青藏高原典型隧道施工安全风险评价研究
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摘要
针对高海拔寒区带来的复杂施工环境、恶劣气候条件对隧道施工的不利影响,提出对青藏高原典型隧道施工进行安全风险评价。采用模糊网络分析法构建青藏高原典型隧道施工安全风险评价模型,通过风险因素辨识、走访调查等方式构建安全风险评价指标体系。最后,以巴玉隧道进行实证研究,结果表明,巴玉隧道施工安全风险评价等级为高风险隧道,与实地调查情况相符,对较高风险源提出了应对措施。并为同类别的高海拔寒区隧道施工安全风险评价提供理论参考具有重要意义。
In view of the adverse effects of complex construction environment and severe climatic conditions on tunnel construction caused by high altitude cold area, the safety risk assessment of typical tunnel construction on Qinghai-Tibet Plateau is proposed. The fuzzy network analysis method is used to construct a safety risk assessment model for typical tunnel construction in the Qinghai-Tibet Plateau.The risk risk assessment index system is constructed through risk factor identification and interview investigation. Finally, the empirical study of the Bayu tunnel shows that the construction safety risk assessment level of the Bayu tunnel is a high-risk tunnel, which is consistent with the field investigation and puts forward countermeasures for higher risk sources. It is of great significance to provide a theoretical reference for the safety risk assessment of high-altitude cold zone tunnel construction in the same category.
In view of the adverse effects of complex construction environment and severe climatic conditions on tunnel construction caused by high altitude cold area, the safety risk assessment of typical tunnel construction on Qinghai-Tibet Plateau is proposed. The fuzzy network analysis method is used to construct a safety risk assessment model for typical tunnel construction in the Qinghai-Tibet Plateau.The risk risk assessment index system is constructed through risk factor identification and interview investigation. Finally, the empirical study of the Bayu tunnel shows that the construction safety risk assessment level of the Bayu tunnel is a high-risk tunnel, which is consistent with the field investigation and puts forward countermeasures for higher risk sources. It is of great significance to provide a theoretical reference for the safety risk assessment of high-altitude cold zone tunnel construction in the same category.
引文
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[3]邓攀.高海拔地区隧道工程施工方案评价研究[D].重庆交通大学,2015.
[4]黄俐.北京地铁盾构施工沉降风险机理研究及评价模型构建[D].中国矿业大学(北京),2012.
[5]唐小丽.模糊网络分析法及其在大型工程项目风险评价中的应用研究[D].南京理工大学,2007.