- Body parts
- Diseases and injuries
- Equipment, tools, and parts
- Hazard prevention and control
- Hazards and exposures
- Mine locations, excavations, and structures
- Mining types and methods
- Population groups
- Products and materials
- Research disciplines
- Research methods and measures
- Tasks and activities
- Document types
Results 51 - 60 of 82
8/1/2006 - Information CircularsThis trainer's guide is designed as a reference manual. The purpose is to offer information and examples to skills trainers to assist them in structuring training for new operators of Walk-Thru roof bolting machines.
1/1/2006 - Peer reviewed journal articlesNIOSH initiated a study of a roof bolter to reduce noise exposure to mine roof bolter operators. When drilling into granite, it was found that wet drilling generated lower sound power levels and performed better than vacuum drilling.
Computer Simulations Help Determine Safe Vertical Boom Speeds for Roof Bolting in Underground Coal Mines10/1/2005 - Peer reviewed journal articlesNIOSH researchers successfully developed a computer model that generates contact data by means of simulation while exercising the model with several variables associated with the machine and its operator.
5/1/2005 - Information CircularsThis 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 likeliho...
Reducing Enclosed Cab Drill Operator's Respirable Dust Exposure with Effective Filtration and Pressurization Techniques1/1/2005 - Peer reviewed journal articlesDiscusses a cooperative research effort to lower respirable dust levels in an enclosed cab on an older surface drill at a silica sand operation. A number of modifications were incorporated into the drill's filtration and pressurization system, as well a...
Assessment of Noise Controls Commonly Used on Jumbo Drills and Bolters in Western United States Underground Metal Mines1/1/2005 - Peer reviewed journal articlesThe noise-control treatments most commonly observed on drills and bolters during this study were evaluated on machines at underground metal mines to determine the amount of noise reduction achieved by each control.
11/1/2004 - Information CircularsThis instructor's manual supplements the Wearing Hearing Protection Properly 3-D training reel. It offers tips on using the reel as a training aid, assessing training needs, and discussion notes that provide additional information to the user.
1/1/2003 - Conference papersComputer human modeling was used to examine machine appendage speed. The objective was to determine the impact of roof bolter machine appendage speed on the likelihood of the operator coming in contact with the appendage.
Roof screening has been found to be very effective in controlling the fall of small rocks from the immediate roof surface. Data is presented from two mines that show a dramatic reduction in roof skin injuries when screening is used.
7/1/2002 - Reports of InvestigationsThe process of drilling and bolting the roof is currently one of the most dangerous jobs in underground mining, resulting in about 1,000 accidents with injuries each year in the United States. Researchers from the Spokane Research Laboratory of the Nat...