Mechanical Characteristics Of Assemblable Greening Retaining Wall For Cutting Slope

In the new era of advocating ecological environmental protection,energy saving and consumption reduction,traditional masonry retaining wall is increasingly difficult to meet the requirements of high starting point,high quality and high standard,the assemblable green retaining wall based on the national policy orientation and development concept is attracting more and more attention.As a new type of retaining structure,assemblable green retaining wall has many advantages over traditional cast-in-situ retaining wall,such as rapid construction,controllable quality and ecological protection.It has a good application prospect and will be one of the development directions of slope retaining structure in the future.Applicability is the key point of retaining structure development,which requires the structure to be able to adapt to the engineering geological conditions and unique load conditions of the site.At present,there are a few attempts to use assemblable retaining wall in the field of slope engineering in our country,but there are few applications and few reports on its applicability.In particular,there is still a lack of relevant research on structural optimization design for cutting slope engineering.Aiming at the problem of cutting slope reinforcement,this thesis studies the stress characteristics and reinforcement effect of the new structure in the slope reinforcement,and puts forward the reasonable structure size and applicable conditions,which provides the theoretical basis for its application in the engineering of cutting slope reinforcement.(1)in view of the current research on assemblable green retaining wall,a detailed survey is conducted to summarize the existing achievements in the assembly mode,structural form and engineering application of assemblable retaining wall,and the structural form and structural requirements of assemblable retaining wall applicable to the cutting slope are proposed.(2)based on the form of cantilever retaining wall structure,the structural design and calculation method of assemblable green retaining wall is studied for the cutting slope,and the calculation method of heavy weight conversion of assemblable retaining wall was proposed.The weight of assemblable retaining wall block,planting soil and constructional column was taken as the basis to calculate the heavy weight conversion of the wall.(3)using FLAC3 D numerical simulation software as the platform,an assembled greening retaining wall model was established to comprehensively analyze the stress performance and stress displacement characteristics of the wall under natural and earthquake working conditions.By studying the influence of toe plate width,tenon position and bolt parameters on the structural deformation and internal force characteristics of assemblable green retaining wall,the reasonable design parameters suitable for cutting slope engineering under natural and seismic working conditions are put forward.(4)selected typical work sites for application design and numerical simulation research and analysis,to verify the rationality and effectiveness of the structural design parameters of assemblable green retaining wall proposed in this paper.Based on the cutting slope project of the no.3 sewage treatment plant in Linshui industrial park of Guang 'an city,the numerical simulation of the reinforcement effect of assemblable green retaining wall supporting the cutting slope shows that it has good reinforcement effect and can provide reference for similar cutting slope engineering design in the future.