| 离散单元法中接触变化诱导的水头变化 |
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| 引用本文： | 肖裕行,王思敬,王泳嘉.离散单元法中接触变化诱导的水头变化[J].岩土力学,1999,20(2):5-9. |
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| 作者姓名： | 肖裕行 王思敬 王泳嘉 |
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| 作者单位： | 中国科学院地质研究所!北京100029(肖裕行，王思敬)，东北大学资源与土木工程学院!沈阳110006(王泳嘉) |
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| 基金项目： | 中国科学院王宽诚博士后工作奖励基金,中国科学院资源与生态环境研究重点项目 |
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| 摘 要： | 利用离散单元法模拟岩土体水力耦合行为时，有必要考虑块体的渗透性。为此，基于流量守恒原理，建立了块体间三种接触变化导致的边界节点水头变化关系，它们与 Ｃｕｎｄａｌｌ已建立的边界节点质量和速度变化关系一起，使二维离散单元法模拟岩土体水力耦合行为时满足力学的基本原理。
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| 关 键 词： | 离散单元法 流量守恒 接触变化 |
Hydraulic Head Variations Due to Contact Changes in 2-D DEM |
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| Xiao Yux ing,W ang Sijing.Hydraulic Head Variations Due to Contact Changes in 2-D DEM[J].Rock and Soil Mechanics,1999,20(2):5-9. |
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| Authors: | Xiao Yux ing W ang Sijing |
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| Abstract: | In sim ulating hydrom echanical behavior of geo m aterials through distinct elem ent m ethod( D E M ), it is necessary to account for perm eability of blocks. To this end, the form ula describing hydraulichead variations of relevant nodes induced by changes in contacts are proposed, based on the principle of fluidflux conservation. These results, together w ith the form ula describing variations in m ass and velocitydeveloped by Cundall, enable 2 D D E M to satisfy the fundam ental m echanical principles. |
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| Keywords: | distinct elem ent m ethod fluid flux conservation changes in contact |
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