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GEO5

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Heave Check according to Chinese Standard

This verification depends on the depth of confined aquifer D and height of its confined water level hw to which the water would rise if it was not restricted by aquifuge from above.

Verification is done by using a safety factor approach and follows formulas:

where:

SFh

-

safety factor of stability of the soil against heave

D

-

Distance between the top of the confined aquifer and the bottom of foundation pit

γ

-

Unit weight of the soil layer between the top of confined aquifer and the bottom of foundation pit

hw

-

Pressure head from the top of confined aquifer

γw

-

Unit weight of water

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