| The development of traditional SMW(Soil Mixing Wall)method is based on the constraction method of deep-seated mixing wall, whose load and stiffness mostly depends on the reinforced material such as shaped steel, the stiffess of cemented soil only is regarded as safe deposit. Presently SMW method is impoved on for some excavation whose depth is not too deep. In this paper the drawed area of reinforced cemented soil retaining wall is reinforced by shaped steel. This form can get over the shortcoming of low drawed stiffness of cemented soil, and can exert adequately the stiffness of cemented soil and the drawed strength of shaped steel. Consequently the thickness of cemented soil wall may be minished consumedly and the material can be economized. So this method has a well economy benefit.In this paper, the FEM software Plaxis is used to analyse the reinforced cemented soil retaining wall using plane strain assumption ,and the hardening-soil model is employed for the constitutive relationship of soil, and an interaction surface is set not only between the soil and cemented soil retaining wall but also between cemented soil retaining wall and shaped steel. In this paper the displacement of the reining structure and the stress distributing of cemented soil section, the stress change of shaped steel, the interactional relationship between cemented soil and shaped steel are analysed in seven different conditions(different thickness of shaped steel, different position of shaped steel, different length of shaped steel,different strength of cemented soil, different thickness of retaining wall,different length of retaining wall, different strength of soil). |
