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分析粘弹围岩稳定性的新方法—离散记忆积分法
引用本文:贾立宏,吴文德.分析粘弹围岩稳定性的新方法—离散记忆积分法[J].南方冶金学院学报,1993,14(3):189-196.
作者姓名:贾立宏  吴文德
作者单位:南方冶金学院基础部 (贾立宏),北京科技大学(吴文德)
摘    要:提出一种新的数值方法——离散记忆积分法。它用于分析粘弹围岩在弹性衬砌支护下的稳定性问题。文中Boltzmann's积分,即积分型粘弹本构关系,在总的时间和空间上被离散,而在离散的每个时步内使用以微分型本构关系为基础的对应性原理。方法不受巷道断面形状和衬砌建成时间的限制,可求出围岩和衬砌内的应力、位移及两者交界面上的围岩压力,通过将圆形断面巷道的计算结果与解析解比较,证明本方法是有效的,并对直壁圆拱形巷道进行了数值分析。

关 键 词:衬砌  围岩稳定性  粘弹性

A New Method of Surrounding Rock Stability Analysis
Jia Lihong Wu Wende.A New Method of Surrounding Rock Stability Analysis[J].Journal of Southern Institute of Metallurgy,1993,14(3):189-196.
Authors:Jia Lihong Wu Wende
Affiliation:Jia Lihong Wu Wende (Department of Basic Courses) (University of Science and Technology Baiying)
Abstract:This paper presents a new method, the discretizing integral method which is intended to analyze the viscoelastic stability of surrounding rocks supported by a lining. By this method, the Boltzmann's integral is discretized in time and space; neither the shape of the roadway section nor the time length of teh lining's construction is conditioned. But the displacements, pressure of the roadway and the stress in the rocks and lining can be worked out. The method proves effective by comparing the calculations of a circular - sectioned roadway wity the analytical solutinon. And a numerical analysis is made of an arched straighe- walled roadway.
Keywords:surrounding rock stress  lining  viscoelasticity
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