Construction Technology of Composite Water-stop Curtain of Cast-in-place Piles and Jetted Piles in Foundation Pits in the High Groundwater Level Area Near the Reservoir
In order to solve the problem of foundation pit construction in the high groundwater level area near the lake,this paper takes the ex-pansion and renovation project of Shenzhen East Lake Water plant as an example,and puts forward a construction technology of the composite water curtain of cast-in-place pile and rotary jet pile.This technology uses the high stiffness of the cast-in-place pile and the water insulation effect of the rotary jet pile to achieve the stability of the foundation pit,seepage prevention and flexibility of the plane layout,shorten the con-struction period,reduce the impact on the surrounding environment,improve the working space of the site and the foundation pit,and ensure the construction safety.
Cast-in-place pileJetted pileComposite water-stop curtainHigh groundwater level area near the reservoirStability