Download or read book Analysis of Disabling Injuries Related to Roof Bolting in Underground Bituminous Coal Mines 1973 written by Wayne K. Miller and published by . This book was released on 1975 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Disabled Injuries Related to Roof Bolting in Underground Bituminous Coal Mines 1973 written by United States. Mine Safety and Health Administration and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mining Roof Bolting Machine Safety written by and published by . This book was released on 2005 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mine Roof Bolting Machine Safety written by Department of Health and Human Services and published by CreateSpace. This book was released on 2013-10 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis of accident/injury data for 2001 through 2005 from the Mine Safety and Health Administration (MSHA) revealed that powered machinery accounted for nearly 40% of the total underground coal injuries reported and 62% of all fatalities. Underground coal miners work in an environment with limited space for lateral movement and in awkward postures, including kneeling on one or both knees. During informal discussions, MSHA and the United Mine Workers of America expressed concerns about the velocity of appendages on machines used in such environments. This report describes a study of operator movement relative to the motion of a roof bolting machine boom arm. This work was aimed at reducing the risk of injury to underground coal mine workers from moving machinery. The study used motion capture technology to evaluate human movement in restricted heights and postures while controlling a mockup of a roof bolter boom. Results suggest that boom horizontal swing velocity is an important factor in determining operator safety from pinch point and crush hazards during the boom positioning phase of the bolting sequence. The working height where the machine is operating, the operator's working posture, and the direction of the swing, toward or away from the operator, are also important in determining safe boom velocity.

Download or read book Analysis of Accidents from Roof Bolting Practices in New South Wales Underground Coal Mines written by Industrial Risk Management (Firm) and published by . This book was released on 1992 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Human Factors Analysis of the Hazards Associated with Roof Drilling and Bolt Installation Procedures written by Pittsburgh Research Center (U.S.). Mining Systems and Human Engineering and published by . This book was released on 1994 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: "At the request of the West Virginia Board of Coal Mine Health and Safety, the U.S. Bureau of Mines (USBM) initiated a study of human factors issues related to roof bolting in underground coal mines. The objectives of the study was to determine what hazards may be associated with roof bolting and recommend solutions to those hazards. The study focused on hazards that exist during the roof drilling and bolt installation procedures. Particular emphasis was placed on hazards associated with the fast feed lever and movelment of the drill head boom or mast." p. 1

Download or read book Human Factors Analysis of Roof Bolting Hazards in Underground Coal Mines written by Fred C. Turin and published by . This book was released on 1995 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mine Roof Bolting Machine Safety written by Joseph H. DuCarme and published by Createspace Independent Pub. This book was released on 2010-02-28 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: "An analysis of accident/injury data for 2001 through 2005 from the Mine Safety and Health Administration (MSHA) revealed that powered machinery accounted for nearly 40% of the total underground coal injuries reported and 62% of all fatalities. Underground coal miners work in an environment with limited space for lateral movement and in awkward postures, including kneeling on one or both knees. During informal discussions, MSHA and the United Mine Workers of America expressed concerns about the velocity of appendages on machines used in such environments. This report describes a study of operator movement relative to the motion of a roof bolting machine boom arm. This work was aimed at reducing the risk of injury to underground coal mine workers from moving machinery. The study used motion capture technology to evaluate human movement in restricted heights and postures while controlling a mockup of a roof bolter boom. Results suggest that boom horizontal swing velocity is an important factor in determining operator safety from pinch point and crush hazards during the boom positioning phase of the bolting sequence. The working height where the machine is operating, the operator's working posture, and the direction of the swing, toward or away from the operator, are also important in determining safe boom velocity." - NIOSHTIC-2

Download or read book Mine Roof Bolting Machine Safety written by Joseph H. DuCarme and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "An analysis of accident/injury data for 2001 through 2005 from the Mine Safety and Health Administration (MSHA) revealed that powered machinery accounted for nearly 40% of the total underground coal injuries reported and 62% of all fatalities. Underground coal miners work in an environment with limited space for lateral movement and in awkward postures, including kneeling on one or both knees. During informal discussions, MSHA and the United Mine Workers of America expressed concerns about the velocity of appendages on machines used in such environments. This report describes a study of operator movement relative to the motion of a roof bolting machine boom arm. This work was aimed at reducing the risk of injury to underground coal mine workers from moving machinery. The study used motion capture technology to evaluate human movement in restricted heights and postures while controlling a mockup of a roof bolter boom. Results suggest that boom horizontal swing velocity is an important factor in determining operator safety from pinch point and crush hazards during the boom positioning phase of the bolting sequence. The working height where the machine is operating, the operator's working posture, and the direction of the swing, toward or away from the operator, are also important in determining safe boom velocity."--NIOSHTIC-2.

