منابع مشابه
The Introduction of Roof Bolting to U.s. Underground Coal Mines (1948-1960): a Cautionary Tale
Perhaps the most significant development in coal mine ground control during the last century was the introduction of roof bolting during the late 1940’s and 1950’s. From an engineering standpoint, roof bolts are inherently more effective than the wood timbers they replaced. Roof bolts promised to dramatically reduce the number of roof fall accidents, which then claimed hundreds of lives each ye...
متن کاملThe evolution of drill bit and chuck isolators to reduce roof bolting machine drilling noise
Among underground coal miners, hearing loss remains one of the most common occupational illnesses. To address this problem, the U.S. National Institute for Occupational Safety and Health Office of Mine Safety and Health Research (NIOSH OMSHR) conducts research to reduce the noise emission of underground coal mining equipment, an example of which is the roof bolting machine. Field studies show t...
متن کاملA Noise Control for a Roof Bolting Machine: Collapsible Drill Steel Enclosure
The National Institute for Occupational Safety and Health (NIOSH) at the Pittsburgh Research Laboratory (PRL) is conducting research to reduce the noise exposures of roof bolting machine operators and to prevent additional cases of Noise Induced Hearing Loss (NIHL) thru the development of engineering noise controls. This paper describes and evaluates an engineering noise control for the roof bo...
متن کاملComputer simulations help determine safe vertical boom speeds for roof bolting in underground coal mines.
PROBLEM Incident investigation reports do not usually contain enough information to aid in studying boom arm vertical speed for roof bolting machines to determine the impact that appendage speed had on an operator's risk of experiencing a contact. Laboratory experiments with human subjects are also not feasible because of safety and ethical issues. METHOD Researchers successfully developed a ...
متن کاملVisual feedback system to reduce errors while operating roof bolting machines.
PROBLEM Operators of roof bolting machines in underground coal mines do so in confined spaces and in very close proximity to the moving equipment. Errors in the operation of these machines can have serious consequences, and the design of the equipment interface has a critical role in reducing the probability of such errors. METHODS An experiment was conducted to explore coding and directional...
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ژورنال
عنوان ژورنال: Scientific Bulletin of National Mining University
سال: 2018
ISSN: 2071-2227,2223-2362
DOI: 10.29202/nvngu/2018-1/18