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عمق مستعد برآمدگی
The depth of potential heave can be computed in the same manner as in Example 8.1, but using the appropriate unit weight for the fill.
The depth of potential heave will be the same as for Example 10.1.
The depth of potential heave, zp, is computed by equating the overburden stress to the constant volume swelling pressure.
The design active zone is considered to be equal to the depth of potential heave.
If a stable nonexpansive stratum or the depth of potential heave exists at a shallow depth, the pier may be designed as a rigid member anchored sufficiently deep in that stratum so as to prevent movement.
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