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| 1 | Investigating different methods used for approximating pillar loads in longwall coal mines显示文摘Accurately estimating load distributions and ground responses around underground openings play a significant role in the safety of the operations in underground mines.Adequately designing pillars and other support measures relies highly on the accurate assessment of the loads that will be carried by them,as well as the load-bearing capacities of the supports.There are various methods that can be used to approximate mining-induced loads in stratified rock masses to be used in pillar design.The empirical methods are based on equations derived from large databases of various case studies.They are implemented in government approved design tools and are widely used.There are also analytical and numerical techniques used for more detailed analysis of the induced loads.In this study,two different longwall mines with different panel width-to-depth ratios are analyzed using different methods.The empirical method used in the analysis is the square-decay stress function that uses the abutment angle concept,implemented in pillar design software developed by the National Institute for Occupational Safety and Health(NIOSH).The first numerical method used in the analysis is a displacement-discontinuity(DD)variation of the boundary element method,LaModel,which utilizes the laminated overburden model.The second numerical method used in the analysis is Fast Lagrangian Analysis of Continua(FLAC)with the numerical modeling approach recently developed at West Virginia University which is based on the approach developed by NIOSH.The model includes the 2D slice of a cross-section along the width of the panel with the chain pillar system that also includes the different stratigraphic layers of the overburden.All three methods gave similar results for the shallow mine,both in terms of load percentages and distribution where the variation was more obvious for the deep cover mine.The FLAC3D model was observed to better capture the stress changes observed during the field measurements for both the shallow and deep cover cases.This study allowed us to see the shortcomings of each of these different methods.It was concluded that a numerical model which incorporates the site-specific geology would provide the most precise estimate for complex loading conditions. | Deniz Tuncay a Ihsan Berk Tulu a Ted Klemetti | 2021 | International Journal of Mining Science and Technology2021，31，1： | 2 |
| 2 | Ignition and combustion of aluminum/mag nesium alloy particles in O2 at high pressures显示文摘 | Ted A R Rodney L B | | Combustion and Flame0，92，： | 2 |
| 3 | Adipocyte iron regulates adiponectin and insulin sensitivity显示文摘 | Gabrielsen J Scott Gao Yan Simcox Judith A Huang Jingyu Thorup David Jones Deborah Cooksey Robert C Gabrielsen David Adams Ted D Hunt Steven C Hopkins Paul N Cefalu William T McClain Donald A | 2012 | EN2012，，10： | 2 |
| 4 | Coronary artery bypass graft surgery versus percutaneous coronary intervention in patients with three-vessel disease and left main coronary disease: 5-year follow-up of the randomised, clinical SYNTAX trial显示文摘 | Friedrich W Mohr Marie-Claude Morice A Pieter Kappetein Ted E Feldman Elisabeth St?hle Antonio Colombo Michael J Mack David R Holmes Marie-angèle Morel Nic Van Dyck Vicki M Houle Keith D Dawkins Patrick W Serruys | 2013 | The Lancet . 2013 (9867)2013，，9867： | 2 |
| 5 | C3d enhancement of antibodies to hemagglutinin accelerates protection against influenza virus challenge显示文摘 | Ted M Ross Yan Xu Rick A | 2000 | Nature immumology2000，1，2： | 1 |
| 6 | Maryland's Green Infrastructure Assessment: Development of a comprehensive approach to land conservation显示文摘 | TED W SLOAN A | | Landscape and Urban Planning0，77，12： | 1 |
| 7 | Control of a doubly fed induction wind generator under unbalanced grid voltage conditions 显示文摘 | TED K A NED M | 2007 | IEEE Transaction on Energy Conversion2007，22，1： | 1 |
| 8 | Biological control of waterhyacinth in Sinaloa Mexico with the weevils Neochetina eichhomiae and N bruchi显示文摘 | Aguilar J A Camarena O M Ted D | 2003 | Biocontrol2003，48，5： | 1 |
| 9 | Analysis and extensions of the Frankle-McCann retinex algorithm 显示文摘 | Ted J C Farhan A B | 2004 | Journal of Electronic Image2004，13，1： | 1 |
| 10 | Hydraulic conductivity of porous media at low water content显示文摘 | Toledo Pedro G Novy Robert A Davis H Ted | 1990 | Soil Sci Soc Am J1990，54，： | 1 |
| 11 | A Multifeature Decision Space Approach to Radar Target Identifiea- tion显示文摘 | Ted J G Gorman R P Berger W A | 1996 | IEEE Trans on Aerospace and Electronic Sys*ems1996，32，1： | 1 |
| 12 | , a critical role of IRF-I显示文摘 | JARUGA B HONG F KIM W H et aL IFN-gamma/ STAT 1 acts as a proinflamrnatory signal in T cell-media- ted hepatitis via induction of multiple chemokines and ad- hesion molecules | 2004 | Am J Physiol Gastrointest Liver Physiol2004，287，： | 1 |
| 13 | A method for dynamic crack and shear band propagation with phantom nodes显示文摘 | Jeong-Hoon Song Pedro M A Areias Ted Belytschko | 2006 | International Journal for Numerical Methods in Engineering2006，67，： | 1 |
| 14 | Measuring core stability显示文摘 | Wendell P Liemhn Ted A Baumgartner Laura H Gagnon | 2005 | J Strength CondRes2005，19，3： | 1 |
| 15 | Tribological behavior of a- luminum/SiC/nickel-coated graphitehybrid composites显示文摘 | Ted Guo M L Tsao Chi-Y A | 2002 | Mate- rials Science and Engineering2002，333，： | 1 |
| 16 | Optimal energy storage sizing and control for wind power applications 显示文摘 | Ted K A Brekken Alex Yokoehi Annette Von Jouanne | 2011 | IEEE Transaction on Sustainable Energy2011，3，32： | 1 |
| 17 | Coronary artery bypass graft surgery versus percutaneous coronary intervention in patients with three-vessel disease and left main coronary disease: 5-year follow-up of the randomised, clinical SYNTAX trial显示文摘 | Friedrich W Mohr Marie-Claude Morice A Pieter Kappetein Ted E Feldman Elisabeth St?hle Antonio Colombo Michael J Mack David R Holmes Marie-angèle Morel Nic Van Dyck Vicki M Houle Keith D Dawkins Patrick W Serruys | 2013 | The Lancet2013，，9867： | 1 |
| 18 | Adsorption studies of natural gas storage in Devonian shales显示文摘 | Xiao Chun L Fan Chang L Ted W A | | 0，，02： | 1 |
| 19 | Wind erosion quantity and quality of an Entic Haplustoll of the semi-arid pampas of Argentina显示文摘 | BUSCHIAZZO Daniel E ZOBECK Ted M ABASCAL Sergio A | 2007 | Journal of Arid Environments2007，，： | 1 |
| 20 | A stochastic frontier analysis of technical progress, efficiency change and productivity growth in the Pacific Northwest sawmill industry 显示文摘 | TED L H DARIUS M A | 2009 | Forest Policy and Economics2009，11，4： | 1 |
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