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The Parameter of Displacement Vector Angle and Its Using in Optimization Design on the Administering Works of Debris Slope

Author: LiJing
Tutor: HeKeQiang
School: Qingdao Technological University
Course: Geological Engineering
Keywords: Debris landslide The slope displacement vector angle Anti-slide pile Pile Pile spacing Zhangjiawan landslide ANSYS Numerical Simulation
CLC: P642.22
Type: Master's thesis
Year: 2008
Downloads: 37
Quote: 0
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Abstract


Slope refers to the surface all lateral free surface geological body has a certain height and slope, is widely distributed in a crust surface landforms form and a geological engineering, human survival and engineering activities is the most common and the most basic the natural environment. Slope failure and unstability serious threat to the production of human life. In the form of slope failure, landslide is the most widely distributed and most damaging. Debris landslide occurred in the Quaternary and modern loose landslide accumulation layer, which includes all soil landslide, all kinds of debris landslides in mountain areas formed by tectonic unloading, weathered secondary role of the various types of loose crushing landslide of rock and soil, is widely distributed in China. In this paper, the National Natural Science Foundation project \(item number: 40672182) as the background to the Three Gorges Reservoir Zhangjiawan landslide instance, in large finite element program ANSYS numerical simulation based on the full research process side slope displacement information variation, depth to explore the mechanism of the mechanical displacement vector angle variation reflects the form of the displacement vector angle slope in different piles bit into the stability of the anti-slide pile, focuses on the theory of displacement vector angle in slope engineering the use of the value and significance of some results of theoretical significance and practical value, and are summarized as follows: 1, the use of the elastoplastic mechanical and landslide basic kinetic theory, the dynamical evolution of behavior and the law of slope failure analysis and research and found that under different load conditions, the amount of displacement or displacement rate showing the fluctuation state, So, in the study of the stability of the slope system, rely solely on the amount of displacement or the rate of displacement is not enough. This introduces another of the displacement vector field is irreplaceable displacement parameters - slope displacement vector angle, it is a completely different amount of displacement or displacement rate kinetic parameters of the physical meaning of slope deformation and instability of the process has. 2, by analyzing the the slope displacement vector angle mechanical mechanism found the the slope displacement vector angle reflects the change of the direction of the force is the slope, this slope can be determined in the destruction of the evolution in the force conditions. The change of the the slope displacement vector angle reflects the the slope constant evolution slope stress re-distribution of the displacement adjustment. 3 Numerical Simulation Zhangjiawan slope V No. slope of the stress-strain accumulation layer landslide reinforcement trends in different parts of the displacement vector angle, which is calculated on the basis of the simulation numerical solution V, slope treatment project in Zhangjiawan landslide Pile. 4, through the analysis of the mechanism of soil arching effect, the rational use of the physical and mechanical properties of soil between piles, design optimal pile spacing.

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CLC: > Astronomy,Earth Sciences > Geology > Hydrogeology and Engineering Geology > Engineering Geology > The geological and engineering geological > Landslide
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