期刊文献+

Bolt support mechanism based on elastic theory 预览 被引量:1

Bolt support mechanism based on elastic theory
在线阅读 下载PDF
收藏 分享 导出
摘要 Mechanical model of anchorage surrounding rock considering tray effect was established based on elastic theory,in order to study the mechanism of bolt supporting.Elastic solutions of normal force at point in the interior of a semi-infnite solid were obtained by means of classical displacement function method in elasticity.The factors which influence stress of bolted surrounding rock,such as the length of bolt and tray effect,were analyzed.The absolute value of stress along bolt axes decreased rapidly with an increase in radical distance and the maximum appeared near ends of bolt.With increasing radical distance,the value of radical stress changed from positive to negative roughly and then increased to zero,with maximum at the middle of bolt.The evolution of hoop stress as radical distance increasing was similar with stress along bolt axes.With an increase in depth,the radical effect ranges of all normal stress components were reduced.These suggest that the effect from tray on stress along bolt axes of bolted surrounding rock could be neglected,except near surface of surrounding rock. Mechanical model of anchorage surrounding rock considering tray effect was established based on elastic theory,in order to study the mechanism of bolt supporting.Elastic solutions of normal force at point in the interior of a semi-infnite solid were obtained by means of classical displacement function method in elasticity.The factors which influence stress of bolted surrounding rock,such as the length of bolt and tray effect,were analyzed.The absolute value of stress along bolt axes decreased rapidly with an increase in radical distance and the maximum appeared near ends of bolt.With increasing radical distance,the value of radical stress changed from positive to negative roughly and then increased to zero,with maximum at the middle of bolt.The evolution of hoop stress as radical distance increasing was similar with stress along bolt axes.With an increase in depth,the radical effect ranges of all normal stress components were reduced.These suggest that the effect from tray on stress along bolt axes of bolted surrounding rock could be neglected,except near surface of surrounding rock.
作者 Guo, Xiaoqian Mao, Xianbiao Ma, Chao Huang, Jinglong Guo Xiaoqian[1] Mao Xianbiao[1] Ma Chao[1] Huang Jinglong[2]
出处 《矿业科学技术学报:英文版》 EI 2013年第4期共6页 International Journal of Mining Science and Technology
基金 This research is supported by the Special Funds of the National Natural Science Foundation of China,the National Natural Science Foundation of China,the Universities Natural Science Research Project of Jiangsu Province
Elastic theory Bolt support Displacement function method Stress along bolt axes
  • 相关文献

参考文献15

  • 1Lu SL;Tang L;Yang XA.Anchorage force and technology of bolt[M]北京:煤炭工业出版社,1981. 被引量:1
  • 2Tan XN,Qin H. Numerical simulation of flat-roofed tunnel-bolting support mechanism[J].J Hebei Inst Technol,2005,(03):1-5.doi:10.3969/j.issn.1674-0262.2005.03.001. 被引量:1
  • 3Cao Z,Pu ZX,Liu DL. Study on the support system of very thick coal roadway designing[J].Shandong Coal Technol,2008,(03):22-23.doi:10.3969/j.issn.1005-2801.2008.03.015. 被引量:1
  • 4Hou CJ;Guo LS;Gou PF.Bolt support technology of roadway[M]徐州:中国矿业大学出版社,1999. 被引量:1
  • 5Hyet AI,Bawden WF,Reichert RD. The effect of rock mass confinement on the bond strength of fully grouted cable bolts[J].Int J Rock Mech Min Sic Genomic,1992,(05):503-524. 被引量:1
  • 6Goto Y. Gracks formed in concrete around deformed tension bars[J].Journal of the American Concrete Institute,2010,(04):224-251. 被引量:1
  • 7Hansor NW. Influence of surface roughness of prestressing strand on band performance[J].Journal of the American Concrete Institute,1969,(01):32-45. 被引量:1
  • 8Lutz L,Gergeley P. Mechanics of band and slip of deformed bars in concrete[J].Journal of the American Concrete Institute,1967,(11):711-721. 被引量:1
  • 9Wang MS. Study on mechanism of a full-anchorage bolt[J].Journal of China coal society,1983,(01):41-47. 被引量:1
  • 10Dong FT,Song HW,Guo ZH,Lu SM Hang SJ. Theory on support in loose circles of surrounding rock[J].Journal of China coal society,1994,(01):21-31. 被引量:1

同被引文献10

引证文献1

二级引证文献6

投稿分析
职称考试

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