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Multi-LoD BIM integrated design framework for pressurised tunnel: Hydro-mechanical coupling simulation and sustainability assessment
Tunnelling and Underground Space Technology ( IF 6.7 ) Pub Date : 2025-01-17 , DOI: 10.1016/j.tust.2025.106404
Feng Xiao, Xilin Chen, Yimo Zhu, Ping Xie, Saeed Salimzadeh, Qian-Bing Zhang

With increasing population growth and rapid urbanisation, humanity faces the urgent challenges of climate change, necessitating transformative actions in the infrastructure and energy sectors to ensure sustainability for future generations. The renewed global emphasis on developing and utilising hydropower, particularly through pumped hydro energy storage (PHES) systems, is pivotal in advancing the transition to Net Zero emissions. Tunnel Boring Machines (TBMs) are extensively employed in tunnel construction for the energy sector. However, several critical challenges persist throughout the lifecycle of these vital projects. These include the lifecycle assessment of the mechanical performance and embodied carbon of segmental linings, influenced by geometric factors such as tunnel alignment and diameter, fabrication patterns, and joint stiffness. Furthermore, the long-term hydro-mechanical performance of pressurised tunnel linings is significantly affected by variable internal water pressures and surrounding rock conditions. This paper proposes an integrated framework for TBM tunnel design, utilising multiple Levels of Detail (multi-LoD) Building Information Modelling (BIM) to systematically address these challenges and enhance the sustainability and resilience of underground infrastructure. Algorithms for both parametric modelling and pre-processing are developed to ensure the interoperability between BIM and numerical models. The mechanical response of segmented linings under various internal water pressure is investigated to analyse the composite behaviour of reinforced concrete segments, joints, lining gaps, secondary linings, and rock mass under internal pressure. The robustness of the framework is implemented into a use case analysing the deformation and waterproofing performance of a segmental lining structure under high internal pressure and complex geological conditions. Four cases with various reinforced concrete lining designs, featuring differing thicknesses of secondary linings and tunnel alignments, are analysed. Additionally, embodied carbon assessments are conducted for each case, and design optimisation is performed based on numerical modelling and sustainability assessment results. The integrated framework detailly illustrates how multi-LoD BIM, hydro-mechanical coupling, and embodied carbon accounting can be effectively combined to enhance the sustainability and efficiency of TBM tunnelling projects.

中文翻译:


用于加压隧道的 Multi-LoD BIM 集成设计框架:水力耦合仿真和可持续性评估



随着人口增长和快速城市化,人类面临着气候变化的紧迫挑战,需要在基础设施和能源领域采取变革性行动,以确保子孙后代的可持续性。全球重新强调开发和利用水电,特别是通过抽水蓄能 (PHES) 系统,对于推进向净零排放过渡至关重要。隧道掘进机 (TBM) 广泛用于能源行业的隧道建设。然而,在这些重要项目的整个生命周期中,仍然存在一些关键挑战。其中包括对管片衬砌的机械性能和隐含碳的生命周期评估,受隧道线形和直径、制造模式和节理刚度等几何因素的影响。此外,加压隧道衬砌的长期水力学性能受到变化的内部水压和周围岩石条件的显著影响。本文提出了一个 TBM 隧道设计的综合框架,利用多个细节层次 (multi-LoD) 建筑信息模型 (BIM) 来系统地应对这些挑战,并提高地下基础设施的可持续性和弹性。开发了参数化建模和预处理算法,以确保 BIM 和数值模型之间的互操作性。研究了分段衬砌在不同内部水压下的机械响应,以分析钢筋混凝土段、接缝、衬砌间隙、次衬砌和内压下岩体的复合行为。 该框架的稳健性被实施到一个用例中,分析了节段衬砌结构在高内压和复杂地质条件下的变形和防水性能。分析了四种具有不同钢筋混凝土衬砌设计的情况,其中次生衬砌和隧道路线的厚度不同。此外,对每个案例进行隐含碳评估,并根据数值建模和可持续性评估结果进行设计优化。该综合框架详细说明了如何有效地结合多LoD BIM、水力机械耦合和隐含碳核算,以提高TBM隧道掘进项目的可持续性和效率。
更新日期:2025-01-17
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