Covers for Mine Geowaste Facilities - 1: Principles, Practice, and Selection

Covers for Mine Geowaste Facilities - 1: Principles, Practice, and Selection

Areas of Study: Geotechnics

Qualifies for CMS

This course is the first in a series of two courses on covers for mine geowaste facilities. It deals with the general principles and practice of covers: their purpose, what objectives govern their selection and detailing, and what to consider when choosing a cover for your specific facility.

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  • Audience Level:
  • Professional
  • Enrollment:
  • Required
  • Duration:
  • 12 hours

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Certification is optional. Enrollment is required for Certification.

  • Fee for Certification:
  • Not Available
  • Completion:
  • 24 days
  • CEUs:
  • 1.2 (12 PDHs)

Course Summary

Introduction

Covers are constructed at mines sites over facilities such as tailings impoundments, heap leach pads, waste rock dumps, sludge ponds, and solid waste disposal units. Generally the cover is constructed as part of the closure and/or reclamation works. A wide range of cover types have been designed and constructed on mine facilities worldwide, from water covers, through soil covers, geosynthetic covers, and waste rock covers. The specifics of the cover are dictated by the:

  • type of waste covered;
  • materials available to construct the cover;
  • environment of the mine; and
  • governing regulations.
This course is the first in a series of two courses on covers for mine geowaste facilities. Covers for Mine Geowaste Facilities - 1: Principles, Practice, and Selection deals with the general principles and practice of covers—what their purpose is, what objectives govern their selection and detailing, and what to consider when choosing a cover for your specific facility. In this course, we examine the:

  • objectives of mine closure—the activity that most frequently gives rise to the need for a cover;
  • purpose of the cover, and hence the criteria which govern the design, construction, and ultimately the performance of the cover; and
  • layers or components of a cover—some to limit infiltration, some to resist erosion, and some to support vegetation.
The course includes numerous case studies from the author's extensive experience. It also includes descriptions of many types of covers that have been used and that could be used at mines.

This course is intended for all who seek to know more about covers for mines and their waste management facilities. There is information in this course for those charged with choosing a cover type, designing and constructing the cover, paying for the cover, and for those regulating and permitting a new cover. There is also information in this course for those who may be evaluating and judging a mine's closure plan, which normally includes one or more covers.

Topics in

include design analyses, performance assessment, cover construction, and surveillance and maintenance. include design analyses, performance assessment, cover construction, and surveillance and maintenance.

Course Content

Covers for Mine Geowaste Facilities - 1: Principles, Practice, and Selection consists of 20 viewing sessions of 30–60 minutes each with supporting figures, tables and examples, plus interactive course reviews. Course duration is equivalent to approximately 12 hours of viewing content.

Learning Outcomes

  • Recognize the general principles and practices of covers.
  • Identify the different types of covers constructed at mines.

Recommended Background

  • A degree in engineering, geology, environmental science, or equivalent discipline.
  • Experience in design, construction, or operation of large waste structures in mining.

Jack Caldwell P.E., MS.(Eng.), LLB

Jack Caldwell, P.Eng, has a B.Sc. in Civil Engineering, an M.Sc. (Eng.) in Geotechnical Engineering and a post-graduate law degree. He has over 35 years engineering experience on mining, civil, geotechnical and site remediation projects. He has worked on numerous projects throughout southern Africa, Europe, Latin America, Canada, and the United States. His project experience includes:

- mines and waste disposal facilities - design, construction supervision and reclamation of tailings impoundments, mine rock dumps, heap leach pads, landfills and radioactive waste disposal units;

- hazardous and radioactive waste site remediation - senior management and technical consultant

- landfills - design, construction, operation and closure with special focus on liners, covers, and soil reinforcement.

In addition, Mr. Caldwell has been the lead specialist for various geotechnical and civil engineering projects in Southern California. Mr. Caldwell has written many engineering reports, proposals, and technical papers. He is the lead author of the book, Principles and Practice of Waste Encapsulation, on the design of waste disposal facilities for radioactive and hazardous wastes.