The Deformation And Mechanical Characteristics Of Multi-Level Reinforced Retaining Wall And Optimization

Reinforced Retaining Wall has a low foundation bearing capacity, simple construction, covering less, low cost, appearance, etc., are widely used in highway engineering, railway engineering, construction, water conservancy and hydropower projects. Domestic previous research of reinforced earth retaining walls are more limited shoulder RSRW embankment RSRW and slant RSRW, but in recent years there multistage reinforced earth retaining wall’s research is relatively small. Lack of understanding of its strength, deformation, mechanical properties, stability, result in retaining certain blindness in the construction, which leads to unnecessary waste and a certain quality of the project risks. In this paper, on the background of a multi-stage Dazhou reinforced earth retaining wall, and through field tests and numerical simulation of the deformation and mechanical characteristics of this class are summarized retaining wall. From the perspective of reducing the horizontal displacement, carrying out optimized design studies for it. In this paper, the main work done as follows:(1) Introduces the principle of reinforced retaining wall, By comparing foreign norms,finding different forms of reinforced earth retaining wall design method, and through on-site testing analysis, receive the deformation and mechanical characteristics of variation, while the measured results potential distribution of fracture surfaces;(2) The use of two-dimensional finite element Plaxis calculated test retaining wall,which gets different construction stages of stress-strain characteristics, pressure distribution and strain tendons, etc.. Comparing with field data analysis, comprehensive resulting deformation and mechanical characteristics of the wall and the distribution of potential failure surface;(3) The use of strength reduction to get the sliding surface and safety factor of different construction stages of a multi-stage retaining wall, and further results the two conditions of unreinforced belt and no panelgluten-free panel to retaining wall the impact factor of safety in the construction of process;(4) As Dazhou reinforced earth retaining wall a prototype, from the perspective of reducing the horizontal displacement, the multi-level set of Reinforced Earth Retaining Wall carry on optimal design through three aspects of the choice of filler, the arrangement of tendons, platform width. In order to provide a theoretical basis to actual project of optimization.