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345篇 您的检索式:作者名="Fourie"
    题名 作者 年代 出处 被引量
1An analytical solution for evaluating the safety of an exposed face in a paste backfill stope incorporating the arching phenomenon显示文摘In current underground mining, the stability of the exposed backfill face is a basic issue associated with mining design and has been the subject of considerable research in mining safety and efficiency. In this study, an improved analytical solution for evaluating the safety of vertically exposed faces in backfilling was proposed. Based on a differential slice method, the proposed solution emphasizes the arching effect as having the advantages of more rigor and wider scalability. Feasibility of the proposed solution was validated with classic centrifuge results. Good agreement between compared results indicated that the proposed solution skillfully predicts the behavior of the paste centrifuge model. Additionally, calculation of exposed face safety in sequential filling was presented. The proposed solution has practical significance in mine backfill design.Xu Zhao Andy Fourie Chong-chong Qi 2019International Journal of Minerals,Metallurgy and Materials2019,26,10:10
2Mechanics and safety issues in tailing-based backfill:A review显示文摘Voids(referred to as 'stopes') are generally created during underground mining activities and can lead to both local and regional geotechnical instabilities. To assist in managing the stability of mining-related voids and improving the recovery of orebodies, tailing-based backfill technology has been widely used around the world. In the design of tailing-based backfill strategy, the specific function and engineering requirements of the filling are intimately dependent on the stress distribution within the backfilled stope. In this paper, the main mechanics involved in tailing-based backfill in underground mines, which include arching, consolidation, hydration process, and movement of surrounding rocks, are reviewed. Research on the safety of a barricade and stability of an exposed fill face are also presented. In conclusion, the backfilling process should be performed on the basis of a better understanding of the complicated interactions of the mechanisms of filling, consolidation, and hydration process(when cement is added).Xu Zhao Andy Fourie Chong-chong Qi 2020International Journal of Minerals,Metallurgy and Materials2020,27,9:6
3大数据时代的交通模型显示文摘通过新的大数据来源诸如手机通信记录、智能卡数据以及社交媒体地理编码记录,可以前所未有地观察和了解出行行为的细节。尽管有如此庞大的大数据来源,但在规划实践中使用的交通需求模型,其数据源仍大多来自交通调查和人口普查等传统方法。对近期利用大数据研究交通行为,以及使交通规划师可以进行假设情景分析的交通需求模型的最新进展进行梳理。从出行识别到出行活动推理,回顾和分析现有数据分析方法,这些传统方法使收集到的出行轨迹信息能响应交通需求模型。未来的研究应该侧重将概率模型和机器学习技术应用于数据科学。设计这些数据挖掘方法是为了处理由手机移动追踪数据衍生的零散和掺杂偏差的数据的不确定性。此外,这些方法还适用于将不同的相关数据组整合到一个数据融合方案中,以便用出行日志信息丰富大数据。总之,建模知识已经在交通运输领域发展成熟,因此强烈建议在交通规划方面应用数据驱动方法时应建立相应领域专业知识的基础。这些新的挑战呼吁交通模型师和数据科学家之间的多学科协作。Cuauhtemoc Anda Alexander Erath Pieter Jacobus Fourie(著) 宗晶(译) 2019城市交通2019,17,3:5
4System dynamic modelling to assess economic viability and risk trade-offs for ecological restoration in South Africa显示文摘D.J. Crookes J.N. Blignaut M.P. de Wit K.J. Esler D.C. Le Maitre S.J. Milton S.A. Mitchell J. Cloete P. de Abreu H. Fourie (nee Vlok) K. Gull D. Marx W. Mugido T. Ndhlovu M. Nowell M. Pauw A. Rebelo 2013Journal of Environmental Management2013,,:2
5Linear theory of gyrotron traveling wave tubes with nonuniform and lossy interaction structures显示文摘Kou C S Fouries T 1998Phys Plasmas1998,5,6:1
6Empowering users- current awareness on the Internet显示文摘Fourie I 1999Electron Libr1999,17,6:1
7Cloning and sequencing of the PIF gene involved in repair and recombination of yeast mitochondrial DNA 显示文摘Foury F Lahaye A 1987EMBO1987,6,5:1
8Effects of the scab mite Psoroptes ovis on the haematology and live mass of Merino and Dorper sheep显示文摘Meintjes T Fourie L J Horak I G 2002The Onderstepoort Journal of Veterinary Research2002,69,4:1
9Static liquefac- tion a possible explanation for the Merriespruit tailings dam failures 显示文摘Fourie A B Blight G E Papageorgiou G 2001Canadian Geotechnical Journal2001,38,:1
10Evaluation and comparison of postero-anterior cephalograms and cone-beam computed tomography images for the detection of mandibular asymmetry显示文摘Damstra J Fourie Z Ren YJ 0,,:1
11Accuracy and reliability of facial soft tissue depth measurements using cone beam computer tomography显示文摘Fourie Z Damstra J Gerrits PO 0,,1:1
12The particle swarm optimization algorithm in size and shape optimization显示文摘Fourie P C Groenwold A A 2002Structural and Multidisciplinary Optimization2002,23,4:1
13HSP70 binding sites in the tumor suppressor protein P53显示文摘Fourie A M Hupp T R Lane D P el a1 1997J Biol Chem1997,272,19:1
14Numerical modeling of cemented mine backfill deposition显示文摘Helinski M Fahey M Fourie A 0,,10:1
15Consolidation in accreting sediments:Gibson's solution applied to backfilling of mine stopes显示文摘Fahey M Helinski M Fourie A 2010Géotechnique2010,,11:1
16The effects of infiltr-ation on the stability of a dry ash dump显示文摘FOURIE A B ROWE D BLIGHT G H 1999Gé otechnique1999,49,1:1
17In vitro effect of pulsed 900 MHz GSM radiation on mitochondrial membrane potential and motility of human spermatozoa 显示文摘Falzone N Huyser C Fourie F 2008Bioelectromagnetics2008,29,4:1
18Botox and the management of pectoral spasm after subpectoral implant insertion 显示文摘Senior MA Fourie LR 2000Plast Reconstr Surg2000,106,:1
19Loss of trace elements during dehydration of marine 显示文摘Fourie H O Peisch M 1977Zoological Material Analyst1977,102,:1
20Development of specimen curing procedures that account for the influence of effective stress during curing on the strength of cemented mine backfill显示文摘Fahey M Helinski M Fourie A 0,,:1
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