Fill Gravity Retaining Walls Force And Deformation Characteristics Analysis

Gravity retaining wall has the advantages of simple structure, convenientconstruction, and it is also one of the most widely used types of retaining wallstructure in our country, especially in water conservancy, highway, railway andother construction projects. In my article, firstly, it starts with the earth pressure ofretaining walls. It introduces the various types of applications in engineering and theconstruction features of different kinds of gravity retaining walls, as well as the forcecharacteristics and the problems which need to be attention in the construction process.This chapter also focuses on the category of earth pressure and Coulomb classicalearth pressure theory which is used more often now.In the article, it analyzes the destructive mechanism through now existingtheories under different working conditions for retaining wall, such as the Tdisplacement mode, the RB displacement and the RBT displacement mode. At thesame time, we derive some formulas for calculating the horizontal component of theearth pressure of the soil mass, the resultant force of earth pressure force, the actionpoint of the resultant force of earth pressure force and the earth pressure torque behindthe retaining wall under different displacement modes. In addition, we also analyzesthe impact of the resultant moment on the stability of a retaining wall.In the article, I set a gravity retaining wall size based on the existing norms, andcheck the against sliding stability, the against overturning stability and the foundationbearing capacity by Li-cheng retaining walls software. Then we model in this size ofretaining wall through MIDAS-GTS software, make a comparative analysis of varioussoil constitutive models. Finally, the soil is determined, the Mohr-Coulomb (MC)model which is suitable for the soil is selected, and the relevant parameters of theretaining wall is also determined.In the article, I analyze the displacement, stress, strain and so on of thestructural system by MIDAS-GTS software. Ultimately we draw the followingconclusions:(1) The horizontal displacement of the wall heel is the maximum in the gravityretaining wall, the horizontal displacement of the top of the wall is the minimum, andthe amount of horizontal displacement along the wall back from high place to lowplace is gradually increasing. At the same time, the vertical displacement of the wallheel is the maximum, the vertical displacement of the wall toe is the minimum, and the amount of vertical displacement from the wall toe to the wall heel is graduallyincreasing.(2) In the aspect of the stress, the stress concentration will occur in the wall heeland wall toe, and destructions will happen more easily in the two locations.Simultaneously, we find a strip area where its shear stress is comparatively largealong the longitudinal direction in upper position of the wall toe of the retaining wall,then we discover this region is also prone to damage by rigorous analysis. We get asimilar conclusion as above through strain analysis basically. Finally, through thecomparison between the result of the stability checking of retaining walls by Li-chengsoftware and the analysis result of the MIDAS-GTS software, we find the twoconclusions are basically consistent. Therefore, it verify the correctness of theMIDAS-GTS software.