• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Engineering analysis with boundary elements >Investigate the influence of the in-situ stress conditions on the grout penetration process in fractured rocks using the combined finite-discrete element method
【24h】

Investigate the influence of the in-situ stress conditions on the grout penetration process in fractured rocks using the combined finite-discrete element method

机译：利用有限元组合方法研究地应力条件对裂隙岩浆灌浆过程的影响

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Grouting is widely used to reduce hydraulic conductivity and enhance the strength of rock masses in geotechnical engineering. With the depletion of shallow resources and expansion of human activities, more underground projects are operated in deeper underground under high in-situ stress conditions. Understanding and controlling the grout penetration process under high in-situ stress conditions are critical to optimizing the grouting process in deep underground projects. In this work, we develop a FDEM-grouting model to study the effect of in-situ stress conditions on the grout penetration process by combining the combined finite-discrete element method (FDEM) with a grout simulator. The ability of FDEM-grouting to model grout penetration in fracture networks is confirmed by numerical tests compared with analytical solutions. The necessity of considering the effects of the fracture roughness, in-situ stress and HM coupling on the grout penetration process are discussed. A persistent fracture network is designed to investigate the grout penetration process under various in-situ stress conditions. The results show that the in-situ stress conditions can greatly affect the grout penetration in fracture networks. The anisotropic grout penetration under in-situ stress conditions is potentially useful for improving the grouting design.
机译：在岩土工程中，灌浆被广泛用于降低水力传导性并增强岩体的强度。随着浅层资源的枯竭和人类活动的扩大，更多的地下项目在较高的原地应力条件下在更深的地下运行。了解和控制高地应力条件下的灌浆渗透过程对于优化深部地下项目的灌浆过程至关重要。在这项工作中，我们开发了FDEM灌浆模型，通过结合有限离散元方法（FDEM）和灌浆模拟器来研究现场应力条件对灌浆渗透过程的影响。与分析解决方案相比，数值测试证实了FDEM灌浆模拟裂缝网络中灌浆渗透的能力。讨论了考虑裂缝粗糙度，原地应力和HM耦合对灌浆渗透过程的影响的必要性。设计持久性裂缝网络以研究各种现场应力条件下的灌浆渗透过程。结果表明，原位应力条件可以极大地影响灌浆在裂缝网络中的渗透。在现场应力条件下各向异性灌浆的渗透对于改进灌浆设计可能是有用的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号