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Home
Contribution Guide
About Journal
Submission Guidelines
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Online First
Current Articles
Archive
Most Download
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Ethics Statement
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中文
CHENXiaoting, . FEM/DEM法在典型柱状危岩体破坏过程数值分析中的应用[J]. Hydrogeology & Engineering Geology, 2018, 45(4): 130-137. DOI: 10.16030/j.cnki.issn.1000-3665.2018.04.20
Citation:
CHENXiaoting, . FEM/DEM法在典型柱状危岩体破坏过程数值分析中的应用[J]. Hydrogeology & Engineering Geology, 2018, 45(4): 130-137. DOI: 10.16030/j.cnki.issn.1000-3665.2018.04.20
CHENXiaoting, . FEM/DEM法在典型柱状危岩体破坏过程数值分析中的应用[J]. Hydrogeology & Engineering Geology, 2018, 45(4): 130-137. DOI: 10.16030/j.cnki.issn.1000-3665.2018.04.20
Citation:
CHENXiaoting, . FEM/DEM法在典型柱状危岩体破坏过程数值分析中的应用[J]. Hydrogeology & Engineering Geology, 2018, 45(4): 130-137. DOI: 10.16030/j.cnki.issn.1000-3665.2018.04.20
FEM/DEM法在典型柱状危岩体破坏过程数值分析中的应用
CHENXiaoting
,
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Abstract
有限元/离散元耦合分析方法(FEM/DEM法)可计算连续介质的小变形,也可在新生裂缝并在裂隙间开展大变形计算。文章以位于重庆市巫山县长江左岸的箭穿洞柱状危岩体为例,分析了箭穿洞危岩体可能的破坏过程。分析表明:柱状危岩体的基座处于应力集中状态,既有拉应力集中区也有压应力集中区,应力集中造成柱状危岩体的基座附近边界岩体易破坏。应力集中新生了裂隙,裂隙的延展导致了危岩体的解体和最终的破坏。FEM/DEM方法预演了柱状危岩体压致拉裂的裂隙网络形成和破碎岩体运动过程。FEM/DEM对帮助分析大小变形混合的斜坡变形十分有利,是未来数值模拟的发展方向之一。
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