Mumbai University > CIVIL > Sem 7 > Quantity survey Estimation and valuation

Marks: 5 M

Year: Dec 2014, Dec 2013, May 2013, Dec 2012

Mass Haul Diagram

1. This is a curve representing cumulative volume of earthwork at any point on curve, the manner which earth to be removed.
2. It is necessary to plan movement of excavated soil of work site from cuts to fill so that haul distance be minimum to reduce the cost of earthwork.
3. The mass haul diagram helps to determine the economy in better way.

4. Construction of Mass Haul Diagram:

   a. Workout accumulated volume as algebraic sum volume of earth work at each station/chainage.

   b. Draw a base line and mark the stations with suitable scale.

   c. From every station draw vertical line and mark the suitable scale for earth volume.

   d. On the ordinates of each station mark respective scaled cumulative heights. Thus the height of an ordinate at any point on the base line represents algebraic sum of volume of earthwork.

   e. Join all the points by smooth curve and this curve is known as Mass Haul Diagram.

   f. From curve, workout quantities of earthwork such as earth to be taken away from site or earth to be brought at site.