45 degree zone of influence

[JL_O01]

Hi There,
It might seem very basic, but quite struggling at the moment. I'd like to know how to define whether an item ( cable duct) adjacent to a pad foundation is within the 45 degree zone of influence of that particular pad. I have no loads, only distances. Is there a formula to find out ?

Pad area ( 500 mm2) 2 m deep
The cable pit is 1.7 m away from the pad and go 2.00 deep. How can I know whether that pit is within the zone of influence.

 

[jayrod12]

If they're both at the same depth, i.e. 2m then it is not within the zone of influence. If the duct is lower than the footing, then it may be. Put a sketch together showing the pad and the duct including all pertinent dimensions and elevations. The answer will become clear.

 

[BAretired]

If the pad area is 500 mm² and is square, it has a side dimension of 22 mm which does not seem reasonable. I assume you mean the pad is 500 x 500 mm².

What is the dimension of the cable pit? Is 1.7 m the clear dimension between the two or the center to center dimension?

BA