| 彭成,王曼.基于流固耦合理论土工布对尾矿坝的渗流-应力场影响分析[J].南华大学学报(自然科学版),2019,33(2):8~15.[PENG Cheng,WANG Man.The Analysis on Influence of Geotextile on Seepage-stress Field of Tailings Dam Based on Fluid-structure Interaction Theory[J].Journal of University of South China(Science and Technology),2019,33(2):8~15.] |
| 基于流固耦合理论土工布对尾矿坝的渗流-应力场影响分析 |
| The Analysis on Influence of Geotextile on Seepage-stress Field of Tailings Dam Based on Fluid-structure Interaction Theory |
| 投稿时间：2018-10-29 |
| DOI： |
| 中文关键词: 尾矿坝 流固耦合 土工布 渗流分析 |
| 英文关键词:the tailings dam the fluid-structure interaction the geotextile the seepage stability |
| 基金项目:湖南省教育厅项目(16C1380);南华大学博士科研启动基金项目(2012XQD01) |
|
| 摘要点击次数: 711 |
| 全文下载次数: 369 |
| 中文摘要: |
| 基于非饱和流固耦合理论,分析土工布对尾矿坝渗流-应力场的影响,以湖南某尾矿坝为背景,运用FLAC 3D(fast Lagrangian analysis of continua)软件,建立三维尾矿坝数值模型,模拟不同工况下尾矿坝的渗流-应力场影响。通过考虑耦合作用应力场和位移场对比分析,分析流固耦合作用下不同层数土工布对尾矿坝的渗流-应力影响。研究结果表明:非饱和流固耦合理论可以更为客观的分析尾矿坝的实际情况;耦合作用下尾矿坝的沉降明显比不考虑耦合作用的沉降大;铺设土工布对于减少坝体沉降量有明显的积极作用;土工布在耦合作用下的孔隙水压力明显比不考虑耦合时大,而且孔隙水压力分布较为均匀;这可以对尾矿坝的渗流-应力场的分析以及尾矿坝的设计运行提出合理建议和参考依据。 |
| 英文摘要: |
| Based on the unsaturated fluid-structure interaction theory,the paper analyzes the effects between the geotextile on the seepage and the stress field of tailings dam.According to a tailings dam in Hunan as the background,the FLAC3D software is used to establish a three-dimensional tailings dam numerical model to simulate the seepage-stress effects of the tailings dam under different working conditions.By considering the coupled stress and displacement fields,the effect of geotextiles with different layers on seepage stability of tailings dam under fluid-structure interaction is analyzed.The results show that the theory of unsaturated fluid-structure interaction can be more objective to analyze the actual situation of the tailings dam;the sedimentation of the tailings dam under the coupling effect is obviously larger than that without consideration of the coupling effect;the laying of geotextiles has an obvious positive effect on reducing the sedimentation of the dam;the pore water pressure of the geotextile under the coupling action is obviously higher than that of the coupling.The distribution of pore water pressure is more well-distributed;this can be a reasonable advice and reference for the analysis of the seepage-stress field of the tailings dam.And it can also give some referrible basis to the design and operation of the tailingsdam. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |