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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 | The estimation of NMVOC emissions from an urban-scale wastewater treatment plant显示文摘 | ELIF A TUNCAY D SERAP K | 2004 | Water Research2004，38，1415： | 1 |
| 3 | Explicit solutions to the Korteweg-de Vries equation on the half line 显示文摘 | TUNCAY A CO RNELIS V D M | 2006 | Inverse Problems2006，22，： | 1 |
| 4 | Involvement of tyrosine ki- nase pathway in acute hypoxic vasoconstriction in sheep iso- lated pulmonary vein显示文摘 | Uzun O Tuncay Demiryurek A | 2003 | Vascul Pharmacol2003，40，3： | 1 |
| 5 | An analysis of C-reactive protein,procalcitonin,and D-dimer in pre-eclamptic patients显示文摘 | Kucukgoz Gulec U Tuncay Ozgunen F Baris Guzel A etal | 2012 | Am J Reprod Immu-nol2012，68，4： | 1 |
| 6 | An analy- sis of C - reactive protein, procalcitonin, and D - dimer in pre - eclamptic patients显示文摘 | Kucukgoz Gulec U Tuncay Ozgunen F Bails Guzel A | 2012 | Am J Reprod Immunol2012，68，4： | 1 |
| 7 | An analysis of C-reactive protein,procalcitonin,and D-dimer in pre- eclamptic patients 显示文摘 | Kucukgoz Gulec U Tuncay Ozgunen F Baris Guzel A | 2012 | Am J Reprod Immunol2012，68，4： | 1 |
| 8 | Synthesis of fused-ring cyclobutenones via a tandem cyeloaddition-beta-elimination sequence显示文摘 | George B Trimitsis A Tuncay R D Beyer | 1978 | J Org Chem1978，58，： | 1 |
| 9 | Intracellular free zinc during cardiac excitation-contraction cycle:calcium and redox dependencies显示文摘 | Tuncay E Bilginoglu A Sozmen NN | 2010 | Cardiovascular Research2010，89，3： | 1 |
| 10 | International- isation of R&D into emerging markets: Fiat's R&D in Brazil, Turkey and India 显示文摘 | Athreye S Tuncay - Celikel A Ujjual V | 2014 | Long Range Planning2014，47，1： | 1 |
| 11 | An analysis of C-reactive protein, procalcitonin,and D-dimer in pre- eclamptic patients显示文摘 | Kucukgoz Gulec U Tuncay Ozgunen F Baris Guzel A | 2012 | Am J Reprod Immunol2012，68，4： | 1 |
| 12 | Antioxidants but not doxycycline treatments restore depressed beta-adrenergic responses of the heart in diabetic rats显示文摘 | Bilginoglu A Seymen A Tuncay E | 2009 | Cardiovasc Toxicol2009，9，1： | 1 |
| 13 | Ondansetron, orallydisintegrating tablets versus intravenous injection for preventionof intrathecal morphine-induced nausea, vomiting, andpruritus in young males 显示文摘 | Pirat A Tuncay SF Torgay A | 2005 | Anesth Analg2005，101，： | 1 |
| 14 | Ferrous iron-induced luminol chemiluminescence:a method for hydroxyl radical study显示文摘 | GüLüZAR YILDIZ TUNCAY DEMIRYüREK A | 1998 | Journal of Pharmacological and Toxicological Methods1998，39，3： | 1 |
| 15 | Failure, memory, and cyclic fault movement 显示文摘 | TUNCAY K KHALIL A PETER J | 2001 | Bulletin of the Seismological Society of America2001，91，3： | 1 |
| 16 | Evaluation of debris extruded apically during the removal of root canal filling material using Pro Taper,D-Ra Ce,and R-Endo rotary nickel-titanium retreatment instruments and hand files显示文摘 | Topuoglu HS Akt A Tuncay | 2014 | J Endod2014，40，12： | 1 |
| 17 | Open surgical exploration of failed endopyelotomy: A12-year perspective 显示文摘 | Gupta O Tuncay O L Smith A D | 1997 | J Urol1997，157，： | 1 |
| 18 | Comparison between fixation with Herbert screws and Kirschner wires in the treatment of scaphoid pseudoarthosis显示文摘 | Tuncay I Dogan A Alpaslan S | 2002 | Acta Orthop Traumatol Turc2002，36，1： | 1 |
| 19 | An anal- ysis of C-reactive protein, procalcitonin, and D-dimer in pre-eclamptic patients显示文摘 | Kucukgoz Gulec U Tuncay Ozgunen F Baris Guzel A | 2012 | Am J Reprod Immunol2012，68，4： | 1 |
| 20 | Involvement of tyrosine kinase pathway in acute hypoxic vasoconstriction in sheep isolated pulmonary vein 显示文摘 | UZUN O TUNCAY DEMIRYUREK A | 2003 | Vascul Pharmacol2003，40，3： | 1 |
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