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tips for designing slopes in surface coal mines pdf

10 Tips to Improve Mine Health & Safety | Creative Safety

In 1978, the first year the Mine Safety and Health Administration (MSHA) operated under the new Federal Mine Safety and Health Act of 1977, 242 miners died in mining accidents. MSHA continues to work to reduce injuries, illnesses and death through strong enforcement as well as active outreach, education and training, and technical support to

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PDF R5 BMA Guideline for the Design of Sustainable Mine Landforms

BMA GUIDELINE FOR THE DESIGN OF SUSTAINABLE MINE LANDFORMS SAFE STABLE SUSTAINABLE DRAFT ATTACHMENT 2 SLOPE TREATMENT GUIDELINE SUMMARY . Page 1 1 PREAMBLE Historically, the rehabilitation effort of opencut coal mines in Central Queensland has been relatively ad into account tailings and coal reject disposal.

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OPEN CAST MINE PLANNING - Mining and Blasting

1) Demand of coal. a. Countrywide demand b. Regional demand 2) Distribution of coal deposits 3) Quality of coal 4) Pricing policy for coal 5) Available infrastructures: rail, road, power, etc. 6) Nature of deposits (influences site, area method of work, & equipments of mining) 7) Availability of equipment 8) Existing work culture Surface mining

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Guidelines MDG 28: Safety requirements for coal stockpiles

MDG 28 : Safety requirements for coal stockpiles and reclaim tunnels . 1.4 Definitions . 1.4.1 Bridging A condition in which the hole above a draw down point for an operating feeder does not manifest at the surface of the coal stockpile. It is also known as doming, voiding and cohesive arches. 1.4.2 Coal placement structures

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CHAPTER 11 Mining Technology

face coal mining now predominates in most areas of the West. Because coal seams are generally thicker and nearer the surface in most Western States, compared to the East, they are more amenable to recovery by sur-face mining techniques. Surface mining operations are usually well-suited to the many areas of the West that have not yet ex-

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Evaluating SEDCAD Model Performance on Reclaimed

In the surface coal mining industry, the Sediment, Erosion, Discharge by Computer Aided Design (SEDCAD) program is extensively used for developing engineered plans with best management practices (BMPs) for erosion control [U.S. Department of the Interior (USDOI 2010)]. As required by the Surface Mining Control and Reclamation

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PDF Analysis of Safety Aspects And Mining Practices For

slope under given conditions. Effective slope design includes determining safe and workable bench height, bench face angle, and bench width. To determine the relationship of mine design parameters/practices and effective ground control in surface mining, this study was undertaken. It included coal and nonmetal mines, and consisted of four parts:

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Appendix E: Coal Mining and Processing Methods | Coal

Steep topography, a steeply dipping seam, or multiple seams, all present challenging problems for designing stable slopes and productive operations in surface mining situations. Surface topography controls which of the surface mining methods—contour mining, area strip mining, or open-pit mining—is employed (see Figure 4.3). These differ

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GUIDELINES FOR THE INTEGRATED PLANNING AND DESIGN

Ø The goal of the planning and design of underground coal mining operations is a strategy for designing an integrated mineral exploitation system that will ensure that coal is extracted and prepared at a desired market specification, at a minimum unit cost, within acknowledged safety, health, social, legal and regulatory constraints. Ø

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Surface mining planning and design of open pit mining

So the overall pit slope is lesser the inter-ramp slope. In the example, almost 50% more tonnage must be moved to mine the same pit bottom. In the early design of a pit a lesser pit slope can be used to allow for the road system. The pit in Fig. 5 was designed with an overall slope of 380. The overall slope to use will depend on the width

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PDF Rock mass properties for surface mines

Rock mass properties for surface mines Evert Hoek and Antonio Karzulovic Published in Slope Stability in Surface Mining, (Edited by W.A. Hustralid, M.K. McCarter and D.J.A. van Zyl), Littleton, Colorado: Society for Mining, Metallurgical and Exploration (SME), 2000, pages 59-70.

