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Stability Analysis and Reinforcement complex rocky slope mine

Author: LiZuoTao
Tutor: SongXiuGuang
School: Shandong University
Course: Hydraulic Engineering
Keywords: open-pit slope stability analysis limiting equilibrium method numerical simulation slope treatment
CLC: TD854.6
Type: Master's thesis
Year: 2011
Downloads: 104
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Abstract


The safety analysis of slope engineering is a hot researehing spot of the geotechnical engineering field at home and abroad. The geologic condition of slope unstability is very complicated. Together with many uncertainty and action factor in slope slipping, geotechnical engineers can’t totally understand the mechanism and can’t obtain the evolvement proeess of body deformation in quantity nowadays. Today, it is a rather arduous assignment for controlling slope unstability, so it is very important to study stability and treating teehnique for slope deeply.The slope of the Cangshang gold mining area is choszen as the research object. We investigate through the exploration of the scene; understand its project geology and hydrology geological condition. In order to choose reasonable calculation parameter to go on slope stability analyze, the rock parameters have been optimized by empirical formula. At the base of holding engineering geological condition, the author choose the typical Icross section of the safety analysis of slope engineering and establish the reasonable model of theoretical calculation.The traditional theories are used to analyze side slope stability, calculate its safety coefficient and appraise its stability. Analysis shows that 479 lines,483 lines, 487 lines,491 line profile are critical slip surface, the factor of safety are 1.0 or so, there is the danger of sliding. Remaining stable sliding surface coefficients are above 1.05, the stable sliding surface coefficient.Numerical simulation tool FLAC3D and ANSYS are chosen as the analysis tool, which is widely used in the geotechnical engineering field. Typical cross section of the side slope is chosen fornumerical simulation; the calculation model is founded according to thegeological situation and landside mass characteristics. By the compare of the two kinds of results from the previous method and the simulation with strength reduction method,we can confirm that it’s feasible and practical to use the numerical simulation method. At the end, the author gives advice on comprehensive improvement to insure the stability of landslide.

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CLC: > Industrial Technology > Mining Engineering > Mining > Metal ore mining > Open-pit mining method > Slope stability
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