How do you calculate excavation area?

Add the length at the top of the excavation to the length at the bottom of the excavation and divide by 2 to get the average length. Do the same for the width. Multiply the average length times the average width times the average depth and divide by 27.

How do you calculate excavation volume?

To calculate the total excavated volume of a project, the entire project is divided into several horizontal layers. The area of a typical excavated cross-section in a horizontal layer is calculated and multiplied by the thickness of the layer. Thus, the excavated volume of this layer is obtained.

How do you calculate earthwork?

The volume of earthwork between sections is obtained by taking the average of the end areas at each station in square feet multiplied by the distance between sections in feet and dividing by 27 to obtain the volume in cubic yards.

What is the formula of volume?

Whereas the basic formula for the area of a rectangular shape is length × width, the basic formula for volume is length × width × height.

What is the equation of earthwork in excavation?

Example 2 (Both Cutting and Filling) :

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Summary of Various Methods
Methods Methods / Formula
Average Method Volume=Depth of cutting/filling* area
Block Method Volume=Sum of (Depth of cutting/filling* area of each block)
Section Method Area to be found out using Trapezoidal Method Nett area Method Volume = Lx1/2(A1+ A2)

What is mid section formula?

In this formula, the mean depth is to be calculated. First by avergaing the depths of two consecutive sections. From the mean-depth the area of mid-section is to be worked out and volume of arthwork to be compted by multiplying the area of mid-secion by the distance between the two original sections.

How is BCY calculated?

To convert soil quantity from CCY to BCY, multiply the CCY value by the factor in the BCY column. To determine the volume of dirt you will have to haul to another location on the site or off the site, you would multiply the cubic yard by a Swell Factor, which in this case would be 1.25.

How do you calculate cost of excavation?

of days required for 10m3 excavation = 10/242.4242 = 0.04125 days. Likewise, based on the capacity of other equipment, labors etc., their cost is calculated. Contractors profit is also added to the total cost of labors and machineries. Then grand total gives the rate of excavation per 10m3 of soil excavation.

What is formula of mass?

Mass Formulas – Difference Between Mass and Weight

Mass is a quantity that gives an idea about how much matter is present in an object. It is a quantitative measure of inertia. So acceleration is inversely proportional to inertia. The relation between force and mass is given by: F = ma or m = F/m.

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What is area formula?

The formula is: Area = w × h. w = width. h = height.

What is the rate of earthwork excavation?

Example of Rate Analysis of Excavation in Earthwork

Sr No. Description Rate
1 Backhoe Excavator ( Per Day Excator 200 Cu.m.) 7000.00
2 Tractor/Dumper 2000.00
B Labour for Dressing
1 Mason For Leveling 700.00

What is the difference between earthwork and excavation?

 This earth work may be either earth excavation or earth filling or Some times both will get according to the desired shape and level. …  Basically the volume of earthwork is computed from length, breadth, and depth of excavation or filling.

How do you calculate backfill and excavation?

How to Calculate Backfill

  1. Calculate the volume of the space to be filled. …
  2. Calculate the cubic yardage of the same trench. …
  3. Next you might need to fill a round hole that is 10 feet in diameter and 5 feet deep. …
  4. Estimate the number of truckloads that will be required to fill these two holes with backfill.
Special equipment and operation