The free-haul limit is
the specified distance the excavated material is hauled without additional
.
compensation
. Unless otherwise provided in the Contract Documents, the free-haul limit is 2,000 feet.
What is meant by free haul?
The distance every cubic yard is entitled to be moved without an additional charge for haul
.
What is haul and over haul?
Definitions: Overhaul: Is the number of cubic meters (yards) of overhauled material multiplied by the overhaul distance, this distance is measured between the center of gravity of cut and fill (i.e. m 3 *station or yd 3 *mile).
Haul = volume of earthwork * distance moved
.
Limit of Economic Haul
(L.E.H.)
What is a haul in surveying?
Haul: A haul refers to
the transportation of your project's excavated materials
. The haul includes the movement of material from the position where you excavated it to the disposal area or a specified location.
What is free haul diagram?
A mass haul diagram consists of two objects: a mass haul line, and a mass haul view. The mass haul line represents the free haul and overhaul volumes in cut and fill conditions along an alignment. The mass haul view is the grid on which the mass haul line is drawn.
What is a free haul distance?
The free-haul limit is the specified distance the excavated material is hauled without additional. compensation. Unless otherwise provided in the Contract Documents, the free-haul limit is
2,000 feet
.
How is average haul calculated?
This is also know as authorized haul. diagram. Average haul is the area of the
mass diagram representing the number of cubic yard stations of haul between balance points divided by the ordinate of the mass which the yardage is hauled
.
What is economical haul?
The limit of economic haul is reached when
the cost of haul and the cost of excavation become equal
. Beyond that point it is cheaper to waste the cut from one place and to fill the adjacent hollow with material taken from a nearby borrow pit.
How do you calculate free haul volume?
From grade points, a segment the length of the free haul distance, which is parallel to the balance line, is dropped so that the ends of the segment just touch the mass haul line .
The area enclosed within the segment and the mass haul line
represents the free haul volume.
What are advantages mass haul diagram?
The use of mass haul diagrams helps
designers and contractors understand where gross material movements occur and as key indicators used to compare the economies of alternative designs
. … They are used to analyze the following aspects of the design: Distance over which the cut and fill will balance.
How do you calculate earthwork?
In this method Sections are drawn for Each Line of Value. Area of Cutting and Filling is found out for each Section with Trapezoidal Method or Nett Area Calculation Method. Then volume is determined by multiplying Average Area with Distance between Sections.
What is average hauling distance?
Distribution Analysis of Earthwork Terminologies Haul Distance: distance from point of excavation to point where the material is to be tipped Average Haul Distance is
the distance from the centre of gravity of the excavation to the centre of gravity of the tip
Free-haul Distance: is the distance (usually specified …
What is meant by haul distance?
The distance measured along the center line or most direct practical route between the center of the mass of excavation and the center of
mass of the fill as finally placed. It is the distance material is moved.
Why must earthwork volumes be calculated?
An accurate estimate of the earthwork volumes and areas is essential for a contractor to
both submit an accurate bid
that has the potential to win a contract and to properly manage the resources assigned to the project so that he shows a profit. …
How a mass haul diagram is used to calculate the earthwork quantities?
Mass diagrams (or mass-haul diagrams) are plots of the
cumulative volumes of cut
and fill along an alignment. … The most economical way to handle the distribution of earthwork volumes can be determined from the diagram. The rising curve on the mass diagram indicates excavation and a descending curve indicates embankment.
How do you make a mass haul diagram?
- Select a material list.
- Select a material to display as mass haul line (Total Volume, Total Cut Volume, Total Fill Volume, Total Unusable Volume, and any other material associated with the material list).
- Specify a mass haul line style.
