机场飞行区地下穿越工程管理与建造要点

中国民航业的快速发展致使许多机场出现了开发利用地下空间的需求，尤其是地下道路穿越既有飞行区的需求。因此，文章在调研分析了多个国内外机场飞行区地下穿越工程的基础上，从管理、规划和建造方面总结了机场飞行区地下穿越工程的建设要点。在管理方面，需要制定贯穿下穿越工程全过程的安全管理体系，并实施安全风险管理，严格执行不停航施工和禁区施工的规定。在规划方面，需要充分考虑机场功能区的空间组织和布局，采用近期与远期相结合、地上与地下相协调、开发与保护相统一的原则，实现机场飞行区不同功能区的有机、高效连接。在建造方面，需要以机场飞行区的运营要求为基础制定下穿越工程的变形控制标准，采用精细化设计、微扰动施工和高精度监测等控制技术，实施分区域、分阶段、分级的扰动控制，实现机场安全运营和经济的平衡。上述管理和建设要点可为其他飞行区的下穿越工程提供借鉴和参考。

Key points in managing and constructing under crossing projects in airfield area

The rapid development of civil aviation industry in China has led to the increased demand for underground space in airfield areas, especially under crossings to connect different functional zones. We summarized here the key points in managing, planning and constructing under crossing projects in airfield areas based on our investigation and analyses of several such projects. In project managing, it is necessary to establish a safety management system throughout the life of the project in terms of safety risk management and complying with regulations for non-stop construction or construction in forbidden zones. In planning, the balances between short- and long-term planning, use of ground and underground space, development and conservation should be considered. The organization and layout of the functional zones in the airfield area should determine the layout and scale of the underground crossing. Finally in constructing an under crossing project, the deformation control value for under crossing construction should first be established based on the requirements of airfield operation, followed by use of fine design, micro-disturbance construction and high precision monitoring to balancing safety and economy, with implementation of the sub-zone, sub-stage and sub-grade control rule. These key points may in general guide under crossing construction projects in airfield area.