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金属矿山 ›› 2008, Vol. 38 ›› Issue (07): 9-11+26.

• 采矿工程 • 上一篇    下一篇

加锚岩体复合弹模的研究

方从严1,张雷2   

  1. 1.芜湖技术职业学院;2.马钢南山矿业有限责任公司
  • 收稿日期:2008-05-16 出版日期:2008-07-15 发布日期:2011-07-16
  • 基金资助:

    建设部科学技术研究项目(编号:2007-k6-11),安徽省高等学校自然科学基金项目(编号:2005KJ389zc)。

Composite Elastic Modulus of Anchored Rockmass

Fang Congyan1,Zhang Lei2   

  1. 1.Wuhu Institute of Technology;2.MaSteel Nanshan Mining Co
  • Received:2008-05-16 Online:2008-07-15 Published:2011-07-16

摘要: 为研究岩体加锚的物理效应,将被全长粘结锚杆加固的岩体当作一复合体,根据其受力后变形的特点,利用弹性力学理论推导了该复合体在锚杆的轴向和垂直锚杆轴向的弹性模量,并利用界面元法进行了数值计算。理论分析和数值计算均表明,加锚能提高岩体的弹性模量。通过对这两种方法计算结果的比较分析,给出了实用的简化计算公式。

关键词: 岩体, 加锚, 弹性模量

Abstract: The physical and mechanical effects of rockmass anchoring are very obvious.The rockmass strengthened by full length grouted bolt is regarded as a composite body and according to its deformation characteristics when it is stressed,the composite elastic modulus along bolt axial direction and vertical to the bolt axle is deduced by elastic mechanical theory,which is compared with the result obtained by numerical analysis.On this basis,a practical simplified algorithm is given.

Key words: Rockmass, Anchoring, Elastic modulus