5、stituteofTechnologyAbstractThedesignforthe JinlingInstituteofTechnology University ScienceandTechnologyParkproject braced retainingstructuredesign. The foundationpit isexpectedforthe two layerofthebasement, thesizeoffirstexcavationis110m×100m, constructionelevation±0
6、.000misequivalenttotheabsoluteelevation+18.000m. thefirstlayerof thebasement topelevationis-5m,theexcavationdepth isabout6m.Consideringthe deepexcavation, soilandwaterenvironmentproblems,constructionsiteconditionsandthe border conditionof theconstructionseason, the r
7、owofpilesandreinforcedconcretesupporting composite retainingstructures. Intheengineering field, thefield teamswith thesupportingpiles, construction unitshave aseriesofconstructionmethodsand choosetheirown system, maybe preformed, oron-site drill and cleanup,andthenus
8、ethe reasonable gradation concrete pouring, to form stable after follow-up ofotheroperations, forthe weak side forceismorecomplex a