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| MDML5544 | Backfill System in Mining | 3+0+0 | ECTS:7.5 | | Year / Semester | Spring Semester | | Level of Course | Second Cycle | | Status | Elective | | Department | DEPARTMENT of MINING ENGINEERING | | Prerequisites and co-requisites | None | | Mode of Delivery | | | Contact Hours | 14 weeks - 3 hours of lectures per week | | Lecturer | Prof. Dr. Bayram ERÇIKDI | | Co-Lecturer | | | Language of instruction | Turkish | | Professional practise ( internship ) | None | | | | The aim of the course: | | The course aims to provide a comprehensive and theorotical understanding of the surface and underground mine backfill systems. |
| Programme Outcomes | CTPO | TOA | | Upon successful completion of the course, the students will be able to : | | | | PO - 1 : | understand the effect of physical, chemical, mineralogical and rheological properties of the constituents of the backfill on backfill performance | 11 | 1,3 | | PO - 2 : | design the most appropriate backfill mix for the strength, durability and operating cost of backfill | 11 | 1,3 | | PO - 3 : | have knowledge about surface disposal of mine tailings, deep sea tailings disposal and their effects on the environment | 11 | 1,3 | | PO - 4 : | learn the basic principles and practices of underground mine backfill applications and choose the suitable backfill type based on the underground mining methods | 11 | 1,3 | | PO - 5 : | understand the role of geomechanical properties on the in-situ backfill performance and make the suitable backfill barricade design | 11 | 1,3 | | PO - 6 : | have knowledge about the practical industry application of mine backfill | 11 | 1,3,6 | | CTPO : Contribution to programme outcomes, TOA :Type of assessment (1: written exam, 2: Oral exam, 3: Homework assignment, 4: Laboratory exercise/exam, 5: Seminar / presentation, 6: Term paper), PO : Learning Outcome | | |
| Introduction to mine backfill, basic mine fill materials; tailings, natural sands, rock and aggregate, cement, pozzolans, chemical admixtures, alkali-activated binders, geomechanics of backfill, some volumetric relationships, particle size distribution of backfill, permeability in mine fill, compaction and consolidation in mine fill, shear strength of backfill, arching in backfill masses and stability analyses, fluid mechanics of mine backfill, rheology, transport and placement of mine backfill, backfill barricade design, laboratory optimization of backfill design, backfill quality control, underground mine backfill methods, hydraulic fill, rock fill, paste fill, surface disposal of mine tailings, deep sea mine tailings disposal, examples of backfill applications, in-situ monitoring of mine backfill performance, backfilling costs, environmental impacts of mine backfill. |
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| Course Syllabus | | Week | Subject | Related Notes / Files | | Week 1 | Introduction to mine backfill, why mine fill?, considerations for selection of mine fill systems, brief history of mine fill | | | Week 2 | Basic mine fill materials, tailings, sizing, mineralogy, particle shape, tailings oxidation, rock and aggregate, aggregate grading, attrition | | | Week 3 | Cement, chemical reactions, cement contents, pozzolans, fly ash, slag, gypsum, other pozzolans, chemical admixtures, alkali activated binders | | | Week 4 | Geomechanics of mine fill, some volumetric relationships, degree of saturation, water content of fill, solids content | | | Week 5 | Particle size distribution of backfill, particle size distribution curve, uniformity of fill, fill permeability, determination of coefficient of permeability | | | Week 6 | Compaction and consolidation of mine fill, shear strength of fill, measurement of shear strength, arching in fill masses and stability analysis | | | Week 7 | Fluid mechancis of mine fill, rheology, transport and placement of mine backfill, drainage through hydraulic fill, backfill barricade design | | | Week 8 | Mid-term exam | | | Week 9 | Laboratory optimization of backfill design, binder types and dosage, mixing water and its quality, backfill mixing procedure, backfill quality control | | | Week 10 | Underground mine backfill methods, hydraulic fill, rock fill, paste fill | | | Week 11 | Surface disposal of mine tailings | | | Week 12 | Deep sea mine tailings disposal | | | Week 13 | Examples of backfill applications, Cayeli copper mine, Efemçukuru gold mine, Eti copper mine | | | Week 14 | In-situ monitoring of mine backfill performance, backfilling costs | | | Week 15 | Environmental impacts of mine backfill | | | Week 16 | End-of-term exam | | | |
| 1 | Potvin, Y., Thomas, E., Fourie, A, 2005; Handbook on Mine Fill, Australian Centre for Geomechanics Publ, Western Australia, 179 sayfa. | | | 2 | Landriault. D.. 2001. Backfill in underground mining, (Bölüm 69) in: W.A. Hustrulid (Eds.). Underground Mining Methods Engineering Fundamentals and International Case Studies. SME. sayfa. 601-614. | | | |
| 1 | Jewell, R.J., Fourie, A.B., Lord, E.R., 2002; Paste and Thickened Tailings, A Quide, Australian Centre For Geomechanics Publ, Western Australia, 173 sayfa. | | | |
| Method of Assessment | | Type of assessment | Week No | Date | Duration (hours) | Weight (%) | | Mid-term exam | 8 | 23/11/2018 | 100 | 50 | | End-of-term exam | 16 | 18/01/2019 | 100 | 50 | | |
| Student Work Load and its Distribution | | Type of work | Duration (hours pw) | No of weeks / Number of activity | Hours in total per term | | Yüz yüze eğitim | 3 | 14 | 42 | | Arasınav | 2 | 1 | 2 | | Dönem sonu sınavı | 2 | 1 | 2 | | Total work load | | | 46 |
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