Secant Walls
A secant wall is an excavation support system constructed by vertically drilled holes caissons in an interlocking fashion.
A secant wall is an excavation support system constructed by vertically drilled holes caissons in an interlocking fashion. A sequence of soldier piles and caisson fillers make up the shoring wall. The piles are reinforced with steel beams and fillers are left unreinforced and filled with low strength concrete. Depending on the excavation depth requirements, piles can be cantilevered or braced with walers, rakers, struts and/or tiebacks. HC Matcon can provide a Design Build solution utilizing expert and focused engineering for cost effective design.
ADVANTAGES OF CAISSON WALLS
- Rigid shoring system for when lateral force has increased loading.
- Eliminates ground loss. Ideal for shoring adjacent to existing buildings and other sensitive infrastructure.
- Can be installed in poor soils and below the water table.
- Improved control of groundwater. Can be designed as a cut-off wall to retain water and reduce project dewatering requirements