Effects of structural faults on ground control in selected coal mines in southwestern Virginia

by G. M. Molinda

Publisher: Dept. of the Interior in Washington, DC

Written in English
Published: Pages: 25 Downloads: 271
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Subjects:

  • Ground control (Mining) -- Virginia -- Buchanan County,
  • Faults (Geology) -- Virginia -- Buchanan County,
  • Coal mines and mining -- Virginia -- Buchanan County

Edition Notes

Statementby Gregory M. Molinda and David K. Ingram.
SeriesReport of investigations (United States. Bureau of Mines) -- no.9289.
ContributionsIngram, David K.
Classifications
LC ClassificationsUSBMRI#9289 1989
The Physical Object
Pagination25 p
Number of Pages25
ID Numbers
Open LibraryOL22071937M
LC Control Number89-600178

Finally, a complete and authoritative reference on U.S. coal mining methods. Chapters cover rock properties and in-situ stresses; geological conditions that form the rock strata, their anomalies and geophysical methods employed to detect the anomalies; roof bolts and roof bolting systems; pillar design; recent myths of high horizontal stresses; longwall mining; multiple seam mining; bumps. active longwall mines decreased by 11%. Longwall mines undermined fewer properties than room-and-pillar mines (1, vs. 1,), yet longwall mining accounted for % of reported effects to streams, 95% of the reported effects to land, and 94% of the adverse impacts to surface structures.   Descriptive statistical analysis of the soil data. Minimum and maximum values were used as estimates of the variability in soil properties. The results of the descriptive statistical analysis showed that a large difference between the minimum and maximum values of the soil factors, particularly the soil organic matter, and the values of these factors followed a normal distribution (Table 1).Cited by: Coal Operators’ Conference The AusIMM Illawarra Branch 6 – 7 July METHODS OF INTERPRETING GROUND STRESS BASED ON UNDERGROUND STRESS MEASUREMENTS AND NUMERICAL MODELLING J.A. Nemcik 1, W.J. Gale 1, M.W. Fabjanczyk 1 ABSTRACT: This paper presents several new methods to help interpretation and understanding of ground stress. The .

The study aims at assessing the effects on soil fertility due to stripping and stockpiling and evaluating the hypothesis of becoming unfertile. The opencast project under study is the largest project of Eastern Coalfields Limited (ECL), Godda District, Jharkhand 8. The mining started in Target production of coal is 10 million t/y. offsets on some faults. Leakage risks associated with coal sequestration in some areas of the central Appalachians: Subsurface, seismic and geomechanical evaluations Tom Wilson, Hema Siriwardane, Xiaochao Tang, Brian Connolly and Jamie Tallman West Virginia University, Morgantown, WV (@) 40 Analysis of power consumption at coal mines: 1. preliminary study (Report of investigations / United States Department of the Interior, Bureau of Mines) [Frank A Jones] on *FREE* shipping on qualifying offers. A Feasibility Analysis of Wind Power as an Alternative Post-mining Land Use in Surface Coal Mines in West Virginia Alek Charles Duerksen Surface coal mining in West Virginia has supplied energy to the eastern coast of the United States for over a century. Over the years, the coal mining industry has been forced to adapt as.

of coal can thus contribute to making the use of coal more efficient and sustainable. This article concentrates on automation trends in large-scale coal handling systems based on current and future ABB projects. From the mine to the plant Coal handling systems are an integral part of a complete material flow and quality management system. EJ6D EPA/ US EPA October ^ ~ Headquarters and Chemical Libraries ^ " EPA West Bidq Room 00/1 Maiicode T Constitution Aye NW Washington DC ENVIRONMENTAL IMPACT GUIDELINES FOR NEW SOURCE UNDERGROUND COAL MINES AND COAL CLEANING FACILITIES 0 -> EPA Task Officer: cJ Frank Rusincovitch 0 Repository . A coal burst mitigation strategy for tailgate in mining of deep inclined longwall panels with top coal caving at Huafeng Coal Mine is presented in this paper. Field data showed that coal bursts, rib sloughing or slabbing, large convergence, and so forth frequently occurred within the tailgate entries during development and panel retreating employing standard longwall top coal caving (LTCC Cited by: 6. Hanzlik -Hydrogeological Aspects of the Open-Pit Mine Slopes uniform directions. The faults are impossible to be correlated among the structural units. The cross faults, which form the block structure of the massif, represent the preferential zones for ground water flow. The large loosening of the crystalline complex surface is also significant.

