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首页> 外文期刊>Soil mechanics and foundation engineering >FINITE ELEMENT SIMULATION OF ROCK MECHANICAL PROPERTIES IN ROCK SURROUNDING A DEEP TUNNEL WITH WATER LEAKAGE
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FINITE ELEMENT SIMULATION OF ROCK MECHANICAL PROPERTIES IN ROCK SURROUNDING A DEEP TUNNEL WITH WATER LEAKAGE

机译：漏水围绕深隧洞岩石力学性能的有限元模拟

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摘要

A finite element model is presented which simulates the tunnel construction process, and deformation and stress characteristics, in the surrounding rock during its operation stage. The pore water pressure and distribution law of leakage in the surrounding rock are calculated by considering the effect of groundwater. The results show that during the process of excavation, the surrounding rock undergoes a small degree of stress relief, and relatively low tensile stresses appear locally at the bottom of tunnel vaults and inverts. As tunnel leakage decreases, there is a time-dependent decrease in pore water pressure. However, stress in the supporting structures increases, and displacement and deformation in the surrounding rock increases as leakage continues.
机译：提出了一种有限元模型，其在其操作阶段在周围岩石中模拟隧道施工过程和变形和应力特性。通过考虑地下水的效果来计算周围岩石中泄漏泄漏的孔隙水压和分布规律。结果表明，在挖掘过程中，周围的岩石经历了小程度的应力浮雕，并且相对低的拉伸应力在隧道拱顶底部出现在隧道穹窿和反转。随着隧道泄漏减少，孔隙水压力的时间依赖性降低。然而，支撑结构的应力增加，随着泄漏持续的，周围岩石中的位移和变形增加。

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  • 来源
    《Soil mechanics and foundation engineering》 |2020年第2期|127-132|共6页
  • 作者

    Wang F.; Fan Y.; Guo C.; Qin L.; Hu D.;

  • 作者单位

    Zhengzhou Univ Sch Water Conservancy & Environm Zhengzhou Peoples R China;

    Zhengzhou Univ Sch Water Conservancy & Environm Zhengzhou Peoples R China;

    Zhengzhou Univ Sch Water Conservancy & Environm Zhengzhou Peoples R China|Sun Yat Sen Univ Sch Civil Engn Guangzhou Peoples R China;

    Zhengzhou Univ Sch Water Conservancy & Environm Zhengzhou Peoples R China;

    Sun Yat Sen Univ Sch Civil Engn Guangzhou Peoples R China;

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  • 正文语种 eng
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