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An analysis tool for real-time quantification of stress states in shotcrete tunnel linings

机译:实时量化喷射混凝土衬砌中应力状态的分析工具

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摘要

An analysis tool for on-site monitoring of the level of loading in tunnel linings is presented. It is characterized by the combination of in situ displacement measurements at measurement points (MPs) installed at the inner surface of the shotcrete lining and a realistic material model for shotcrete. The underlying shell-theory-based structural model of the tunnel lining leads to a significant reduction of the computation time and provides the robustness required for on-site applications. Recent results obtained from the application of the developed analysis tool in the course of the excavation of the Lainzer tunnel (Austria) are presented.
机译:提出了一种用于现场监测隧道衬砌荷载水平的分析工具。它的特点是结合了在喷射混凝土衬砌内表面上安装的测量点(MP)上的原位位移测量结果和实际的喷射混凝土材料模型。隧道衬砌的基于壳理论的基础结构模型可显着减少计算时间,并提供现场应用所需的鲁棒性。介绍了在Lainzer隧道(奥地利)开挖过程中使用开发的分析工具所获得的最新结果。

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