Discussion On Depth Of Diaphragm Wall In Top-Down Construction

In excavation engineering, the depth of retaining wall is generally determined by the analysis of anti-heaving stability. The checking formulas of current codes, arc-slippage method, is suited to general conditions, especially in the condition of flexible retaining wall. Considering the characteristics of top-down construction and other advantage factors, a so-called modified arc-slippage method is proposed for rigid retaining wall. And with the analysis of engineering instance, the depth of diaphragm wall in top-down construction could be optimized.