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地质力学学报:2003,9(3):281-288
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承压水底板突水失稳过程的数值模型初探
(1.东北大学, 辽宁沈阳 110006;2.中国矿业大学, 江苏徐州 221008)
NUMERICAL MODEL OF THE INSTABILITY-FAILURE PROCESS OF THE COAL-BED FLOOR DUE TO CONFINED WATER INRUSH
(1.Northeastern University, Shenyang 110004, Liaoning, China;2.China University of Mining Technology, Xuzhou 221008, Jiangsu, China)
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投稿时间:2002-11-05    
中文摘要: 利用自行开发的岩石破裂过程渗流与应力耦合分析系统F-RFPA2D,对承压水底板破裂失稳过程进行了数值模拟。在这个数值模型中,材料在开裂破坏过程中流体压力传递通过单元渗流-损伤耦合迭代来实现。根据模拟结果,分析了承压水底板失稳的机理,对承压水底板的突水部位的预测进行了探讨。得出了与实际基本一致的结果,说明了F-RFPA2D作为一种新的数值模拟方法,可以用来研究承压水底板突水问题。
Abstract:In this paper the instability-failure process of floor due to confined water inrush is numerically simulated by using the Coupling System of Flow & Solid in Rock Failure Process Analysis(F-FRPA2D) that has be en recently developed by CRISR,Northeastern University.In this numerical model the fluid pressure transmission during the rupture-failure process of material is achieved by the coupling and iteration of flow-damage of an element.According to the results of the simulation the instability-failure mechanism of floor associated with the confined aquifer is analyzed and the position where water inrush is liable to happen is predicted.The results are in the main consistent with t he phenomena at the site,which indicates that the F-RFPA2D,as a newly developed numerical simulation code,can be used to study water inrush from the confin ed aquifer through the floor.
文章编号:     中图分类号:P554    文献标志码:
基金项目:国家自然科学基金资助(50204003)
引用文本:
杨天鸿,唐春安,刘红元,等,2003.承压水底板突水失稳过程的数值模型初探[J].地质力学学报,9(3):281-288.DOI:
YANG Tian-hong,TANG Chun-an,LIU Hong-yuan,et al,2003.NUMERICAL MODEL OF THE INSTABILITY-FAILURE PROCESS OF THE COAL-BED FLOOR DUE TO CONFINED WATER INRUSH[J].Journal of Geomechanics,9(3):281-288.DOI:

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