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| 1 | Green coal mining technique integrating mining-dressing-gas draining-backfilling-mining显示文摘Aiming to address the following major engineering issues faced by the Pingdingshan No. 12 mine:(1) difficulty in implementing auxiliary lifting because of its depth(i.e., beyond 1000 m);(2) highly gassy main coal seam with low permeability;(3) unstable overlying coal seam without suitable conditions for implementing conventional mining techniques for protective coal seam; and(4) predominant reliance on ‘‘under three' coal resources to ensure production output. This study proposes an integrated, closed-cycle mining-dressing-gas draining-backfilling-mining(MDGBM) technique. The proposed approach involves the mining of protective coal seam, underground dressing of coal and gangue(UDCG), pressure relief and gas drainage before extraction, and backfilling and mining of the protected coal seam. A system for draining gas and mining the protective seam in the rock stratum is designed and implemented based on the geological conditions. This system helps in realizing pressure relief and gas drainage from the protective seam before extraction. Accordingly, another system, which is connected to the existing production system, is established for the UDCG based on the dense medium-shallow trough process. The mixed mining workface is designed to accommodate both solid backfill and conventional fully mechanized coal mining, thereby facilitating coal mining, USCG, and backfilling. The results show that: The mixed mining workface length for the Ji15-31010 protected seam was 220 m with coal production capacity 1.2 million tons per year, while the backfill capacity of gangue was 0.5 million tons per year. The gas pressure decreased from 1.78 to 0.35 MPa, and the total amount of safely mined coal was 1.34 million tons. The process of simultaneously exploiting coal and draining gas was found to be safe, efficient, and green.This process also yielded significant economic benefits. | Zhang Jixiong Zhang Qiang Spearing A.J.S.(Sam) Miao Xiexing Guo Shuai Sun Qiang | 2017 | International Journal of Mining Science and Technology2017，27，1： | 14 |
| 2 | Mechanical performance of rock bolts under combined load conditions显示文摘Rock bolts are subjected to different loading conditions along their lengths such as axial,bending,and/or shear forces,which can cause failure at lower loads than those considered for design purposes.The common existing methodologies do not consider the actual loading of the rock bolts and assume it is only pure axial or pure shear.This study was conducted to investigate the un-grouted rock bolt performance under combined load conditions.Two loading regimes were evaluated:the effect of initial shear displacement on axial load capacity and displacement,and the effect of axial displacement on the shear load capacity.The first regime was also conducted for shear with a gap,when there is a spacing between the shear interfaces.The results of this study showed that the rock bolt can resist higher axial loads than shear under pure or combined load conditions.Under combined load conditions,the rock bolt capacity decreased significantly for both regimes.However,when applying the shear load with a gap,the rock bolt load capacity was not affected significantly.Also,the total bar deformation was improved for shear and axial.The findings of this study show the need to improve the rock bolt design considering the complex loading conditions in situ with/without a gap. | P.C.Pinazzi A.J.S.(Sam)Spearing K.V.Jessu P.Singh R.Hawker | 2020 | International Journal of Mining Science and Technology2020，30，2： | 3 |
| 3 | Research into stope roof control of compound roof by solid backfilling mining显示文摘Based on the analysis of the failure characteristics and backfilling effect of the compound roof at 1801 backfilling workface in Taiyuan coal mine,China,we propose a method of controlling the presubsidence of a compound roof by using pre-stressed bolts to improve the backfilling ratio of the workface so as to maintain the global stability of the stope roof.In addition,PHASE simulation software was employed to analyze the influence law of pre-stressing force,length,and interval on roof subsidence at the workface.On the basis of the numerical simulation results,a model for calculating