Hydro-Mechanical Processes due to Mechanized Tunneling in Soft Clay Rock (A05)

软粘土岩中机械化隧道开挖引起的水力机械过程 (A05)

• 批准号: 174188806
• 金额: --
• 依托单位: Lehrstuhl für Bodenmechanik, Grundbau u Umweltgeotechnik
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/174188806?language=en
• 关键词: Hydro; Mechanical; Processes; due; Mechanized

Subproject A5 investigates interactions between changes of the physical and mechanical proper-ties of swelling (and thus problematic) clay rock, induced by the mechanized tunneling process itself, and the swelling behavior of the clay by means of numerical models, considering realistic mechanical and hydraulic boundary conditions, as well as laboratory experiments. A constitutive relationship will be developed, based on a series of experiments, to describe the swelling pressure in terms of the degree of saturation and the suction as state variables. Finally, methods of model adaption will be applied to reduce the complexity of the numerical models.

subproject A5研究了由机械化的隧道过程本身引起的肿胀（以及有问题的）粘土岩石的物理和机械适当状态的变化，以及通过数值模型的粘土行为引起的，考虑到逼真的机械和液压，边界条件以及实验实验。基于一系列实验，将开发构成关系，以描述饱和程度和吸力作为状态变量的肿胀压力。最后，将应用模型适应方法来降低数值模型的复杂性。