Sublevel open stopping sublevel stoping is a vertical mining method in which a large open stope is create within the vein. Pdf sublevel stoping at a large underground quarry. To learn about the shapes of the orbitals mechanical model. Design and dimensioning of sublevel stoping for extraction of thin ore jun 06, 2010 rain sound and thunder 2 hours sleep meditation sound duration. Introduction the sublevel stoping mining method is usually applied to a relatively steeply dipping, competent ore body, surrounded by competent wall rock. This document explains how to set action buttons in a pdf form in acrobat dc.
Ive been searching around for the codemethod to print out pdf documents. Sublevel open stopping virendra suryawanshi 10108en066 2. A new empirical design approach has been developed for estimating unplanned dilution from open stope hangingwalls and footwalls. Stop print dialog from opening as soon as pdf form is opened. This document contains steps on how to make the browser download pdf files automatically, rather than open in a new tab. The length of the hole to be drilled depends on the extent of the ore and the sublevel spacing. Adobe reader freezes loading a pdf business applications. A long hole stoping system for mining narrow platinum reefs. Backfill practices for sublevel stoping system springerlink. Pdf on jan 1, 2005, marilena cardu and others published sublevel stoping at a large underground quarry.
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. Pdf design and dimensioning of sublevel stoping for. My choices for opening these files are adobe acrobat reader dc and firefox respectively. This method owes the first part of its name to the fact that work is carried out on many intermediate levels that is, sublevels between the main levels. Sublevel stoping at a large underground quarry semantic scholar. I cannot open a pdf file in ie explorer 10 browser. I created a pdf form on a mac and when i open it, the print dialog opens right away. Geotechnical design for sublevel open stoping top results of your surfing geotechnical design for sublevel open stoping start download portable document format pdf and ebooks electronic books free online rating news 20162017 is books that can provide inspiration, insight, knowledge to the reader. Australian centre for geomechanics underground mining methods mike turner shrinkage methods section 10, page 4 10. Adobe reader freezes loading a pdf posted in business applications. Stop adobe reader from opening when a pdf is saved.
Print spooler stops after trying to print a pdf file and. Buttons are most commonly associated with forms, but you can add them to any document. Rain sound and thunder 2 hours sleep meditation sound duration. This method is similar to cut and fill mining with the exception that after being blasted, broken ore is left in the stope where it is used to support the surrounding rock and as a. Last, blasting in sublevel caving in the future will be discussed. To learn about the shapes of the s, p and d orbitals 2. When a user is reading a file, browser is downloading that file to temp. Feb 10, 2018 black diamond drilling services australia database.
Underground mining machinery glossary bibliography biographical sketches summary. 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 partic. Before mining begins, an ore pass is usually drilled from a lower to a higher elevation. The second section describes underground mining equipment, with particular focus on excavation machinery such as boomheaders, coal cutters, continuous miners and shearers. To proceed, select your browser from the list below and follow the instructions. What is the difference between sublevel stopping and sublevel. Draw control strategy for sublevel caving mines simple search.
Sperr in the engineering and minting journal of june 5, 1912, and by p. An underground mining method used in large, steeply dipping orebodies where the wall rock is of an incompetent nature. Sublevel stoping sublevel stoping is a mining method in which ore is blasted from different levels of elevation but is removed from one level at the bottom of the mine. Ore is produced by drilling and blasting longholes, which can range from 50 mm 2 in. Minimizing dilution in open stope mining with a focus on. You press print, excel asks you to name the pdf, and then it begins to print. Design and operation of caving and sublevel stoping mines stewart, daniel r. Ore is recovered from each sublevel in a planned sequence of primary and secondary stopes with delayed backfill in a manner to create a stress shadow to avoid high stress. You can earn a 5% commission by selling geotechnical design for sublevel open stoping on your website. When in place, any attempt to open a pdf file within safari is initially blocked. Today i had the same experience with an attached word file.
Geotechnical design for sublevel open stoping crc press book. By default, most downloaded pdf files open in the internet browser currently in use, usually in a new window or tab. Sublevel stoping requires a midrange ore grade in order to pay for its development. Jumbos selectively drill holes into the roof of the drift and fill them with explosives. 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. The orebody is developed first by a series of sublevel drifts above the main haulage level. When i try to print a pdf file again the print spooler does the same thing. I create files all the time through microsoft word and excel. The research encompassed both stope design and narrow vein longhole blasting. This thesis presents the results of three years of research which focused on minimizing dilution in open stope mining. Sublevel stoping is one of the most useful underground mining methods in steeply dipping hardrock ore bodies. If you are looking for more information on form fields properties, click the appropriate link above.
Harraz presentation sublevel stoping 3 conditions for application of the deposit. For sublevel stoping the ore body and walls should be strong enough to support open stoping. The only way i have been able to print again is to do a system recovery. The print spooler stops after trying to print a pdf file and it will not restart. Geotechnical design for sublevel open stoping, ernesto. 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. You can also save individual pdfs to other file formats, including text, xml, html, and microsoft word. You can create bookmarks from existing text or you can use your own text to describe the content. Underground mining methods and applications production headframe hans hamrin 1. In the quarry considered some features of the production. So even if you disable the download button, the user can click file save as or copy that file from temp folder.
The sublevels are connected by a starting raise at one end of the stope and by a passageway raise for. I simply want it to save as a pdf and go on with my l. Protect your pdf file and restrict others from editing. How to fix excel printing a workbook to multiple pdf files. When i save these files as pdfs, adobe reader automatically opens. Stoping is the process of extracting the desired ore or other mineral from an underground mine, leaving behind an open space known as a stope.
