Page 140 - Microsoft Word - 20120528 Unesco study

Step 2: Leveling and pre-compaction
The second step is leveling and compaction of the trace. This have to be done prior to the
further steps for a fast processing of the further layers. The extended calculations are given in
table 3.16:

2 PRECOMPACTION OF THE SOIL
Materials (DESCRIPTION): AMOUNT UNIT COSTO COST IN MEXICAN PESOS
Water pipe (not potable) 0,03000 m3 $ 50,00 $ 1,50
COST IN MEXICAN PESOS FOR Materials $ 1,50

Labor (description): AMOUNT UNIT SALARIO COST IN MEXICAN PESOS
Crew No. 1 (1.00 Assistant) wage
Assistant 1,00000 wage $ 294,05 $ 294,05
Specialized foreman (cape) 0,20000 wage $ 949,47 $ 189,89
Minor tools 0,03000 (%)labor $ 483,94 $ 14,52
Factor of safety equipment 0,05000 (%)labor $ 483,94 $ 24,20
addition $ 522,66
EFFICIENCY 400,00000
COST IN MEXICAN PESOS for labor: $ 1,31

Equipment (DESCRIPTION): AMOUNT UNIT RENT COST IN MEXICAN PESOS
Soil Compactor with drum vibratory rammers
CP563C Caterpillar 145-hp and 11,700 tons of 0,01000 hora $ 442,42 $ 4,42
operating weight with 2.13 m wide drum
COST IN MEXICAN PESOS FOR EQUIPMENT $ 4,42

TOTAL COSTS
Direct cost $ 7,23
Indirect 6,47% $ 0,47
Field indirect 4,00% $ 0,29
Subtotal $ 7,98
Funding 0,25% $ 0,02
Subtotal $ 8,00

Utility 10,53% $ 0,84
Additional Charges 0,50% $ 0,04
U N I T A R Y C O S T [M2] $ 8,89
Table 3: Unitary costs step2

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