How to calculate productivity of construction equipment
like excavator, dozer, rock breaker, riper

Answers were Sorted based on User's Feedback

How to calculate productivity of construction equipment like excavator, dozer, rock breaker, riper..

For calculating the productivity we have to know the
capacity of Excavator.

Let me assume the capacity of the Volvo 210 excavator =
1.22 Cum.

Consider the efficiency as 75% (This may be changing based
on the type of material to be excavated)

Therefore, net capacity = 1.22*75%= 0.92 Cum.

time per swing(unload,swing,fill,swing) = 20seconds =>
20/60 = 0.33minutes

Consider 5 minutes rest taken by the operatoer per hour.

Therefore, no of cycles per hour = 55/0.33 = 165

capacity per hour = 165*0.92 = 151.8 Cum/Hour

In similar fashion for dozer and other equipment can be
calculated.

 Is This Answer Correct ? 108 Yes 32 No

How to calculate productivity of construction equipment like excavator, dozer, rock breaker, riper..

Along with above calculation, the distance travelled by the machine should also been taken into account.

 Is This Answer Correct ? 43 Yes 5 No

How to calculate productivity of construction equipment like excavator, dozer, rock breaker, riper..

case-1 say komatsu 450 is used
1)bucket capacity-2.4 cum
2)ideal output=load per cycle*no. of cycle/hour
=2.4*100 (considering 35 second cycle say)
=240 cum
3) apply correction factors
a)excavator correction=0.8(if area is not a trench exactly bucket size in which case it is1
b)load factor=0.8(if load has to be dumped in tippers and not kept aside)
c)soil factor=0.67 in case of hard digging and0 .85 in medium digging
d)swing factor=1.07 for 75degree and 0.71 in case of 180 degree.
e)performance efficiency=0.83 if 50 minutes work is done in one hour.
4)corrected output=ideal ouput*a*b*c*d*e
ex: corrected output=240*0.8*0.8*.67*1.07*0.83=91.7 cum

 Is This Answer Correct ? 22 Yes 4 No

How to calculate productivity of construction equipment like excavator, dozer, rock breaker, riper..

calculation for productivity of construction equipment

 Is This Answer Correct ? 6 Yes 1 No

How to calculate productivity of construction equipment like excavator, dozer, rock breaker, riper..

There is a program can calculate that based on type of soil, distance to dump site etc. MechaNorm by Giant Robot Systems

 Is This Answer Correct ? 2 Yes 1 No

How to calculate productivity of construction equipment like excavator, dozer, rock breaker, riper..

I think 75% efficiency is correct as excavation of soil itself takes time & depends upon the area where excavation is to be done, if the excavation area is mix of soil & rocks then efficiency will be less & No. of cycles/hr will also come down.
This calculation is for ideal condition.

 Is This Answer Correct ? 0 Yes 1 No

How to calculate productivity of construction equipment like excavator, dozer, rock breaker, riper..

i believe that the 75% efficiency taken is of operator then the rest taken is not applicable as it is included in the efficiency. As well the material swell factor and the bucket fill factor should also be taken in account plus the machine availability factor should be also accounted (generally less 85 to 95% considered).

 Is This Answer Correct ? 1 Yes 5 No

More Civil Engineering Interview Questions

What is the meaning of Brick- M 35 grade? Is it a common brick or it's a concrete brick?

how to calculate concrete quantity for footing using M25 grade 1:1:2 for 730cft.

manhole chamber having height of 2300 mm and thickness of brickwork is 230 mm and dia of opening covering is 560 mm and bottom length vertical is 1500 mm (1:4) brick masonry and plaster 12 mm on both sides..how to estimate the no bricks used with mortar cement bags and sand for total chamber including plaster.

yet i am not got any hallticket from aai junior excequtive exam.any one got application form from aai.

The place Chakri Dadri which was recently in news in located in______ place? A) Uttar Pradesh B) Uttarakhand C) Rajasthan D) Haryana

what is a mix design GSB and WMM

convert 1 guntha = how many wars or 1 war = how many gunthas

water leak detection system question & answer

How many square meter can a worker/labor demolish a structure per day?

how can we find out the ratio of cement and sand in plastering

in one SQM plaster how much Cement and sand consumed in ratio 1:4

If u want ur Ans.Of any Question so mail me skatiyar011@yahoo.in

Categories
• Civil Engineering (4640)
• Mechanical Engineering (3704)
• Electrical Engineering (15780)
• Electronics Communications (2638)
• Chemical Engineering (762)
• Aeronautical Engineering (79)
• Bio Engineering (30)
• Metallurgy (95)
• Industrial Engineering (199)
• Instrumentation (2882)
• Automobile Engineering (171)
• Mechatronics Engineering (41)
• Marine Engineering (62)
• Power Plant Engineering (170)
• Engineering AllOther (1335)