| 坝区裂隙岩体渗流场与应力场耦合分析 |
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| 引用本文： | 王环玲,徐卫亚,晏鄂川.坝区裂隙岩体渗流场与应力场耦合分析[J].兰州理工大学学报,2004,30(5):112-115. |
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| 作者姓名： | 王环玲 徐卫亚 晏鄂川 |
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| 作者单位： | 河海大学,岩土工程研究所,江苏,南京,210098;中国地质大学,工程学院,湖北,武汉,430074 |
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| 摘 要： | 分析了裂隙岩体渗流场与应力场相互作用的实质,提出了渗流的渗透体积力、渗透压力以及对应力场的影响机理;采用有限元数值模拟的方法计算出渗流场影响下的应力场分布、应力场影响下的渗流场分布以及应力场和渗流场各自非耦合分布.以工程实例说明:在渗流作用力的影响下,坝基的各应力分量都增大,对坝基的稳定造成了不利影响.
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| 关 键 词： | 裂隙岩体 渗流场 应力场 耦合分析 |
| 文章编号： | 1000-5889(2004)05-0112-04 |
| 修稿时间： | 2003年12月6日 |
Coupled analysis of seepage field and stress field in dam fractured rockmass |
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| WANG Huan-ling,XU Wei-ya,YAN E-chuan.Coupled analysis of seepage field and stress field in dam fractured rockmass[J].Journal of Lanzhou University of Technology,2004,30(5):112-115. |
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| Authors: | WANG Huan-ling XU Wei-ya YAN E-chuan |
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| Institution: | WANG Huan-ling~1,XU Wei-ya~1,YAN E-chuan~2 |
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| Abstract: | The essence of interaction of seepage field and stress field in fissure rockmass is analyzed,permeate volume strength and permeate pressure and their effects on stress field are also presented.The stress distribution influenced by the seepage field,the seepage distribution influenced by the stress field,and the uncoupled distribution of both stress field and seepage field are computed by means of numeric simulation method with FEM.It can be shown by an engineering illustration that the values of all stress components under the dam foundation increase due to the seepage,deteriorating the stabilization of the dam. |
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| Keywords: | fractured rockmass seepage field stress field coupled analysis |
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