Page 212 - Estimators Piping Man Hour Manual
P. 212

Section Five—UNDERGROUND PIPING          195






                             Hand Shovel       Bulldoze          Tamped
             Soil              Placed           Placed           6" Layers
           Light                0.60             0.04              ...
           Medium               0.80             0.07              1.00

           Heavy                1.00             0.10              i.io


      Man  hours  for  hand  shoveling  and  tamping  is  that of common labor.  Man hours for  bulldozer
     placing  is  that of operating  engineer.
      All  man  hours  are  based on backfill materials being  located  within shoveling distance of exca-
      vated area.


       UNDERGROUND            ISO   LBS.   B. & S.   CAST    IRON    PIPE
                                 LABOR m MAN  HOURS

            MAN  HOURS PER  FOOT                    PER  MAKE-ON
                                                 150 Lb. B & S Fittings
            Size          Pipe Set    Lead  & Mech.   Cement        Sulphur
           Inches         &  Align        Joint        Joint         Joint
            4              0.09           0.50         0.35          0,25
            6              0.11           0.57         0.37          0.29
            8              0.14           0.70         0.50          0,35
            10             0.17           0.85         0.60          0.43
            12             0.24           1.23         0.95          0.62
            14             0.35           1.78         1.25          0.89

            16             0.45           2.28         1.60          1.14
             18            0.53           2.68         1.89          1.34
            20             0.63           3.19         2.24          1.59
            24             0.79           4.00         2.81          2.00

      Pipe man hours  includes handle, haul, set  and align  in trench.
      Fitting  man hours  includes  one make-on.
      Man hours must be added for  excavation.  See respective pages  for this charge.
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