Is there a generally acceptable lateral movement of a caisson wall parallel to an existing reinforced concrete 10 storey condo building which is 3.5 m distance from the proposed new caisson wall to the nearest existing building footing founding elevation? The new building excavation is about 13 m deep. We want to specify the permissible maximum lateral movement of the new caisson wall. The movement would be measured at the uppermost level of tiebacks (this corresponds approximately with the bottom of the existing building spread footing which is 3.5 m away).
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