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56篇 您的检索式:作者名="Tannant"
    题名 作者 年代 出处 被引量
1深凹露天转地下开采高陡边坡变形与破坏规律显示文摘以大冶铁矿为工程背景,采用相似材料模型实验和数值模拟计算相结合的方法,对深凹露天转地下开采高陡边坡的变形和破坏规律进行了系统研究.首先,模型相似实验中,采用百分表、压力传感器和近景摄影测量等手段监测模型的应力应变和破坏特征,对围岩位移和破坏裂纹进行系统分析,揭示了高陡边坡的变形和破坏基本规律.其次,采用有限差分软件,从地表沉降量、应力值变化和塑性区分布等方面与相似材料实验结果进行了对比分析.结果表明,高边坡竖向最大沉降为28.2mm,围岩破坏程度随着开采深度的增加递增,塑性区范围不断扩大,剪切破坏主要集中在两侧边坡的边脚部位.相似模型实验和数值模拟相结合可以较好地揭示深凹露天转地下开采过程中高陡边坡的变形和破坏基本特征,是一种较好的理论研究方法.宋卫东 杜建华 杨幸才 Dwayne D Tannant 2010北京科技大学学报2010,32,2:52
2基于连续-非连续方法的裂隙破坏与相互作用研究显示文摘岩体内裂隙等非连续结构面对岩体的强度及变形等力学特性有着显著的影响,研究岩体裂隙起裂、扩展、相互作用和贯通机制,对工程岩体力学行为的表征和工程性能的评价十分重要。本文基于连续介质力学模型的离散元方法,通过考虑裂隙分布、模型加载条件及其与裂隙产状的关系,建立了一系列裂隙力学计算模型,研究了不同模型裂隙扩展演化特征和岩体破裂机制,分析了岩体裂隙扩展规律及其对岩体破坏路径和强度的影响,研究结果表明:(1)裂隙岩体模型加载条件下的破坏起裂点、最终贯通破坏特征及损伤分布受控于裂隙的产状及其与最大主压应力取向角度大小及围压大小。(2)裂隙弱面走向与最大主压应力取向斜交时,裂隙弱面在加载条件下其端部裂隙扩展、贯通破坏表现比较明显,反之,当裂隙弱面走向与最大主压应力取向一致时,裂隙弱面被动影响裂隙模型内新生裂隙的萌生、扩展和贯通模式,自身未出现新的扩展破坏。(3)裂隙数目的增多和围压的增大会显著增加模型内部剪切裂缝的数量和模型破坏后的破碎程度,模型内部的损伤区域主要围绕破裂面呈滑移线型交叉分布,非破裂面区域损伤呈条带状X型分布。(4)裂隙弱面走向与最大主压应力取向斜交时,裂隙对岩体模型强度的弱化程度高于裂隙弱面走向与最大主压应力取向一致的情况,而裂隙模型破坏后的残余强度则正好相反。赵海军 Dwayne Tannant 郭捷 冯雪磊 马凤山 2019工程地质学报2019,27,5:11
3Determination of fault-related sloughage in open stopes显示文摘Suorineni F T Tannant D D Kaiser P K 1999International Journal of Rock Mechanics and Mining Sciences1999,36,7:1
4Rockbolt behavior under dynamic loading field tests and modeling显示文摘TANNANT D D BRUMMER R K YI X 1995International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts1995,32,6:1
5Rock fracture around a highly stressed tunnel and the impact of a thin tunnel liner for ground control显示文摘WANG C TANNANT D D 2004International Journal of Rock Mechanics & Mining Sciences2004,41,3:1
6Numerical analysis of the stability of heavily jointed rock slope using PFC2D显示文摘C Wang DD Tannant PA Lilly 0,,:1
7Properties of fly ash stabilized haul road const ruction materials显示文摘D D Tannant V Kumar 2000International Journal of Surface Mining Reclamation and Environment2000,14,2:1
8Numerical analysis of the stability of heavily jointed rock slopes using PFC2D 显示文摘Wang C Tannant D D Lilly P A 2003International Jour- nal of Rock Mechanics & Mining Sciences2003,40,:1
9Drift support in burst- prone ground显示文摘Kaiser P K Tannant D D McCreath D R 1996CIM Bulletin1996,89,998:1
10Journal of geotechnical and geoviron:field tests and modeling显示文摘 BRUMMER R K 1995Int J Rock Mech Science & Geomechanics Abstr1995,32,6:1
11Numerical analysis of the stability of heavily jointed rock slopes using PFC2D显示文摘Wang C Tannant D Lilly P 2003International Journal of Rock Mechanics & Mining Sci- ence2003,40,:1
12Rock fracture around a highly stressed tunnel and the impact of a thin tunnel liner for ground control显示文摘C. Wang D.D. Tannant 2004International Journal of Rock Mechanics and Mining Sciences2004,,3:1
13Rock bolt behavior under dynamic loading field test sand modeling显示文摘TANNANT D D BRUMMER R K 1995International Journal of Rock Mechanics and Mining Sciences& Geomechanics Abstracts1995,32,6:1
14Numerical analysis of the stability of heavily jointed rock slopes using PFC2D 显示文摘Wang C Tannant D D Lilly P A 2003International Journal of Rock Mechanics & Mining Sciences2003,40,:1
15Rock fracture around a highly stressed tunnel and the impact of a thin tunnel liner for ground control显示文摘WANG C TANNANT D D 2004Internal Journal of Rock Mechanics & Mining scienccs2004,41,3:1
16Numerical analysis of the stability of heavily jointed rock slopes using PFC2D 显示文摘Wang C Tannant D D Lilly P A 2003International Journal of Rock Mechanics and Mining Sciences2003,40,3:1
17Numerical analysis of the stability of heavily jointed rock slopes using PFC2D显示文摘C Wang D D Tannant P A Lilly 2003Rock Mechanics and Ming Science2003,,40:1
18Rock behaviour under dynamic loading: field tests and modelling显示文摘TANNANT D D BRUMMER R K YI X 1995International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts1995,32,6:1
19Rock fracture around a highly stressed tunnel and the impact of a thin tunnel linear for ground control显示文摘WANG C TANNANT D D 2004International Journal of Rock Mechanics and Mining Sciences2004,41,3:1
20Numerical analysis of the stability of heavily jointed rock slopes using PFC2D显示文摘WANG C TANNANT D D LILLY PA 2003International Journal of Rock Mechanics and Mining Sciences2003,40,:1
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