Hello Chris,
Thank you for your prompt reply.
The purpose of my post from beginning was to calculate the extra cut volume on top of total cut volume(=14,935.86 m3) that we need to do on site for Topsoil.
Topsoil is the cutting whole site regardless if it is cut or fill. Topsoil depth is 0.2m. Assume we need to export whole topsoil from site.
My method to calculate extra volume for topsoil is as below. Please advise if it is not correct.
To calculate topsoil volume in fill area, I have to multiply 2D total area of fill (=35,915.18) * 0.2m = 7,183.036 m3
So, for the fill area, first we need to cut 7,183.036 m3 which is topsoil and then fill 7,183.036 m3+25635.09m3 = 32,818.126 m3. So, 32818.126 m3 is the total volume of fill without considering any inflation or compaction ratio.
With cut area, the total volume of topsoil is 28,818.04*0.2m = 5,763.608 m3. But majority of this volume is already within total cut volume(=14,935.86 m3). No need to add anything for cut area >0.2m depth cut.
But, For the cut area <=0.2m, Am I right to say that the total topsoil volume is 8872.55*0.2 = 1,774.51 m3?
If yes, this volume (assuming whole area has been cut for 0.2m not less) is less than table volume(=4,786.70m3)!! So, something is wrong. How can I calculate the extra cut volume for topsoil for cut depth<=0.2m?
Regardless of my above assumption, could you please help me to find what I need to add to total cut volume (=14,935.86 m3) to make sure that Topsoil volume is allowed for cut depth<=0.2m?
Best regards,
K1