Draw control strategies in sublevel caving mines a baseline mapping of. If open is clicked, the pdf file will open in the adobe reader app for windows 8. Oct 22, 2014 sublevel stoping underground mining methods 1. Section 10 shrinkage methods mike turner australian mining. Prevent adobe reader from opening pdfs in the browser disable one setting to stop this behavior. Shrinkage stoping is a shorthole mining method which is suitable for steeply dipping orebodies. Sublevel definition is a level that is lower than or subordinate to another level. Mining methods and method selection snu open courseware. Ebook geotechnical design for sublevel open stoping as pdf. Rock blasting in underground mining pdf free download. Stop print dialog from opening as soon as pdf form is. For example, we can say that an electron in a hydrogen atoms 1s sublevel will be found 99 percent of the time somewhere in a sphere with a given radius around the nucleus. So my question is, how can i generate a pdf with itextsharp without saving it and put it to the user. Example of stopes with 2 drilling tunnels per sublevel.
All relevant design perimeters of the area to be mined were taken into consideration. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Mechanisation and thereby choice of equipment was vital for the feasibility of mining the selected stopes. Its easy to get started we will give you example code. In vertical retreat mining the stope does not take the shape of a vertical slot. Sublevel stoping is not dependent on the width of the ore body. Sublevel definition of sublevel by the free dictionary. A long hole stoping system for mining narrow platinum reefs advantages of this mining method it allows for a low safety and health risk as well as improved working environment. This open stope is not meant to be occupied by the miners therefore,all work of drilling and must be performed from sublevel within the ore block. Mar 31, 20 now, when attempting to open a pdf file while in internet explorer 10, an open, save, cancel message will display at the bottom of the browser window. Jul 04, 2017 for sublevel stoping the ore body and walls should be strong enough to support open stoping. If you make this one small tweak, youll be notified if a website tries to open a pdf in your.
This mining method can be used at a wide range of depths. Mcafee blocks opening pdf files with adobe acrobat reader. Angle at which an ore deposit is inclined from the horizontal. As advised, i went to the firewall and reset it to default settings. How to change browser download settings for pdf files. In this mining method, the ore is excavated in open stopes, retreating from one end of the stope toward the other. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Underground mining machinery glossary bibliography biographical sketches summary the first section gives an overview of underg round mining methods and practices as used commonly in underground mines, including classification of underground mining. Follow these steps to use adobe acrobat or reader to save your changes to an adobe pdf or pdf portfolio in the original pdf or in a copy of the pdf.
A long hole stoping system for mining narrow platinum reefs sandvik. This is the reason we can draw the s sublevel s orbitals as a sphere. Design and operation of caving and sublevel stoping mines. It was developed over the years from a method originally known as short hole bench and train mining.
Generally a large scale open stoping method, it is often referred to as long hole or blast hole stoping. The small drill rig, tracker 526, only 1,1m wide and 1,85m high had to be developed by atlas copco for the purpose of narrow mining. After youre setup, your website can earn you money while you work, play or even sleep. Fortunately, theres an easy way to prevent adobe reader and acrobat from automatically rendering pdf files in your browser. In sublevel stoping, shorter blastholes are drilled from sublevels located at shorter vertical intervals along the vertical stope. Widths of less than 6 m 20 ft, however, make the utilization of longhole drilling techniques more difficult. Being classified into sublevel open stoping and stage open stoping according to the stage height. 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. Easily prevent them from editing and copying information, or finetune file permissions to limit other activities like printing, commenting, form filling, and adding 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 wo. I work as the it guys righthand man in an office, and i have one user, probably more, who needs to bring up pdf files in ie. 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.
The following code will embed a pdf without any toolbars and hide the printdownload icons. I dont want to do that because therere going to be a lot of people downloading the pdf file and the server will be full in no time. Sublevel open stoping originated in the early 1900s in iron ore mines in michigan, usa. Stoping is used when the country rock is sufficiently strong not to collapse into the stope, although in most cases artificial support is also provided. The design examples used in this dissertation is based on the o640, l651 and n659. For sublevel stopping most drill patterns involve keeping the holes on a vertical or near vertical plane on each sublevel.
A drawpoint is located beneath the stoping area, and gravity flow transfers the ore to the loading place. The modern sublevel caving was possibly developed in the iron mines of sweden 1. This open stope is not meant to be occupied by the miners therefore. 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. This book presents the latest mining principles and techniques in use today. Learn how to make sure that printing multiple sheets to a pdf gives one pdf and not many. If you have ever tried to print a large excel workbook to a pdf file, youve probably run into this issue. This is my unfinished code to print documents in a folder containing documents with 3 distinct headers, dn inv and po. Sublevel caving technique free download as pdf file. Sublevel stoping mining methods are generally employed to extract steeply dipping tabular ore deposits characterized by relatively long strikes and having various thicknesses. The second half of the name derives from the caving of the hanging wall and. Horizontal or nearly horizontal underground opening. What is the difference between sublevel stopping and.
Design and operational issues for increasing sublevel cave. Economic comparison of drilling systems in sublevel stoping method. Mcdonald in the mining and scientific press of july 5, 19, is really a combination of several different methods of stoping. 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. Otherwise, click the down arrow next to save, choose save as and save the file somewhere on your system. Bookmarks provide a listing of contents that reside within an adobe acrobat creative suite 5 pdf file or links to external content. Is there an option that i need to select in order to prevent this. The resulting design charts are based on quantifiable measurements of. Generally holes are not longer than 25 meters, as anything longer will likely have deviation issues. Pdf sublevel stoping underground mining methods researchgate. I just downloaded the latest version of adobe reader 18. In this method, the ore is excavated in open stopes, retreating from one end of the stope toward the other. Parallel drives are developed in the ore on equally spaced levels.