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https://www.cdc.gov/niosh/mining/topics/RoofSupport.html
Sep 22, 2015 · The load-displacement characteristics of the standing support systems are determined in the NIOSH Mining Mine Roof Simulator (MRS). Intrinsic Roof Support – An empirically based software package, Analysis of Roof Bolt Systems (ARBS), has been developed to assist in design of roof bolt systems in coal mines.
https://www.researchgate.net/publication/265886035_FUNDAMENTALS_OF_COAL_MINE_ROOF_SUPPORT
The Coal Mine Roof Rating (CMRR) was developed by the U.S. Bureau of Mines as an engineering tool to quantify descriptive geologic information for use in coal mine design and roof support selection.
https://stacks.cdc.gov/view/cdc/8300/cdc_8300_DS1.pdf
FUNDAMENTALS OF COAL MINE ROOF SUPPORT By Christopher Mark, Ph.D.,1 and Thomas M. Barczak2 ABSTRACT Roof supports can only be understood in conjunction with the rock structure that they support. The strength of the rock depends on geology, and the loads are applied primarily by the in situ and mining-induced stresses.
https://www.cdc.gov/niosh/mining/UserFiles/works/pdfs/daaot.pdf
The Coal Mine Roof Rating (CMRR) was developed 10 years ago to fill the gap between geologic characteriza-tion and engineering design. It combines many years of geologic studies in underground coal mines with world-wide experience with rock mass classification systems. Like other classification systems, the CMRR begins with
http://s7d2.scene7.com/is/content/Caterpillar/C841089
Two-meter-wide roof supports Customized Design: Roof Support Systems Caterpillar is the world leader in longwall roof support technology. In the early 1970s, demanding mining conditions in German coal mines set the stage for extensive R&D in roof support technology. Steeply inclined
https://www.jennmar.com/Product-Category-Coal-Mining
The JM CABLE Fully Grouted Cable Bolt is proven to be a very versatile roof support due to its ability to control many different ground conditions, from increasing the lifespan of standard cable bolt supports in long-term main entry systems to stopping the ingress of water.
https://ro.uow.edu.au/cgi/viewcontent.cgi?article=2216&context=coal
2015 Coal Operators’ Conference The University of Wollongong 11 –13 February 2015 103 RISK-BENEFIT ANALYSIS IN COAL MINE ROOF SUPPORT DESIGN USING STOCHASTIC MODELLING TECHNIQUE Hongkui Gong 1 1, Ismet Canbulat2, Mehmet S Kizil1, Anna Mills3 and Jason Emery3 ABSTRACT: Various roof support design methodologies have been used in Australian coal mines,Cited by: 1
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