Soft Ground And The Common Role Of The Raft Foundation Analysis

The development of economy has increased the course of citification. With the construction of city, amounts of raft foundations on soft soil have carried out, consequently, it has practice significance to probe the property and condition of raft on soft soil In this paper, the auther improved the elastic-plastic model by leading into the time-dependent behaviors of soft clay, advanced the elastic vise plastic model that is suitable for soft clay and applied it to the finite element program of interactive analysis for a raft on soft clay ground. Meanwhile, the auther proved that the resuit form the present model is in better agreement with the Dancuan-chang's is e- v model by analyzing the consolidation deformation and ground reforce for a constructure. The present model can also be used to predict the post-construction settlement of constructure with a soft-soil ground affectivelyIn this paper, the auther introduced the theory of interactive analysis relatively systemical, including the design and caculation menthod of rafu the theory of foundation model and the realizing process of finite element, meanwhile, by means of real example, the auther advanced that method of dealing ground ought to product tangible results while designing the scheme for the raft foundation on soft clay. All these provided the design basis for the rigidity of the superstucture and the foundation and reducing the Cost of depth-lenth pile in the deep and thick compass stratume. This paper enrich the therory of interactive analysis and can be predicted to bring to a good enconomic results.