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Coefficients of Working Conditions

Coefficients of working conditions γc1, γc2 are taken from the following table according to the type of soil and ratio of the length and the height of the structure L/H:

Soils

Coefficient γc1

Coefficient γc2 for structures with a rigid structural scheme and L/H

4 and more

1,5 and less

Coarse-grained with sand aggregate and sands, except fine and silty

1.4

1.2

1.4

Fine sands

1.3

1.1

1.3

Fine sands with silt (low-moisture)

1.25

1.0

1.2

Fine sands with silt (saturated)

1.1

1.0

1.2

Clay and coarse with clay aggregate consistency index of soil or aggregate IL 0.25

1.25

1.0

1.1

the same with the 0.25 < IL 0.5

1.2

1.0

1.0

the same with the IL > 0.5

1.1

1.0

1.0

Notes:

1. For buildings with a flexible design scheme, the coefficient γc2 is equal to one.

3. For intermediate L/H values, the coefficient γc2 is determined by interpolation.

4. For loose sands γc1 and γc2 are equal to one

The coefficient of working conditions γc is taken from the following table according to the type of soil/rock:

Soils

Coefficient γc

Sands, except silty

1.0

Silty sands, and clay soils in a stable condition

0.9

Clay soils in the unstabilized state

0.85

Rocks

Non-weathered

1.0

Weathered

0.9

Intensely weathered

0.8

Literature:

SP22.13330.2016.

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