Download or read book Stress Corrosion Cracking of Rebar Roof Bolts in U S Underground Coal Mines written by Gopi Bylapudi and published by . This book was released on 2014 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: According to the National Institute of Occupational Safety and Health (NIOSH), about 100 million rock anchors were installed in the USA mining industry during 1999 (Dolinar, 2000). The rock bolt usage in US coal mining industry fell from 85 million in the year 1988 to 68 million by 2005 (Tadolini, 2006), and is assumed to be close to that number of rock anchors consumed currently since, the tonnage from underground is almost the same. Most underground coal mines have conditions such as moisture in the atmosphere, ground water with different chemical contents that are conducive for corrosion of rock anchors and ancillaries (such as plates), and the effects of this on the performance of the anchors had been researched in the US to an extent from the past research at Southern Illinois University Carbondale (SIUC). In addition to the general corrosion like pitting and crevice, stress corrosion adds to the process a potentially serious threat and results in material failure underground due to stress corrosion cracking (SCC) yet the effects are not fully understood in the USA. The results of this research therefore will have a positive and direct effect on rock related safety. During this research project in situ specific tests were conducted with bolts to try and determine the corrosion potential in a specific coal-mining region. The coal mining areas were divided into three regions and were named as East, Mid-West and West respectively. To enhance the value/importance of the field data collected from the mines, a metal mine and a salt mine (two non-coal mines) were included in the plan and the data analysis proved that the methodology developed for determining the corrosion potential underground is applicable to any underground mines. The in situ studies include water samples collection and analysis and open circuit potential (OCP/Eoc) testing and analysis. Open Circuit Potential (OCP) data were recorded to estimate probability of active corrosion. Hypothetically, probability of active corrosion is lower if the actual OCP of roof bolts in the mine is less than the characteristic OCP of the steel grade, and vice versa. The effects of certain factors such as the roof condition, reference distance (distance between bolt and reference electrode) on the open circuit potential data during the measurements were studied to ensure its impact on the corrosion potential determination technique developed. The findings from this research helps standardize the corrosion potential determination methodology. The preliminary study of stress corrosion cracking of the subject test sample (Grade 60 rebar roof bolt) was conducted in this research work. The experimental study involves testing a complete roof bolt in the mine simulated environment. The mine simulated environment in the test cell consists of the roof strata material collected from the mine site with continuous flow of water at slower and variable flow rate (0 to 3 ml/minute) with pH in the range of 7.5 to 9.0. The results showed that stress corrosion could be very serious problem when it comes to long term mining applications. The stress corrosion test cell developed and tested was proved to be significant in conducting the long term stress corrosion tests. The strength results of the Grade 60 rebar roof bolt tested had a significant strength loss after 3 months of testing in the stress corrosion cell. Hence, more SCC studies are deemed necessary to evaluate the seriousness of the problem and if possible eliminate it.

Download or read book Injuries Associated with Roof Or Rib Bolting and Bolting Machines in Underground Coal Mines 1978 1982 written by Shirley A. Quisenberry and published by . This book was released on 1977 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mining Roof Bolting Machine Safety written by Dean H. Ambrose and published by Createspace Independent Publishing Platform. This book was released on 2005-05-31 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report examines the boom arm vertical speed for roof bolting machines to study a moving boom arm appendage at different speeds during different work scenarios. The goal of this study is to determine the impact of the appendage speed on the likelihood of the operator's hand, arm, head, or leg making contact, such as touching the moving appendage. The overall research goal is to reduce workers' risks to injury from exposure to underground mining machinery.

Download or read book Coal Mine Roof and Rib Control written by and published by . This book was released on 1991 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1976 with total page 1814 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Accidents from Falls of Roof and Coal in Bituminous coal Mines Coal mine Accident prevention Course written by United States. Mines Bureau and published by . This book was released on 1958 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1983 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mine Safety and Health Publications written by United States. Mine Safety and Health Administration and published by . This book was released on 1978 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: