Thanks for your vauable and specific answer to my querry.The pipe dia is 56 inch.Please let me know of what other inputs u need for resource planning.I have already mentioned pipe dia in my post.42 months duration for pipeline includes duration for engineering , procurement and construction ,testing ,commissioning complete.Time slots for various construction activities are given in my post/querry and these time slots are based on overall masterschedule for the pipeline.I eagerly look forward to hearing from you so that i can make a more accurate resource planning for the project.
Refards
Sanjeev
Member for
21 years 7 months
Member for21 years7 months
Submitted by Mohamed Basheer on Sun, 2007-06-10 03:50
Mr.Sanjeev, See the following information is useful.
Your Project Scope is 690Km Pipeline - What dia? Say 600-1000 Dia, To be done in 42 months. Keeping 2 months for Commissioning and 20% time for Testing , Repair Retest etc you endup with 960 days. So keeping unit length of pipe as 12m You need to install 60 Peices of pipe per day and to excavate 718m of trench may be around 5000 cum of soil which may require 38-40 Excavators. If the pipe is of 1m dia then each joint root+ fill + cover weld will take 1 welderday so you need 60 welders working.
If you keep an unit of 10welders + 7 Excavators + 3 Cranes then the spread length comes to 120 m/ day per unit.
You may need 10 such units working.
The information you have given is not sufficient to make exact resourcing.
your project is huge, and it is an EPC contract to be done in 42 months? You might need a hell of Planners?...
by the way, i suppose 42 months is just a guess as theres no Engineering yet, and you still dont know the terrain. Planning at this stage is still a guess until you got Engineering data.
I had done 125 km of pipeline project but for pre-insulated GRP pipes.
I had finalized the SPREAD LENGTHS based on the hydrotesting lengths. Please check the work method statement / Quality Control Documents for the same.
Please note that in pipeline construction, you need to do the hydrotest with fresh /potable water. Wastage will lead to heavy cost. Generally, the hydrotest lengths are in kilometers.
For optimum utilisation of manpower and machinary and to finish the project on time, you can split the total line into say 6 or 8 CREWS and each crew will be given a sequence of spreads.
All the crew works can go simultaneously.
Productivity rates for delivery of pipes / excavation / bending / testing to be decided in the initial stages of the project before starting the P3 program itself. e.g.if a crew has 80 km of stretch and daily delivery of pipes is 800m then total days required for delivery of pipes will be 100 days. Consider a cycle time of say 45 days between laying and hydrotesting completion of pipes for a spread. You can ask ur construction manager for this cycle time.
e.g. If the pipe delivery finish date is 01/09/07 and cycle time is 60 calender days, then hydrotesting will finish on 31/10/07
I have done some planning for refinery pipeline, but that was a detail plan. For your level of planning you need a standard and a professional estimator. You will have to find out if the pipeline has been designed and consult that document too.
Ta
ALKA
Member for
18 years 6 months
Member for18 years6 months
Submitted by Oliver Melling on Fri, 2007-05-25 10:57
I have never planned a pipeline before but my view is....
The spread length will depend on many things, such as the length of pipe being delivered, the design of the pipeline and the requirements within the pipe specification.
The distribution of manpower will depend upon many things also, such as the availabilty of resource, the weld specification for the pipework and the type of testing required.
Even though you are currently presuming uniform rock strata, I imagine over 690k the terrain will change quite a lot also and so access for machinery/resource (thus working times) will not be uniform.
I recommend you ask an estimator or cost engineer in your company for assistance.
Member for
18 years 8 monthsRE: EQUIPMENT & MANPOWER PLANNING FOR PIPELINE CONSTRUCTN
Dear Mr Basheer !
