| 岩爆及采矿诱发岩体失稳破坏过程数值模拟新方法 |
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| 引用本文： | 乔河,唐春安,李晓,陈荣德.岩爆及采矿诱发岩体失稳破坏过程数值模拟新方法[J].地质力学学报,1999,5(1):62-66. |
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| 作者姓名： | 乔河 唐春安 李晓 陈荣德 |
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| 作者单位： | 1. 中科院地质所工程地质力学开放试验室,北京,100086
2. 抚顺老虎台煤矿,辽宁,抚顺,113008 |
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| 基金项目： | 国家杰出人才基金;5952408; |
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| 摘 要： | 岩石介质的宏观非线性主要是由非均质性和各向异性造成的，应用新的数值计算软件ＲＦＰＡ（２Ｄ）－基于岩石宏观非线性行为可能是由具弹脆性特征的细观微元何不断破裂造成的，造成微元体不断破裂的原因是微地体材料性质的非均匀性，是一个数学上相对简单但能考虑岩石介质复杂性的方法，对采动引起起岩体失稳破坏的全过程进行了数值模拟研究，表明应用ＲＦＰＡ（２Ｄ）是切实可行的。
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| 关 键 词： | 岩体失稳 非均质性 数值模拟 |
| 收稿时间： | 1998/4/20 0:00:00 |
| 修稿时间： | 1998-04-20 |
NEW NUMERICAL SIMULATION METHOD OF ROCK FAILURE PROCESS UNDER ROCKBURST AND EXCAVATING |
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| QIAO He,TANG Chun''an,LI Xiao and CHEN Rongde.NEW NUMERICAL SIMULATION METHOD OF ROCK FAILURE PROCESS UNDER ROCKBURST AND EXCAVATING[J].Journal of Geomechanics,1999,5(1):62-66. |
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| Authors: | QIAO He TANG Chun'an LI Xiao and CHEN Rongde |
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| Institution: | L. E. G. Institute of Geology, Beijing 100029,L. E. G. Institute of Geology, Beijing 100029,L. E. G. Institute of Geology, Beijing 100029 and Lao Hutai Mine, Fushun Liaoning 113008 |
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| Abstract: | The nonlinear deformation of rock is caused by heterogeneity and anisotropy.A newly developed numerical code, RFPA (2D) (Rock Failure Process Analysis), is applied to study of failure process of rock under excavating, and macroscopic non-linear behavior of rock may be caused by continually fracturing of micro-element with elastic-brittle character. The reason which causes micro-element continually fracturing (fracturing not at the same time)is the non-homogenous character of micro-element material, such as microelement''s strength, elastic modulus and Poisson''s ratio, etc.RFPA (2D) is a relative simple compater method on math, but the complication of rock material is considered enough. |
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| Keywords: | rock failure numerical simulation heterogeneity |
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