productivity analysis of burried/underground cable laying activity
TRANSCRIPT
Productivity Analysis of Cable Laying
Productivity Analysis of Cable LayingPackage 2 / Sector 10
SEC 10 LAYOUT
SECTOR 10 WORK STATUSTotal Scope: 125 kms (as per schedule)Actual Completion: 122.895 kms (as per site condition)
Total No. of Plots: 484 Nos
Total No. of Roads: 44 Nos (5294 mtrs)Road Handed over for Civil works: 5294 mtrs
CABLE LAYINGActivity Inclusive of:Marking Plots Chainage / TrenchCivil clearances, if anyExcavation - Cable TrenchDewatering Trench Logistics Cable Drum ShiftingPre testing Meggering of cable before layingRoad Crossing - Hume Pipe layingPlot crossing - DWC pipe layingCable TaggingTesting & endcap fixing
Cable Laying Duration: 74 days
Labour Engaged for Cable Laying works
Overall Productivity of Sector 10 Cable laying works
Size Wise Actual Laid length
Executed Work Cost Cable
Size Wise % Distribution Sector 10
Cost Analysis LOGISTICSTrailer: Rs. 5000 / day (Rental)No. of trips a day : 3 Cost of per trip: 5000/3 = Rs. 1666.7Drums shifted 5*500 = 2500 mtrsPer mtr cost of trailer engaged = 2500/1666.7 = Rs. 1.5 / mtr
Hydra: 8 Hrs X 1200 / hr = Rs. 9600 / dayDrum shifted 15 * 500 = 7500 mtrsPer mtr cost of Hydra engaged = 7500/9600 = Rs. 0.80 / mtr
MANPOWER / OUTSOURCE
Weighted Avg. per mtr cost = Rs. 15 Outsource = 48% of Rs. 15 for labors = Rs. 7.2 / mtr
Cost (Logistics) / mtr 3.00Outsource / manpower 7.2Total Cost 10.20 Cost of Cable Laying 15.00 Margin32%
AGENCY1: PREMIER PLANT & ENGG. LTD.Total cable laid (in Kms): 17.538Total Mandays: 453
WEEK WISE CABLE LAYING PROGRESS
WEEK WISE LABOUR ENGAGED
PRODUCTIVITYTotal Kms laid: 17.538Total Mandays engaged: 453
Productivity of each labor: 17.538/453 = 0.039 (kms)In mtrs = 0.039 x 1000= 39 (mtrs) / day (avg.)
Therefore: productivity a of a labor x no. of labor engaged
Note: Above calculation is done for 8 hr/day (std. working hrs)
AGENCY 2: N. GOVINDRAJ
WEEK WISE CABLE LAYING PROGRESS
WEEK WISE LABOR ENGAGED
PRODUCTIVITYTotal Kms laid: 78.316Total Mandays engaged: 836
Productivity of each labor: 78.316 / 836 = 0.094 (kms)In mtrs = 0.094 x 1000= 94 (mtrs) / day (avg.)
Therefore: productivity a of a labor x no. of labor engaged
Note: Above calculation is done for 8 hr/day (std. working hrs)
AGENCY 3: RAMESHWAR SINGH
WEEK WISE CABLE LAYING PROGRESS
WEEK WISE LABOR ENGAGED
PRODUCTIVITYTotal Kms laid: 26.946Total Mandays engaged: 253
Productivity of each labor: 26.946 / 253 = 0.107 (kms)In mtrs = 0.107 x 1000= 107 (mtrs) / day (avg.)
Therefore: productivity a of a labor x no. of labor engaged
Note: Above calculation is done for 8 hr/day (std. working hrs)
Constraint'sManpower : Holi festival (unavailability of labour in 2nd week of march for 7 10 days)
Equipment: Tight schedule of Hydra, for shifting cable drums
Turntable UtilizationFor sector 10:
Total cable laid: 123 kmsDuration: 74 days
Avg. laying progress per day: 123 / 74 = 1.66 kmsFor a week = 1.66 x 7 = 11.63 kms (avg.)
Thats equivalent to turntable efficiency
Avg. Turntable Efficiency
12.50 kms (avg.)/ week
Agency AnalysisM/s. Premier Plant & Engg. Ltd.Unable to adapt the site condition (stringent in nature)Unable to mobilize the manpowerUnskilled supervisor Unable to engage Hydra Time: unavailability of supervisors at site in time
Agency AnalysisM/s. N. GovindrajFlexible and adaptive as per site condition Able to mobilize the materials (owned pick up van)Able to engage hydraSupervisor 4 nos Easy to manage / easy to line up activity, hard to maintain reconciliation Reliable to work with itPerfect Bell curve for mobilizing manpower
Agency AnalysisM/s. Rameshwar SinghEngage low manpower Only One supervisor hence easy for reconciliation, delay in managing site.Less reliable as compared to N. GovindrajLost interest at the end of the project
References: Daily Labor report, Time office
THANK YOU