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GEO5

Geotechnical software

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Concentrated surcharge

The concentrated load (resultant F due to surface or concentrated load – see figure) is transformed into a line load with a limited length. If the width of surface loading b is smaller than the distance a from the back of wall (see figure) the alternate line loading f having length 1+2(a+b) receives the form: 

where: F - resultant due to surface or concentrated load
a - distance of loading from the back of wall
l - length of load
b - width of surface loading

If the width b of surface loading is greater than the distance a from the back of wall (see figure) the alternate line loading f having length 1+2(a+b) and width (a+b) reads:

where: F - resultant due to surface or concentrated load
a - distance of loading from the back of wall
l - length of load
b - width of surface loading

Alternate loading for calculation of increment of active earth pressureAlternate loading for calculation of increment of active earth pressure

For non-homogeneous soils the program proceeds as follows.

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