Analysis On The Deformation And Stability Of The Large-scale Piling Mountain

The Danshan piling mountain of Sports Exhibition Center in Zhenjiang city is the largest artificial piling mountains engineering by far today,which ground area is 12.20hm2,the maximum completed elevation of the hill is 70 m,and The maximum height difference is 52 m.Foundation for the artificial mountain is a waste open-pit mining and has a distribution of large range of the soft soils.The filling soils are from the soils of foundation pit excavation.This study pays mainly attention to the design optimization,soft soil consolidation settlement and artificial mountains stability of research.The main achievements include:1.By laboratory experiments,the maximum dry density,optimum moisture content,compression,rheology and strength characteristics were analyzed and get the correspondence between the compaction degree and deformation,strength of the fillings.2.The development of the groundwater levels under different rainfall intensity conditions caused by artificial mountain are simulated by the finite element method.The influences of the groundwater on the stability of the mountain is studied.3.The stability of the mountain is calculated by the limit equilibrium method on the base of the engineering geology investigation and tests.The sensitivity problems of the filling is talked about.4.Overall deformation characteristics of the artificial mountain is simulated by the numerical simulation method,the stress and seepage fields are calculated,and the coupling calculation is carried out at the same time.The research results of the issue will inform the demonstration and guidance on the planning and implementation of similar projects in the future.