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Study on Quantitative Relation between Displacement Vector Angle and Stability Factor & Its Optimized Design

Author: LiXinYuan
Tutor: HeKeQiang
School: Qingdao Technological University
Course: Geotechnical Engineering
Keywords: Debris landslide Displacement vector angle Skid retaining wall Optimal design Numerical Simulation Zhangjiawan landslide Horoscopes door landslide
CLC: P642.22
Type: Master's thesis
Year: 2010
Downloads: 74
Quote: 0
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Abstract


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, it is widely distributed, large-scale, sudden and serious dangers. To do this, how that type of landslide scientific prediction and effective prevention and treatment has far-reaching theoretical significance and enormous economic benefits. In this paper, the National Natural Science Foundation of China \: 40872184) \displacement information and its variation, the displacement vector angle as horizontal, vertical displacement of the kinetic parameters, focus on the spatial and temporal characteristics of the slope displacement vector angle, a more in-depth study of the quantitative relationship of the displacement vector angle stability factor. Research and analysis in the process of the side slope displacement information and reflect the change in the law, the form of the displacement vector angle slope retaining wall stability against sliding variation, focusing on the set of retaining walls in different skid displacement vector angle theory of value and significance in the use of slope engineering, some of the results of theoretical significance and practical value, and are summarized as follows: 1) the basic characteristics of landslide displacement dynamics characterized by analysis of the accumulation layer, draw the displacement vector angular displacement kinetic parameters that describe the steady state and evolution stage, and has a displacement rate variation and physical significance. 2) accumulation layer the slope displacement vector angle is posed by the different nature of displacement displacement vector angle. Different deformation stage has a different variation, these changes in the law in line with the characteristics of self-organization, with the slope to the instability of the development of the displacement vector angle from disorder to an orderly, turn and from the orderly steering mutation. 3) the size and the variation of the angle of slope displacement vector is suffered by the slope of the stress state and its evolutionary stage. Pro slip displacement vector angle change drastically, this feature can be used as a criterion to evaluate the slope stability. Accordingly, the slope of the displacement vector angle changes before the overall instability are relatively stable; sudden increase in slope destabilization of the displacement vector angle changes. 4) through the analysis of the of debris landslide characteristics and the kinetics of the displacement vector angle, we can see the displacement vector angle mutations, the greater the reduction factor, the validity period of the project is a long time, the treatment effect is more ideal. 5) using the finite element strength fold subtraction calculation retaining structure internal force, both structural and geotechnical media together to consider supporting the relationship, they can directly calculate the structure of the internal forces, has great advantages and application prospects.

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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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