Deep Excavation Supporting Engineering without Traditional Support Replacement Condition

Abstract:

With an engineering case, the paper introduced a new support replacement plan when there is no condition for traditional support replacement construction. A row of bored cast-in-place piles are taken as retaining structure, 2 lines of steel concrete inner support in the excavation, 2 rows of deep cement mixing pile outside the piles as water-stop curtain which can prevent silt to get in. It is proved that this support replacement is safe and reliable.