Effects of structural faults on ground control in selected coal mines in southwestern Virginia by G. M. Molinda Download PDF EPUB FB2

Two faults related to the Pine Mountain overthrust sheet near Buchanan County, Virginia, were investigated to determine their effect on ground control and to develop recognition criteria for prediction. Both faults are right lateral, strike-slip faults overprinted simultaneously with thrust faulting.

Offsets of the coal seam due to thrust faulting average 6 ft with severe roof conditions (20 Cited by: 9. Large structural faults create serious ground control hazards, as well as adversely affect coal mine production.

Two faults related to the Pine Mountain overthrust sheet in Buchanan County, Virginia, were investigated by the Bureau of Mines to determine their effect on ground control and to develop recognition criteria for prediction. Effects of structural faults on ground control in selected coal mines in southwestern Virginia.

Washington, D.C.: U.S. Dept. of the Interior, Bureau of Mines, (OCoLC) Online version: Molinda, G.M. (Gregory M.).

Effects of structural faults on ground control. Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed by: 9.Effects of structural faults on ground control in selected coal mines in southwestern Virginia [microform] / by Gregory M.

Molinda and David K. Ingram U.S. Dept. of the Interior, Bureau of Mines Washington, D.C. ( E St., N.W., MS #, Washington ). Dept. of History., 1 book Belva Marshall Counts, 1 book Walter Millard Surratt, 1 book Mary B.

Kegley, 1 book Ralph LeRoy Miller, 1 book Marshall S. Miller, 1 book Charlton Gilmore Holland, 1 book Anne Lowry Worrell, 1 book David Baldacci, 1 book George W.

Bickley, 1 book. FAULTSANDTHEIREFFECT ONCOALMININGINILLINOIS lson ILLINOISSTATEGEOLOGICALSURVEY CIRCULAR NaturalResourcesBuilding EastPeabodyDrive Champaign, IL Vi rginia Ground-water data on the coal-bearing region of southwestern Virginia are sparse. Consequently, it was not feasible to construct a map show- ing the distribution of potential ground-water availability.

Potential well yields in Virginia's coal area range from low to moderate ( to 1/s, or 5 to 50 gpm) (Denning, ). Ground Control Study of a Mechanized Longwall Coal Operation in West Virginia. BuMines RI, 34 pp. M., and D. Y- Ingram. Effects of Structural Faults on Ground Control in Selected Coal Mines in Southwestern Virginia.

U.S. Department of Commerce, and U.S. Department of Interior. A Cost Comparison of Selected U.S. and. faults and their effect on coal mine roof failure and mining rate: a case study in a new south wales colliery.

Article (PDF Available) September with Reads How we measure 'reads'. This book includes 14 chapters. It begins with the introduction of U.S. coal mining methods in chapter I.

Rock properties and in-situ stresses are described in chapter two. The geological conditions that form the rock strata and their anomalies as well as the geophysical methods employed to detect the anomalies are illustrated in chapter three.5/5(1).

Three structural features identified as hazardous, but not so widespread or common as the depositional hazards, are faulting, joint- ing, and igneous intrusions. This survey establishes a foundation for future studies aimed at reducing and preventing ground control accidents in western coal mines.

mineralogy that control ground-water quality in the coal- producing area of southwestern Virginia. Table 1. Coal reserves and production in Virginia [Data in millions of short tons] County Reserves Production Buchanan Dickenson Lee Russell Scott Tazewel 1 Wise 3, 2, 2, 2 Author: John D. Powell, Jerry D.

Larson. CSX railroads via each company’s primary coal corridor lines. Virginia coal is exported from terminals in the Port of Hampton Roads to Europe, South America, and the Far East. o The Port, America’s largest coal export facility, serves as an export point for Virginia.

Overview of Ground Control Research for Underground Coal Mines in The United States C. Mark National Institute for Occupational Safety and Health, Pittsburgh Research Laboratory, Pittsburgh, PA, USA ABSTRACT: Underground coal mining continues. Groundwater outburst has an impartible relationship with geological structures such as water-conducting faults, which are widely distributed in north China.

In order to study the seepage property and mechanism of water outburst from the faults above a confined aquifer in the coal mining, the simulation model of ground water inrush for fault was by: Coal Operators’ Conference The AusIMM Illawarra Branch 10 6 – 7 July GROUND CONTROL IN COAL MINES IN GREAT BRITAIN James Arthur 1 ABSTRACT: In deep coal mining support of the underground roadway is fundamental and without knowledge of the mechanics of ground control a mine is unlikely to be operating safely and efficiently.