the pre-stressing force and length of the bolts,the interval between the bolts,as well as roof subsidence at the workface,was established by using SPSS regression analysis software.Moreover,the research results were applied successfully to the 1801 filling workface.According to the monitoring data of roof closure,it was found that the final subsidence value for the goaf roof was 350 mm and the filling ratio at the workface was 86%,which could fully meet the demand for safety production at the workface.The safe and effective control of the stope roof was therefore realized,which achieves the goal of safe and efficient backfilling mining under a compound roof. | Gao Rui Zhang Jixiong Spearing A.J.S. Li Meng An Baifu Hao Deyong | 2016 | International Journal of Mining Science and Technology2016，26，4： | 3 |
| 4 | 继发于视网膜圆形裂孔的视网膜脱离的临床特点及手术方式 | Ung T. Comer M.B. Ang A.J.S. M.P. Snead 王大江 | 2005 | 世界核心医学期刊文摘(眼科学分册)2005，0，10： | 2 |
| 5 | Simultaneous formation of nanocrystalline and <100> textured and {111} facet dominated microcrystalline diamond films using CH 4 /H 2 /O 2 plasma显示文摘 | C.J. Tang A.J.S. Fernandes X.F. Jiang J.L. Pinto | 2011 | Diamond & Related Materials2011，，： | 1 |
| 6 | Effect of microwave power and nitrogen addition on the formation of {100} faceted diamond from microcrystalline to nanocrystalline显示文摘 | C.J. Tang A.J.S. Fernandes F. Costa J.L. Pinto | 2011 | Vacuum2011，，12： | 1 |
| 7 | Multiprobe chloride sensor for in situ monitoring of reinforced concrete structures显示文摘 | M.F. Montemor J.H. Alves A.M. Sim?es J.C.S. Fernandes Z. Louren?o A.J.S. Costa A.J. Appleton M.G.S. Ferreira | 2006 | Cement and Concrete Composites2006，，3： | 1 |
| 8 | Self-assembled cones of aligned carbon nanofibers grown on wet-etched Cu foils显示文摘 | D. Mata M. Amaral A.J.S. Fernandes F.J. Oliveira P.M.F.J. Costa R.F. Silva | 2011 | Carbon2011，，7： | 1 |
| 9 | A new chemical path for fabrication of nanocrystalline diamond films显示文摘 | C.J. Tang A.J. Neves José Grácio A.J.S. Fernandes M.C. Carmo | 2007 | Journal of Crystal Growth2007，，2： | 1 |
| 10 | Wet-etched Ni foils as active catalysts towards carbon nanofiber growth显示文摘 | D. Mata M. Ferro A.J.S. Fernandes M. Amaral F.J. Oliveira P.M.F.J. Costa R.F. Silva | 2010 | Carbon2010，，10： | 1 |
| 11 | HFCVD diamond deposition parameters optimized by a Taguchi Matrix显示文摘 | E. Salgueiredo M. Amaral M.A. Neto A.J.S. Fernandes F.J. Oliveira R.F. Silva | 2010 | Vacuum2010，，6： | 1 |
| 12 | Dietary red palm oil improves reperfusion cardiac function in the isolated perfused rat heart of animals fed a high cholesterol diet显示文摘 | A.J. Esterhuyse E.F. du Toit A.J.S. Benadè J. van Rooyen | 2004 | Prostaglandins Leukotrienes and Essential Fatty Acids (PLEFA)2004，，3： | 1 |
| 13 | Kinetic modelling of reactions in heated disaccharide–casein systems显示文摘 | Carline M.J. Brands Martinus A.J.S. van Boekel | 2003 | Food Chemistry2003，，1： | 1 |
| 14 | Machining hardmetal with CVD diamond direct coated ceramic tools: effect of tool edge geometry显示文摘 | F.A. Almeida F.J. Oliveira M. Sousa A.J.S. Fernandes J. Sacramento R.F. Silva | 2004 | Diamond & Related Materials2004，，3： | 1 |
| 15 | A kinetic model for the glucose/glycine Maillard reaction pathways显示文摘 | Sara I.F.S. Martins Martinus A.J.S. Van Boekel | 2004 | Food Chemistry2004，，1： | 1 |
| 16 | Assessment of Food Safety Management Systems in the global fresh produce chain显示文摘 | Klementina Kirezieva Liesbeth Jacxsens Mieke Uyttendaele Martinus A.J.S. Van Boekel Pieternel A. Luning | 2013 | Food Research International2013，，1： | 1 |
| 17 | Kinetics of the glucose/glycine Maillard reaction pathways: influences of pH and reactant initial concentrations显示文摘 | Sara I.F.S. Martins Martinus A.J.S. Van Boekel | 2004 | Food Chemistry2004，，3： | 1 |
| 18 | Red light from ZrO 2 :Eu 3+ nanostructures显示文摘 | M.R.N. Soares C. Nico D. Oliveira M. Peres L. Rino A.J.S. Fernandes T. Monteiro F.M. Costa | 2011 | Materials Science & Engineering B2011，，10： | 1 |
| 19 | Keeping in Touch: Responses of the Whole Plant to Deficits in Water and Nitrogen Supply显示文摘 | A.J.S. McDonald W.J. Davies | 1996 | Advances in Botanical Research1996，，： | 1 |
| 20 | Using neural networks to predict spatial structure in ecological systems显示文摘 | M.J. Aitkenhead M.J. Mustard A.J.S. McDonald | 2004 | Ecological Modelling2004，，3： | 1 |
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