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Formation Mechanism and Control Measures of Sliding Surface

During the mining process of Hami open-pit coal mine, a large number of cracks appeared on the ground surface near the top of the end slope, which affected the stability of the slope and the subsequent safe mining of resources. By analyzing the deformation of rock stratum, the position of weak interlayer in the slope was determined. Considering the rock mass with weak interlayer as a complete

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PDF Resources ARblast: All Resources on Blasting A

2011 WV OEB: Predictability of Airblast at Surface Coal Mines in West Virginia 2007 WV OEB: Report Relating Surface Coal Mines Scaled Distance to Deep Mine Roof Peak Particle Velocities 2006 WV-OEB: Potential Effects of Surface Mine Blasts Upon Bat Hibernaculum 2005 Henderson, NV: Structure Response Study

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Design of openpit mining - SlideShare

E. Pit design E Contd.In general for OC mines upto a depth of 200m, overall slope angle of 450 ispermitted. ISN 18. E Contd.E. Pit designFor deeper mines flatter highwall slopes will be necessary from safety point ofview (for 35 T dumpers & above) ISN 19. E.

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PDF Government of India Ministry of Labour & Employment

Directorate General of Mines Safety DGMS (Tech.) (S&T) Circular No. 02 Dhanbad, Dated 06.07.2010 To All Owners, Agents and Mangers of Mines Subject: Design, Control and Monitoring of Pit and Dump Slopes in Opencast Mines Sir, 1.0 INTRODUCTION: In India, fast increase in output of various minerals can be largely attributed to rapid

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Geotechnical Information for Design - IN.gov

2013 Indiana Design Manual, Ch. 18 Page 9 18-2.01 Coal-Mine Subsidence Coal-mine subsidence occurs once the effects of r oof collapse in an underground coal mine reaches the surface or reaches structure foundations. Figure 18-2A identifies the counties where coal-mine subsidence is

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GEOTECHNICAL CONSIDERATIONS IN OPEN PIT MINES

Mine planning deals with the correct selection and coordinated operation of all the sub -systems, eg. mine production capacity, workforce numbers, equipment selection, budgeting, scheduling and rehabilitation. Mine design is the appropriate engineering design of all the sub-systems in the overall mine structure, e.g. production and near-wall

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A Coal Mine Dump Stability Analysis A Case Study

A Coal Mine Dump Stability Analysis an important aspect of designing large open pit mines. The majority of slope stability analyses performed in . the slope failure, the arc of rupture surface meets the slope above the toe. This is possible only when slope

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PDF Design of Surface Mine Haulage Roads - A Manual

Design of Surface Mine Haulage Roads - A Manual By Walter W. Kaufman and James C. Ault ABSTRACT This Bureau of Mines manual for design of surface mine haulage roads covers such aspects of haulage road design as road alignment (both vertical and horizontal), construction materials, cross slope, and drainage provisions.

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Slope Mining, Shaft Mining, Drift Mining, Mining

Based on the depth of the coal seam and the surrounding terrain, the decision of what type of mine to construct is decided. More or less all underground mines are not as much of 1,000 feet deep, but some mines reach depths of about 2,000 feet. As a rule, slope mines begin in a valley bottom, and a tunnel slopes down to the coal to be mined.

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DEPARTMENT OF MINES, MINERALS AND ENERGY DIVISION

Subject: Requirements for Haulroad Construction and Design The Virginia Coal Surface Mining Reclamation Regulations at 4 VAC 25-130-816.150, 151 and 152 and 4 VAC 25-130-817.150, 151 and 152 – Roads; general, primary roads and existing roads are specific about the types of roads that are used at mine sites.

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PDF) Surface Mine Design

Auger mining is a surface mining techniq ue used to recover additional coal from a seam located behind a highwall produced either by stripping or open-pit mining.

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HYDROLOGY OF THE ABANDONED COAL MINES IN THE

As the coal~was exhausted, or as~ mining became uneconomical,-many- mines in the anthracite coal fields were closed and allowed to fill with water. By 1960, pumping of-water-from-mines-In the Lackawanna Coal Basin-. _ had stopped, and the mine-water levels rose until they overflowed at the surface; discharges were largest near Old Forge and Duryea.

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Open Pit Mine Planning and Design, Third Edition ~ Mining

Open Pit Mine Planning and Design is an excellent textbook for courses in surface mine design, open pit design, geological and excavation engineering, and in advanced open pit mine planning and design. The principles described apply worldwide. In addition, the work can be used as a practical reference by professionals.

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Surface Mining Methods and Equipment - EOLSS

comparison of the total injury rates in US coal mines. The injury rates have declined both in surface and underground mines. However, the total number of injuries per one million employee-hours for underground US coal mines in the last decade is three to four times higher than for surface mines.

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Spoil tip - Wikipedia

At Nœux-les-Mines, an artificial ski slope has been constructed on the tip. If spoil tips are considered to contain sufficient amounts of residual material, various methods are employed to remove the spoil from the site for subsequent processing. The oldest coal-based spoil tips may still contain enough coal to begin spontaneous slow combustion.

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