = (3.1 X 0.8 X 60) /1 = 150 Cum / Hr.
(b) 1.7 Cum Bucket
Bucket = 1.7 Cum
Cycle Time in Plant = 2.5 Minute
Efficiency = 80%
CAPACITY = (1.7 X 0.8 X 60) /2.5 = 35 Cum / Hr.
3. EXCAVATOR
Ck – 90 (0.9 Cum Bucket)
Bucket = 0.9 Cum
Cycle Time in Plant = 35 Sec.
Efficiency = 80%
CAPACITY = (0.9 X 60 X 0.8X 60) /35 = 75 Cum / Hr.
4. GRADER (Spreading & Grading) BEML 165 HP
Speed = 3 Km / Hr.
Blade = 1.7 Mtrs.
Layer Thickness = 0.25 Mtrs.
No. of Passes = 5 efficiency=75%
CAPACITY = (3000 X 1.7 X 0.75 X 0.25) /5 = 192 Cum /Hr.
5. VIBRATORY COMPACTOR (Compaction) 8 to 10 T
Static wt. Dual Frequency,
Speed = 2 Km /Hr.
Drum Width = 2 Mtrs.
Layer Thickness = 0.25 Mtrs.
Efficiency = 80%
No. of Passes = 6
CAPACITY = (2000 X 2.0 X 0.80 X 0.25) /6 = 130 Cum / Hr
6. TIPPERS
Earth Work
Tipper capacity = 7.5 Cum.
Cycle Time
Average Lead = 5.5 Km (11 KM Bothway)
Loading Time & Turning On= 7 Mins.
Leading Average Speed (20 Km / Hr) = 33 Mins.
Unloading & Turning On = 5 Mins
Total Cycle Time = 45 Mins. Say 45 Min.
CAPACITY = (7.5 X 60) / 45 = 10 Cum / hour
7. Batching Plant Cp 30
Batching Plant Capacity = 30 Cum/ Hr.
Efficiency = 80%
Capacity = 24 Cum/Hr.
8. Concrete Pump
Concrete Pump Capacity = 30 Cum/ Hr.
Efficiency = 80%
Capacity = 24 Cum/Hr
9. Transit Mixer
Transit Mixer capacity = 6 Cum.
Cycle Time
Average Lead = 5.5 Km (11 KM Bothway)
Loading Time & Turning On= 3.5 Mins.
Leading Average Speed (20 Km / Hr) = 33 Mins.
Unloading & Turning On = 35 Mins
Total Cycle Time = 71.5 Mins. Say 72 Min.
CAPACITY = (6 X 60) / 72 = 5 Cum / hour
ESTIMATING REQUIREMENT OF MACHINES ON THE PROJECT
ASSUMPTIONS
- Out Put of the machines to be taken as calculated before,.
- Working day per month = 26 days
- Working hours per day = 12 hours
- Monsoon season is taken as 3 months.
- Monsoon season efficiency is 75%
REQUIREMENT OF MACHINES
EXCAVATION
QUANTITY Maximum = 20000 CUM/ Months
QUANTITY Average = 10378 Cum/ Months
Duration = 1 x 26 x 12 = 312 hours
Sr.No | Machines | Capacity | Peak | Average | Final |
1 | Excavator | 75 cum/hr | 0.85 | 0.44 | 1 |
2 | Dozer | 150 cum/hr | 0.42 | 0.22 | 1 |
3 | Loader | 35 cum/hr | 1.831 | 0.950 | 2 |
4 | Tipper | 10 cum/hr | 6.410 | 3.32 | 5 |
FILLING , SPREADING AND COMPACTION
QUANTITY Maximum = 20000 CUM/ Months
QUANTITY Average = 12681 Cum/ Months
Duration = 1 x 26 x 12 = 312 hours
Sr.No | Machines | Capacity | Peak | Average | Final |
1 | Dozer | 150 cum/hr | 0.42 | 0.27 | 1 |
2 | Grader | 192 cum/hr | 0.33 | 0.21 | 1 |
3 | Compactor | 130 cum/hr | 0.49 | 0.31 | 1 |
4 | Tipper | 10 cum/hr | 6.410 | 4.06 | 5 |
CONCRETE
Duration = 1 x 26 x 8 = 208 hours
Sr.No | Machines | Uom | Peak | Average |
1 | Canal Bed | Cum/Months | 90 | 54 |
2 | Canal Slopes | Cum/Months | 550 | 371 |
Total | Cum/Months | 640 | 425 |
Sr.No | Machines | Capacity | Peak | Average | Final |
1 | Batching Plant | 24 cum/hr | 0.12 | 0.08 | 1 |
2 | Concrete Pump | 24 cum/hr | 0.12 | 0.12 | 1 |
3 | Transit Mixer | 5 cum/hr | 0.615 | 0.40 | 2 |
4 | Plate Vibrator | 6 |
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