Design Method And Stability Analysis Of Pre-stressed Anchor Supporting Structure With Beam And Column

There are kinds of supporting structure, the costs of traditional supporting methods such as gravity retaining wall, counterweight retaining wall, cantilever retaining wall, buttressed retaining wall and lump stone are high and the area occupied is large. The pre-stressed anchor supporting structure with beam and column is a type of light supporting structure. This structure maintains steady slope through art-pull force of anchor. The pre-stressed anchor supporting structure with beam and column is analyzed theoretical in this paper, combined with theoretical study and design of such supporting structure, which is one of the plan projects of construction science and technology in Hunan province. The topic provides engineering aiming with practical and concise computation method, and also provides the advice for structure with proper theory foundation and schemes to some extent. The main contents of this paper is divided into the below pars.1. The usual methods for earth pressure calculation are summarized. This paper brings forward a displacement earth pressure model. That is the lateral earth pressure on the supporting structure change with the variation of the supporting structure's displacement.2. Based on the Mindlin's solution of displacement, the distributing expressions of the shear stress and the axial force in anchorage are derived, and the mechanical characteristic of anchorage is analyzed, which indicates the mechanics of the support more deeply. The method of confirming the length of anchorage is proposed.3. The calculating elements and the calculating model of rib-column, rib-beam and retaining plate of the supporting structure are proposed in this paper. In the pre-stressed anchor supporting structure with beam and column, anchor, supporting structure and soil work jointly, therefore in this paper, rib-column and rib- beam are used models of elastic foundation beams, the solving method of rib-column and rib- beam are given out.4. The program of the design and calculation of the pre-stressed anchor supporting structure with beam and column is written with the language Visual Basic. If we know the relevant parameters and soil parameters, using the program can obtain the internal forces of beam-column, the diameters and length of anchors. Two projects example are introduced, and they indicate the calculating model is rational, the design...