Application of Soil Nailing Walls in Open Cutting Works for Water-Intaking System of Caofeidian Power Plant of CR Power

The supporting technique of prestressed anchor rods for soil nailing walls was used for the open cutting works for the water-intaking system for Caofeidian Power Plant,CR Power.The cutting depth is about 15.6 m,and 18.2 m is the deepest cutting by the seaside for this technique.Thanks to proper supporting measures,the progress of construction was 60 days earlier than using retaining-wall supporting system,which reduces direct cost by 10 million Yuan.It can widely used in future deep excavation constructions.