Stack overflow for teams is a private, secure spot for you and your coworkers to find and share information. The book was published in multiple languages including english, consists of 32 pages and is available in hardcover format. Some of the manuals, including individual resiliency training and cognitive behavioural therapy. The first comprehensive work on one of the most important underground mining methods worldwide, geotechnical design for sublevel open stoping presents topics according to the conventional sublevel stoping process used by most mining houses, in which a sublevel stoping geometry is chosen for a particular mining method, equipment availability, and wo. Underground mining methods and applications production headframe hans hamrin 1. These speech and articulation worksheets are free to download as support material to the related articles found on this site, and they are intended for use in. The orebody is developed first by a series of sublevel drifts above the main haulage level. In this mining method, the ore is excavated in open stopes, retreating from one end of the stope toward the other.
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This material is intended for use in lectures, presentations and as handouts to students, and is provided in power point format so as to allow customization for the individual needs of course instructors. Download geotechnical design for sublevel open stoping pdf. Caving underground mining methods longwall, sublevel. Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds or rubies. The method is flexible, has rapid effect and integrates advantages of a nonpillar sublevel caving method and a sublevel room stoping method, and a new process is provided for recycling mediumstable and mediumthick ore bodies. It is defined as a concentration of minerals that can be exploited and turned into a saleable product to generate a financially acceptable profit under existing economic conditions. Design and operational issues for increasing sublevel cave.
It is not an exact science and in the choice of a method each varying factor has a certain weight, which, in many cases, experience alone can determine. Leahy 1400097665 iba welcome to reddit, the front page of the internet. Something is preventing pdf files from opening microsoft. Reflecting the international and diverse nature of the industry, a series of mining case studies is presented covering the commodity range from iron ore to diamonds extracted by operations located in all corners of the world. This book presents the latest mining principles and techniques in use today. The objective here is to present a design methodology applicable to sublevel open stoping, but also to then bridge the gap between theory and practice by applying said methodology to an actual design example. Adobe acrobat reader is the pdf software of choice for many.
The main criteria for sublevel open stoping are competent ore and stable host rock, regular ore boundaries, and a footwall dip that exceeds the angle of repose of broken ore. How to resolve acrobat reader download issues adobe support. Description download sublevel stoping kelompok 3 oke. Cn105822307a underhand sublevel open stoping method. Geotechnical design for sublevel open stoping presents topics according to the conventional sublevel stoping process used by most mining houses, in which a sublevel. Soft rock mining refers to excavation of softer minerals such as salt, coal. Pdf stopping by woods on a snowy evening book by robert. If youre looking for a free download links of geotechnical design for sublevel open stoping pdf, epub, docx and torrent then this site is not for you. In any discussion of methods of underground mining comparison, one is repeatedly confronted with the difficulty of dealing with so many variable conditions. Hustulid, editor society of mining engineers 1982 1794 pages. The first comprehensive work on one of the most important underground mining methods worldwide, geotechnical design for sublevel open stoping presents topics according to the conventional sublevel stoping process used by most mining houses, in which a sublevel stoping geometry is chosen for a particular mining method, equipment availability, and work force experience.
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