Gillette - Many large surface coal mines are located in a north-south belt of strippable coal in the Southern Powder River Basin that passes near Gillette (Keystone, ). The largest suspected explosion from this region that is listed in the catalogs of routine mining seismicity for May –March had ML(USGS) = The Sewickley is a rich coal seam that lies ft ( m) above the Pittsburgh coal seam in Southwestern Pennsylvania.

From a ground control perspective, the seam has proven very difficult to mine because of the complex and varying ground control issues that are present. Ground control is a major issue in underground coal mines. The “soft” nature of the rock, nearby bedding, and seam depth are just a few of the factors that make coal extraction dangerous.

In the United States between andover 3, injuries (fatal, non-fatal days lost, no. Ground control research in underground coal mines has been ongoing for over 50 years. One of the most problematic issues in underground coal mines is roof failures associated with weak shale. The geochemical processes controlling ground-water chemistry in the coal-producing strata of southwestern Virginia include hydrolysis of silicates, dissolution of carbonates, oxidation of pyrite, cation exchange, and precipitation of secondary minerals, kaolinite and goethite.

Core material from the Norton Formation of the Pennsylvania Period is composed of slightly more than one-half. U.S. coal mines has improved dramatically in the last 50 years, fatality rates continue to exceed other major industrial sectors (Fig.

Fatalities due to ground falls still make up a significant portion of this rate. Currently, underground coal production in the U.S. is split almost between large longwall mines and. Bycoal began to replace charcoal as a fuel for the numerous Kanawha River salt furnaces. Bythe western Virginia coal fields had received so much attention that Virginia's foremost geologist, Professor William B.

Rogers, was sent to visit the mines and analyze the coal in eight counties. Coal mining affects the environment in several ways: underground coal mining introduces toxins such as methane gas into waterways and the atmosphere, and surface coal mining contributes to deforestation and erosion.

Coal mining displaces large amounts of water, which in turn alters local water tables. The effects of coal mining on the hydrologic environment of selected stream basins in southern West Virginia / (Charleston, W.V.: U.S. Geological Survey ; Denver, CO: Books and Open-File Services [distributor], ), by James W.

Borchers, West Virginia Geological and Economic Survey, and Geological Survey (U.S.) (page images at HathiTrust). Ground Control Aspects of Coal Mine Design - Proceedings: Bureau of Mines Technology - Transfer Seminar; Lexington, Ky.; March 6, (Information Circular ) [Mining Research Staff] on *FREE* shipping on qualifying offers.

@article{osti_, title = {Coal mine floor heave in the Beckley coalbed, an analysis. Report of investigations }, author = {Aggson, J.R.}, abstractNote = {The floor heave ground control problems that have been encountered in a new underground coal mine in West Virginia are described.

Previous experience in the coal seam, the results of physical property investigations, and in situ. OMB Control No: ICR Reference No: Status: Historical Active Previous ICR Reference No: Agency/Subagency: DOL/MSHA Agency Tracking No: Title: Ground Control Plans for Surface Coal Mines and Surface Work Areas of Underground Coal Mines.

Coal seams themselves may be the targets of such mapping, but the work can be equally useful if non-coal beds, such as key sandstone, limestone or tuff horizons, can be traced as markers to delineate the structure and distribution of the coal-bearing sequence.

Igneous intrusions that may alter or replace the coal, and faults that may displace theFile Size: KB. Mingo County, located in the southwestern corner of West Virginia, in the heart of the Central Appalachian Coalfield, ranks among the leading coal-producing counties in the state.

Since the early s, mining operations throughout the county have exploited a series of 11 Middle Pennsylvanian coal seams Hennen and Reger,West Virginia Cited by: 6.India has the largest concentration of coal fires, and it is estimated that 80% of those fires started due to spontaneous combustion.

Indian coal fires were first documented in coal fields located in Raniganj back in In addition, mines in Jharia, Jharkhand are famous for their rich coal resources, but records show nearly 70 fires have been burning for over years dating back to According to the latest official notice on “Airborne Dust Limits, Collection and Analysis”, there are very clear limits for the concentration of airborne dust for underground mines in stipulates that the specified limit for quartz-containing dust is mg/m 3 for respirable quartz and the specified limit for respirable dust, other than quartz-containing dust, is mg/m by: