摘要
随着公路网不断完善,山区修建公路隧道工程时有发生。然而,受山区复杂地质条件和施工条件等因素影响,新奥法施工隧道围岩整体安全稳定性评价一直是工程界面临的重要课题之一。基于此,依托某山区公路隧道工程背景,借助ABAQUS有限元软件建立数值模型,对隧道开挖卸载围岩及支护结构稳定性进行分析,并借助现场实测数据验证了数值模型的合理性。同时,结合长期工程实践经验,对保障隧道围岩整体安全稳定性的技术措施进行探讨,为类似工程实践提供参考依据。
With the continuous improvement of the road network, construction of highway tunnel projects have been under way in mountainous areas. However, due to the complicated geological conditions and construction conditions in mountainous areas, the safety and stability evaluation of the surrounding rock of the New Austrian Tunneling Tunnel Method has been one of the important issues the engineering industry is facing. Based on this, based on the background of a mountain highway tunnel project, ABAQUS finite element software is used to establish the numerical model. The stability of sur- rounding rock and supporting structure of tunnel excavation are analyzed, and the rationality of the numerical model is verified by field data. At the same time, combined with long-term engineering practice experience, the technical measures for ensuring the overall safety and stability of tunnel surrounding rock are discussed, which provides reference for similar engineering practice.
出处
《低温建筑技术》
2017年第7期96-98,共3页
Low Temperature Architecture Technology
