Design and Application of Pile-anchor Support Structure for Deep Foundation Pit in Hospital
Taking the deep foundation pit project of a hospital as an example,this paper explores the design key points and application methods of the combined support structure of concrete cast-in pile and prestressed anchor cable.F-SPW software is used to simulate and check the parameters such as anti-overturning stability of foundation pit and embedment depth of supporting pile.The design scheme is optimized according to the calculation results.In the construction of concrete cast-in-place pile,the management of drilling and clearing,concrete pouring and steel cage placement should be emphasized.In the construction of prestressed anchor cable,the control of making and installing,tensioning and locking of anchor cable should be emphasized.By adopting fine management,the stability and bearing capacity of pile-anchor support structure can meet the requirements of deep foundation pit construction.
deep foundation pitpile-anchor supportprestressed anchor cableconcrete pile