Thanks for your vauable and specific answer to my querry.The pipe dia is 56 inch.Please let me know of what other inputs u need for resource planning.I have already mentioned pipe dia in my post.42 months duration for pipeline includes duration for engineering , procurement and construction ,testing ,commissioning complete.Time slots for various construction activities are given in my post/querry and these time slots are based on overall masterschedule for the pipeline.I eagerly look forward to hearing from you so that i can make a more accurate resource planning for the project.
Refards
Sanjeev
Member for
21 years 7 monthsRE: EQUIPMENT & MANPOWER PLANNING FOR PIPELINE CONSTRUCTN
Tnaxs Mr.raviraj for the Input.
Mr.Sanjeev, See the following information is useful.
Your Project Scope is 690Km Pipeline - What dia? Say 600-1000 Dia, To be done in 42 months. Keeping 2 months for Commissioning and 20% time for Testing , Repair Retest etc you endup with 960 days. So keeping unit length of pipe as 12m You need to install 60 Peices of pipe per day and to excavate 718m of trench may be around 5000 cum of soil which may require 38-40 Excavators. If the pipe is of 1m dia then each joint root+ fill + cover weld will take 1 welderday so you need 60 welders working.
If you keep an unit of 10welders + 7 Excavators + 3 Cranes then the spread length comes to 120 m/ day per unit.
You may need 10 such units working.
The information you have given is not sufficient to make exact resourcing.
Member for
19 years 1 monthRE: EQUIPMENT & MANPOWER PLANNING FOR PIPELINE CONSTRUCTN
your project is huge, and it is an EPC contract to be done in 42 months? You might need a hell of Planners?...
by the way, i suppose 42 months is just a guess as theres no Engineering yet, and you still dont know the terrain. Planning at this stage is still a guess until you got Engineering data.
Member for
18 years 5 monthsRE: EQUIPMENT & MANPOWER PLANNING FOR PIPELINE CONSTRUCTN
Sanjeev,
I had done 125 km of pipeline project but for pre-insulated GRP pipes.
I had finalized the SPREAD LENGTHS based on the hydrotesting lengths. Please check the work method statement / Quality Control Documents for the same.
Please note that in pipeline construction, you need to do the hydrotest with fresh /potable water. Wastage will lead to heavy cost. Generally, the hydrotest lengths are in kilometers.
For optimum utilisation of manpower and machinary and to finish the project on time, you can split the total line into say 6 or 8 CREWS and each crew will be given a sequence of spreads.
All the crew works can go simultaneously.
Productivity rates for delivery of pipes / excavation / bending / testing to be decided in the initial stages of the project before starting the P3 program itself. e.g.if a crew has 80 km of stretch and daily delivery of pipes is 800m then total days required for delivery of pipes will be 100 days. Consider a cycle time of say 45 days between laying and hydrotesting completion of pipes for a spread. You can ask ur construction manager for this cycle time.
e.g. If the pipe delivery finish date is 01/09/07 and cycle time is 60 calender days, then hydrotesting will finish on 31/10/07
if u need more help, please let me know.
Cheers,
Raviraj A Bhedase
Member for
18 years 5 monthsRE: EQUIPMENT & MANPOWER PLANNING FOR PIPELINE CONSTRUCTN
Sanjeev,
I have done some planning for refinery pipeline, but that was a detail plan. For your level of planning you need a standard and a professional estimator. You will have to find out if the pipeline has been designed and consult that document too.
Ta
ALKA
Member for
18 years 6 monthsRE: EQUIPMENT & MANPOWER PLANNING FOR PIPELINE CONSTRUCTN
Sanjeev,
I have never planned a pipeline before but my view is....
The spread length will depend on many things, such as the length of pipe being delivered, the design of the pipeline and the requirements within the pipe specification.
The distribution of manpower will depend upon many things also, such as the availabilty of resource, the weld specification for the pipework and the type of testing required.
Even though you are currently presuming uniform rock strata, I imagine over 690k the terrain will change quite a lot also and so access for machinery/resource (thus working times) will not be uniform.
I recommend you ask an estimator or cost engineer in your company for assistance.