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GGU-UPLIFT: Hydraulic failure safety using global safety factors

The hydraulic heave safety for each layer below the excavation base is determined via a comparison of the soil weights to the flow forces at the respective layer bases.

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  • image-20241024-085306.pngN = hydraulic failure safety of the layer N

  • G'i = buoyant self-weight of layer i

  • SN = flow force of layer N

  • layer 1 (i = 1) is the uppermost layer

The minimum value of all N is the hydraulic failure safety of the system.

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