Numerical Modeling of Sedimentation and Non-Linear Consolidation of Wet Iron Ore Mine Tailings

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Mohammadzadeh Taleshi, Mostafa | 2021

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 54693 (09)
University: Sharif University of Technology
Department: Civil Engineering
Advisor(s): Pak, Ali
Abstract:
Management and reservation of mine tailings are among the most important problems in today’s engineering. Among the different kinds of mine tailings, wet tailings are of the most critical ones due to their slurry shape. In addition to their different form of settlement than normal kinds of soil, they can easily transfer the pollutants through their base to the adjacent areas. Therefore, investigation of their sedimentation and consolidation processes is necessary. In this thesis, it has been tried to program a code according to the literature, in order to simulate the sedimentation and consolidation process of wet tailings. The mathematical method that has been used in the thesis for solving the differential equations is Finite Difference Method. After verification of the code, parametric and sensitivity analysis has been done. The results show that settlement velocity of the sediments in the slurry, decreases with the increase of initial height of the slurry, and it increases by the increase of specific density of solid particles. Also, the initial void ratio of the slurry is critical in the sedimentation and consolidation procedures of the slurry
Keywords:
Sedimentation ; Consolidation ; Slurry ; Consolidation Test ; Self-Weight Consolidation ; Wet Mine Tailings ; Ultra-Soft Soil

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