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现代矿业 ›› 2013, Vol. 29 ›› Issue (11): 25-33+50.

• 安全与环保 • 上一篇    下一篇

非圆形断面围岩应力计算的几何等代法

纪维伟1,楼晓明1,2,陈鹏辉1   

  1. 1.福州大学紫金矿业学院;2.福州大学爆炸技术研究所
  • 出版日期:2013-11-15 发布日期:2014-04-08
  • 基金资助:

    福建省自然科学基金资助项目(编号:2011J01310)

Geometric Equlivalent Method of the Noncircular Cross Section Surrounding Rock Stress Caculation

Ji Weiwei1,Lou Xiaoming1,2,Chen Penghui1   

  1. 1.College of Zijin Mining,Fuzhou University;2.Research Institute of Explosion Technology,Fuzhou University
  • Online:2013-11-15 Published:2014-04-08

摘要: 采用ABAQUS软件,通过有限元数值模拟的方法,分析比较了不同断面形式下几何等代法进行应力计算的准确性,从而提出了几何等代法在进行应力计算时的优缺点、适用范围及改进方向。几何等代法通过几何半径的等代将非圆形断面的应力计算转化为圆形断面的应力计算,算法简单,易于在工程上进行推广。

关键词: 非圆形断面, 几何等代法, 数值模拟

Abstract: The accuracy of stress caculation results of geometric equlivalent method of different sections are analyzed by adopting the fininte numerical simulation method the support of ABAQUS software.So,the advantages and disadvantages,scope of application and the improvement direction of stress caculation by using the geometric equlivalent are proposed.The research resuls show that,the stress caculation of noncircular cross section is converted to caculating the stress of circular cross by the geometric equlivalent method.On the whole,the principle of the algorithm is simple,and it is no difficult to adopt the algorithm to solve the practical problems.

Key words: Noncircular cross section, Geometric equlivalent method, Numerical simulation